NOAA KLM User's Guide

Section 8.3.1.5.3.2

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8.3.1.5.3.2 NOAA-N (version 3, post-April 28, 2005, all satellites)

The HIRS/4 Level 1b Data Format (version 3, post-April 28, 2005, all satellites) is described in Table 8.3.1.5.3.2-1.

Table 8.3.1.5.3.2-1. Format of HIRS/4 Data Format (version 3, post-April 28, 2005, all satellites).
Field Name	Start Octet	End Octet	Data Type	Word Size	Number of Words	Scale Factor	Units	Notes
SCAN LINE INFORMATION
Scan Line Number (cumulative, starting with 1)	1	2	u	2	1	0
Scan Line Year (4 digit year)	3	4	u	2	1	0	year
Scan Line Day of Year (3 digit day)	5	6	u	2	1	0	day
Satellite Clock Drift Delta	7	8	i	2	1	0	milliseconds
Scan Line UTC Time of Day	9	12	u	4	1	0	milliseconds
Scan Line Bit Field bit 15: satellite direction (0=northbound; 1=southbound) bit 14: clock drift correction (0=not corrected; 1=scan time corrected for clock drift) bits 13-0: <zero fill>	13	14	u	2	1	0
Major Frame Count (cumulative, starting with 1)	15	16	u	2	1	0
Scan Position Number in 32 Second Cycle	17	18	u	2	1	0
Scan Type Code 0=earth view 1=space view 2=cold blackbody (BB) view 3=main (warm) BB view	19	20	u	2	1	0
<Zero Fill>	21	28	i	4	2	0
QUALITY INDICATORS
Quality Indicator Bit Field (if a bit is on (=1), the statement is true) bit 31: do not use scan for product generation bit 30: time sequence error detected within this scan (see below) bit 29: data gap precedes this scan bit 28: calibration anomaly detected (see below) bit 27: earth location data not available (see below) bit 26: first good time following a clock update (nominally 0) bit 25: instrument status changed with this scan bits 24 - 0: <zero fill>	29	32	u	4	1	0		3
Scan Line Quality Flags [Additional Calibration Problem Code] (If a bit is on (=1), the statement is true. See "Scan Line Quality Flags [Calibration Problem Code]," below.) bits 7-0: <Zero Fill >	33	33	u	1	1	0
Scan Line Quality Flags [Time Problem Code] (If a bit is on (=1), the statement is true. All bits off implies the scan time is as expected.) bit 7: time field is bad but can probably be inferred from the previous good time bit 6: time field is bad and can't be inferred from the previous good time bit 5: this record starts a sequence that is inconsistent with previous times (i.e., there is a time discontinuity). This may be associated with a spacecraft clock update. (See bit 26, Quality Indicator Bit Field.) bit 4: start of a sequence that apparently repeats scan times that have been previously accepted bits 3-0: <zero fill>	34	34	u	1	1	0
Scan Line Quality Flags [Calibration Problem Code] (If a bit is on (=1), the statement is true. These bits along with those in "Scan Line Quality Flags [Additional Calibration Problem Code]," complement the channel indicators; all bits set to 0 indicates normal calibration.) bit 7: scan was not calibrated bit 6: scan contains marginal calibration in some of the IR channels bit 5: PRT quality test failed bit 4: PRT data marginal, some readings were rejected bit 3: scan contains some uncalibrated channels bit 2: scan indicates that the normal HIRS calibration sequence is disabled bit 1: space view scan is lunar contaminated bit 0:<zero fill>	35	35	u	1	1	0
Scan Line Quality Flags [Earth Location Problem Code] (If a bit is on (=1), the statement is true. All bits set to 0 implies the earth location was normal.) bit 7: not earth located because of bad time; earth location fields zero-filled bit 6: earth location questionable: questionable time code (see time problem flags above and Note 4) bit 5: earth location questionable: marginal agreement with reasonableness check bit 4: earth location questionable: fails reasonableness check bits 3-0: <zero fill>	36	36	u	1	1	0		4
Calibration Quality Flags (all bits off implies a good calibration; bit 1 or 2 on implies instrument is noisy, although data may still be usable.) Word 1: Channel 1 bit 15-6: <zero fill> bit 5: calibration failed bit 4: anomalous space or blackbody view data bit 3: calibration slope value came from the HCF bit 2: Blackbody views failed NEDC test bit 1: Space views failed NEDC test bit 0: some QC tests could not be applied Words 2-20: Channels 17, 2, 3, 13, 4, 18, 11, 19, 7, 8, 20, 10, 14, 6, 5, 15, 12, 16, 9 (in order)	37	76	u	2	20	0		3
Minor Frame Quality Indicator Bit Fields (for bits 7 through 1, if bit is on (=1) then statement is true) Word 1: Minor Frame 0 bit 7: this frame suspect due to a time error bit 6: this frame contains data gap data fill bit 5: this frame contains TIP dwell data fill bit 4: data suspect due to PACS QC error bit 3: mirror locked during this frame bit 2: mirror position error during this frame bit 1: mirror was moving during this frame bit 0: minor word odd parity bit Words 2 - 64: Minor Frames 1 - 63 (in order)	77	140	u	1	64	0
<Zero Fill>	141	156	i	4	4	0
CALIBRATION COEFFICIENTS (The following coefficients are <Zero Fill> in commanded position modes: nadir, space, internal cold target, internal warm target. Refer to Data Element 63, First and Second Status Words for the current mode.)
Primary Calibration Ch 1 Second Order Term	157	160	i	4	1	12
Primary Calibration Ch 1 First Order Term	161	164	i	4	1	9
Primary Calibration Ch 1 Zeroth Order Term	165	168	i	4	1	6
Primary Calibration Ch 17 Second Order Term	169	172	i	4	1	12
Primary Calibration Ch 17 First Order Term	173	176	i	4	1	9
Primary Calibration Ch 17 Zeroth Order Term	177	180	i	4	1	6
Primary Calibration Ch 2 Second Order Term	181	184	i	4	1	12
Primary Calibration Ch 2 First Order Term	185	188	i	4	1	9
Primary Calibration Ch 2 Zeroth Order Term	189	192	i	4	1	6
Primary Calibration Ch 3 Second Order Term	193	196	i	4	1	12
Primary Calibration Ch 3 First Order Term	197	200	i	4	1	9
Primary Calibration Ch 3 Zeroth Order Term	201	204	i	4	1	6
Primary Calibration Ch 13 Second Order Term	205	208	i	4	1	12
Primary Calibration Ch 13 First Order Term	209	212	i	4	1	9
Primary Calibration Ch 13 Zeroth Order Term	213	216	i	4	1	6
Primary Calibration Ch 4 Second Order Term	217	220	i	4	1	12
Primary Calibration Ch 4 First Order Term	221	224	i	4	1	9
Primary Calibration Ch 4 Zeroth Order Term	225	228	i	4	1	6
Primary Calibration Ch 18 Second Order Term	229	232	i	4	1	12
Primary Calibration Ch 18 First Order Term	233	236	i	4	1	9
Primary Calibration Ch 18 Zeroth Order Term	237	240	i	4	1	6
Primary Calibration Ch 11 Second Order Term	241	244	i	4	1	12
Primary Calibration Ch 11 First Order Term	245	248	i	4	1	9
Primary Calibration Ch 11 Zeroth Order Term	249	252	i	4	1	6
Primary Calibration Ch 19 Second Order Term	253	256	i	4	1	12
Primary Calibration Ch 19 First Order Term	257	260	i	4	1	9
Primary Calibration Ch 19 Zeroth Order Term	261	264	i	4	1	6
Primary Calibration Ch 7 Second Order Term	265	268	i	4	1	12
Primary Calibration Ch 7 First Order Term	269	272	i	4	1	9
Primary Calibration Ch 7 Zeroth Order Term	273	276	i	4	1	6
Primary Calibration Ch 8 Second Order Term	277	280	i	4	1	12
Primary Calibration Ch 8 First Order Term	281	284	i	4	1	9
Primary Calibration Ch 8 Zeroth Order Term	285	288	i	4	1	6
Primary Calibration Ch 20 Second Order Term	289	292	i	4	1	12
Primary Calibration Ch 20 First Order Term	293	296	i	4	1	9
Primary Calibration Ch 20 Zeroth Order Term	297	300	i	4	1	6
Primary Calibration Ch 10 Second Order Term	301	304	i	4	1	12
Primary Calibration Ch 10 First Order Term	305	308	i	4	1	9
Primary Calibration Ch 10 Zeroth Order Term	309	312	i	4	1	6
Primary Calibration Ch 14 Second Order Term	313	316	i	4	1	12
Primary Calibration Ch 14 First Order Term	317	320	i	4	1	9
Primary Calibration Ch 14 Zeroth Order Term	321	324	i	4	1	6
Primary Calibration Ch 6 Second Order Term	325	328	i	4	1	12
Primary Calibration Ch 6 First Order Term	329	332	i	4	1	9
Primary Calibration Ch 6 Zeroth Order Term	333	336	i	4	1	6
Primary Calibration Ch 5 Second Order Term	337	340	i	4	1	12
Primary Calibration Ch 5 First Order Term	341	344	i	4	1	9
Primary Calibration Ch 5 Zeroth Order Term	345	348	i	4	1	6
Primary Calibration Ch 15 Second Order Term	349	352	i	4	1	12
Primary Calibration Ch 15 First Order Term	353	356	i	4	1	9
Primary Calibration Ch 15 Zeroth Order Term	357	360	i	4	1	6
Primary Calibration Ch 12 Second Order Term	361	364	i	4	1	12
Primary Calibration Ch 12 First Order Term	365	368	i	4	1	9
Primary Calibration Ch 12 Zeroth Order Term	369	372	i	4	1	6
Primary Calibration Ch 16 Second Order Term	373	376	i	4	1	12
Primary Calibration Ch 16 First Order Term	377	380	i	4	1	9
Primary Calibration Ch 16 Zeroth Order Term	381	384	i	4	1	6
Primary Calibration Ch 9 Second Order Term	385	388	i	4	1	12
Primary Calibration Ch 9 First Order Term	389	392	i	4	1	9
Primary Calibration Ch 9 Zeroth Order Term	393	396	i	4	1	6
Spare Calibration Ch 1 Second Order Term	397	400	i	4	1	12
Spare Calibration Ch 1 First Order Term	401	404	i	4	1	9
Spare Calibration Ch 1 Zeroth Order Term	405	408	i	4	1	6
Spare Calibration Ch 17 Second Order Term	409	412	i	4	1	12
Spare Calibration Ch 17 First Order Term	413	416	i	4	1	9
Spare Calibration Ch 17 Zeroth Order Term	417	420	i	4	1	6
Spare Calibration Ch 2 Second Order Term	421	424	i	4	1	12
Spare Calibration Ch 2 First Order Term	425	428	i	4	1	9
Spare Calibration Ch 2 Zeroth Order Term	429	432	i	4	1	6
Spare Calibration Ch 3 Second Order Term	433	436	i	4	1	12
Spare Calibration Ch 3 First Order Term	437	440	i	4	1	9
Spare Calibration Ch 3 Zeroth Order Term	441	444	i	4	1	6
Spare Calibration Ch 13 Second Order Term	445	448	i	4	1	12
Spare Calibration Ch 13 First Order Term	449	452	i	4	1	9
Spare Calibration Ch 13 Zeroth Order Term	453	456	i	4	1	6
Spare Calibration Ch 4 Second Order Term	457	460	i	4	1	12
Spare Calibration Ch 4 First Order Term	461	464	i	4	1	9
Spare Calibration Ch 4 Zeroth Order Term	465	468	i	4	1	6
Spare Calibration Ch 18 Second Order Term	469	472	i	4	1	12
Spare Calibration Ch 18 First Order Term	473	476	i	4	1	9
Spare Calibration Ch 18 Zeroth Order Term	477	480	i	4	1	6
Spare Calibration Ch 11 Second Order Term	481	484	i	4	1	12
Spare Calibration Ch 11 First Order Term	485	488	i	4	1	9
Spare Calibration Ch 11 Zeroth Order Term	489	492	i	4	1	6
Spare Calibration Ch 19 Second Order Term	493	496	i	4	1	12
Spare Calibration Ch 19 First Order Term	497	500	i	4	1	9
Spare Calibration Ch 19 Zeroth Order Term	501	504	i	4	1	6
Spare Calibration Ch 7 Second Order Term	505	508	i	4	1	12
Spare Calibration Ch 7 First Order Term	509	512	i	4	1	9
Spare Calibration Ch 7 Zeroth Order Term	513	516	i	4	1	6
Spare Calibration Ch 8 Second Order Term	517	520	i	4	1	12
Spare Calibration Ch 8 First Order Term	521	524	i	4	1	9
Spare Calibration Ch 8 Zeroth Order Term	525	528	i	4	1	6
Spare Calibration Ch 20 Second Order Term	529	532	i	4	1	12
Spare Calibration Ch 20 First Order Term	533	536	i	4	1	9
Spare Calibration Ch 20 Zeroth Order Term	537	540	i	4	1	6
Spare Calibration Ch 10 Second Order Term	541	544	i	4	1	12
Spare Calibration Ch 10 First Order Term	545	548	i	4	1	9
Spare Calibration Ch 10 Zeroth Order Term	549	552	i	4	1	6
Spare Calibration Ch 14 Second Order Term	553	556	i	4	1	12
Spare Calibration Ch 14 First Order Term	557	560	i	4	1	9
Spare Calibration Ch 14 Zeroth Order Term	561	564	i	4	1	6
Spare Calibration Ch 6 Second Order Term	565	568	i	4	1	12
Spare Calibration Ch 6 First Order Term	569	572	i	4	1	9
Spare Calibration Ch 6 Zeroth Order Term	573	576	i	4	1	6
Spare Calibration Ch 5 Second Order Term	577	580	i	4	1	12
Spare Calibration Ch 5 First Order Term	581	584	i	4	1	9
Spare Calibration Ch 5 Zeroth Order Term	585	588	i	4	1	6
Spare Calibration Ch 15 Second Order Term	589	592	i	4	1	12
Spare Calibration Ch 15 First Order Term	593	596	i	4	1	9
Spare Calibration Ch 15 Zeroth Order Term	597	600	i	4	1	6
Spare Calibration Ch 12 Second Order Term	601	604	i	4	1	12
Spare Calibration Ch 12 First Order Term	605	608	i	4	1	9
Spare Calibration Ch 12 Zeroth Order Term	609	612	i	4	1	6
Spare Calibration Ch 16 Second Order Term	613	616	i	4	1	12
Spare Calibration Ch 16 First Order Term	617	620	i	4	1	9
Spare Calibration Ch 16 Zeroth Order Term	621	624	i	4	1	6
Spare Calibration Ch 9 Second Order Term	625	628	i	4	1	12
Spare Calibration Ch 9 First Order Term	629	632	i	4	1	9
Spare Calibration Ch 9 Zeroth Order Term	633	636	i	4	1	6
NAVIGATION
<Zero Fill>	637	642	i	2	3	0	degrees
Total Applied Attitude Correction	643	648	i	2	3	3	degrees
Navigation Status Bit Field bits 31-18: <zero fill> bit 17: earth location at the satellite subpoint is accurate and reasonable, i.e., is within the tolerance defined by "Nadir Earth Location Tolerance" in header (0=out of tolerance; 1=in tolerance) bit 16: earth location corrected for Euler angles (0=FALSE; 1=TRUE) bits 15-12: earth location indicator (0=earth location available; 1=user ephemeris files greater than 24 hours old; 2=no earth location available) bits 11-8: spacecraft attitude control (0=operating in YGC or NOMINAL mode; 1=operating in another mode; 2=attitude exceeds nominal tolerance; 3=both 1 and 2) bits 7-4: attitude SMODE (0=nominal mode; 1=rate nulling mode; 2=YGC mode; 3=search mode; 4=coast mode) bits 3-0: attitude PWTIP$AC (0=nominal mode/no test; 1=yaw axis test in progress; 2=roll axis test in progress; 3=pitch axis test in progress)	649	652	u	4	1	0
Time Associated with Euler Angles (range: 0 - 4,294,967,295 (TBC))	653	656	i	4	1	0	seconds
Euler Angles Word 1: Roll Word 2: Pitch Word 3: Yaw	657	662	i	2	3	3	degrees
Spacecraft Altitude above Reference Ellipsoid	663	664	u	2	1	1	kilometers
Angular Relationships (relative azimuth range +/- 180.00 degrees) Word 1: Solar zenith angle, FOV 1 Word 2: Satellite zenith angle, FOV 1 Word 3: Relative azimuth angle, FOV 1 Word 4: Solar zenith angle, FOV 2 ... (set of 3 angles every FOV) ... Word 168: Relative azimuth angle, FOV 56	665	1000	i	2	168	2	degrees
Earth Location (north latitude and east longitude are positive) Word 1: Latitude, FOV 1 Word 2: Longitude, FOV 1 Word 3: Latitude, FOV 2 ... (lat/lon word pair every FOV) ... Word 112: Longitude, FOV 56	1001	1448	i	4	112	4	degrees
Lunar Angle (angle between moon and space view; only applicable for the space view scan, otherwise, undefined; range 0 to 180.0 degrees)	1449	1450	u	2	1	2	degrees
<Zero fill>	1451	1456	i	2	3	0		1
HIRS DATA ELEMENTS
Header for Element 0 (same format through element 63) bits 31-24: scan encoder position bits 23-19: electronic cal level indicator bits 18-13: <zero fill> bits 12-7: channel 1 period monitor bits 6-1: element number bit 0: filter sync designator	1457	1460	u	4	1	0
Radiometric Data for Element 0 (same format through element 55) Word 1: Channel 1 bits 15-13: <zero fill> bits 12-0: 13-bit data Words 2-20: Channels 17, 2, 3, 13, 4, 18, 11, 19, 7, 8, 20, 10, 14, 6, 5, 15, 12, 16, 9 (in order)	1461	1500	u	2	20	0	counts	2
Bit Flags for Element 0 (same format through element 63) bit 15: valid data flag (0=ignore data; 1=good data) bit 14: odd bit parity bits 13-0: <zero fill>	1501	1502	u	2	1	0
<Zero Fill>	1503	1504	i	2	1	0
Header for Element 1	1505	1508	u	4	1	0
Radiometric Data for Element 1	1509	1548	u	2	20	0	counts
Bit Flags for Element 1	1549	1550	u	2	1	0
<Zero Fill>	1551	1552	i	2	1	0
Header for Element 2	1553	1556	u	4	1	0
Radiometric Data for Element 2	1557	1596	u	2	20	0	counts
Bit Flags for Element 2	1597	1598	u	2	1	0
<Zero Fill>	1599	1600	i	2	1	0
Header for Element 3	1601	1604	u	4	1	0
Radiometric Data for Element 3	1605	1644	u	2	20	0	counts
Bit Flags for Element 3	1645	1646	u	2	1	0
<Zero Fill>	1647	1648	i	2	1	0
Header for Element 4	1649	1652	u	4	1	0
Radiometric Data for Element 4	1653	1692	u	2	20	0	counts
Bit Flags for Element 4	1693	1694	u	2	1	0
<Zero Fill>	1695	1696	i	2	1	0
Header for Element 5	1697	1700	u	4	1	0
Radiometric Data for Element 5	1701	1740	u	2	20	0	counts
Bit Flags for Element 5	1741	1742	u	2	1	0
<Zero Fill>	1743	1744	i	2	1	0
Header for Element 6	1745	1748	u	4	1	0
Radiometric Data for Element 6	1749	1788	u	2	20	0	counts
Bit Flags for Element 6	1789	1790	u	2	1	0
<Zero Fill>	1791	1792	i	2	1	0
Header for Element 7	1793	1796	u	4	1	0
Radiometric Data for Element 7	1797	1836	u	2	20	0	counts
Bit Flags for Element 7	1837	1838	u	2	1	0
<Zero Fill>	1839	1840	i	2	1	0
Header for Element 8	1841	1844	u	4	1	0
Radiometric Data for Element 8	1845	1884	u	2	20	0	counts
Bit Flags for Element 8	1885	1886	u	2	1	0
<Zero Fill>	1887	1888	i	2	1	0
Header for Element 9	1889	1892	u	4	1	0
Radiometric Data for Element 9	1893	1932	u	2	20	0	counts
Bit Flags for Element 9	1933	1934	u	2	1	0
<Zero Fill>	1935	1936	i	2	1	0
Header for Element 10	1937	1940	u	4	1	0
Radiometric Data for Element 10	1941	1980	u	2	20	0	counts
Bit Flags for Element 10	1981	1982	u	2	1	0
<Zero Fill>	1983	1984	i	2	1	0
Header for Element 11	1985	1988	u	4	1	0
Radiometric Data for Element 11	1989	2028	u	2	20	0	counts
Bit Flags for Element 11	2029	2030	u	2	1	0
<Zero Fill>	2031	2032	i	2	1	0
Header for Element 12	2033	2036	u	4	1	0
Radiometric Data for Element 12	2037	2076	u	2	20	0	counts
Bit Flags for Element 12	2077	2078	u	2	1	0
<Zero Fill>	2079	2080	i	2	1	0
Header for Element 13	2081	2084	u	4	1	0
Radiometric Data for Element 13	2085	2124	u	2	20	0	counts
Bit Flags for Element 13	2125	2126	u	2	1	0
<Zero Fill>	2127	2128	i	2	1	0
Header for Element 14	2129	2132	u	4	1	0
Radiometric Data for Element 14	2133	2172	u	2	20	0	counts
Bit Flags for Element 14	2173	2174	u	2	1	0
<Zero Fill>	2175	2176	i	2	1	0
Header for Element 15	2177	2180	u	4	1	0
Radiometric Data for Element 15	2181	2220	u	2	20	0	counts
Bit Flags for Element 15	2221	2222	u	2	1	0
<Zero Fill>	2223	2224	i	2	1	0
Header for Element 16	2225	2228	u	4	1	0
Radiometric Data for Element 16	2229	2268	u	2	20	0	counts
Bit Flags for Element 16	2269	2270	u	2	1	0
<Zero Fill>	2271	2272	i	2	1	0
Header for Element 17	2273	2276	u	4	1	0
Radiometric Data for Element 17	2277	2316	u	2	20	0	counts
Bit Flags for Element 17	2317	2318	u	2	1	0
<Zero Fill>	2319	2320	i	2	1	0
Header for Element 18	2321	2324	u	4	1	0
Radiometric Data for Element 18	2325	2364	u	2	20	0	counts
Bit Flags for Element 18	2365	2366	u	2	1	0
<Zero Fill>	2367	2368	i	2	1	0
Header for Element 19	2369	2372	u	4	1	0
Radiometric Data for Element 19	2373	2412	u	2	20	0	counts
Bit Flags for Element 19	2413	2414	u	2	1	0
<Zero Fill>	2415	2416	i	2	1	0
Header for Element 20	2417	2420	u	4	1	0
Radiometric Data for Element 20	2421	2460	u	2	20	0	counts
Bit Flags for Element 20	2461	2462	u	2	1	0
<Zero Fill>	2463	2464	i	2	1	0
Header for Element 21	2465	2468	u	4	1	0
Radiometric Data for Element 21	2469	2508	u	2	20	0	counts
Bit Flags for Element 21	2509	2510	u	2	1	0
<Zero Fill>	2511	2512	i	2	1	0
Header for Element 22	2513	2516	u	4	1	0
Radiometric Data for Element 22	2517	2556	u	2	20	0	counts
Bit Flags for Element 22	2557	2558	u	2	1	0
<Zero Fill>	2559	2560	i	2	1	0
Header for Element 23	2561	2564	u	4	1	0
Radiometric Data for Element 23	2565	2604	u	2	20	0	counts
Bit Flags for Element 23	2605	2606	u	2	1	0
<Zero Fill>	2607	2608	i	2	1	0
Header for Element 24	2609	2612	u	4	1	0
Radiometric Data for Element 24	2613	2652	u	2	20	0	counts
Bit Flags for Element 24	2653	2654	u	2	1	0
<Zero Fill>	2655	2656	i	2	1	0
Header for Element 25	2657	2660	u	4	1	0
Radiometric Data for Element 25	2661	2700	u	2	20	0	counts
Bit Flags for Element 25	2701	2702	u	2	1	0
<Zero Fill>	2703	2704	i	2	1	0
Header for Element 26	2705	2708	u	4	1	0
Radiometric Data for Element 26	2709	2748	u	2	20	0	counts
Bit Flags for Element 26	2749	2750	u	2	1	0
<Zero Fill>	2751	2752	i	2	1	0
Header for Element 27	2753	2756	u	4	1	0
Radiometric Data for Element 27	2757	2796	u	2	20	0	counts
Bit Flags for Element 27	2797	2798	u	2	1	0
<Zero Fill>	2799	2800	i	2	1	0
Header for Element 28	2801	2804	u	4	1	0
Radiometric Data for Element 28	2805	2844	u	2	20	0	counts
Bit Flags for Element 28	2845	2846	u	2	1	0
<Zero Fill>	2847	2848	i	2	1	0
Header for Element 29	2849	2852	u	4	1	0
Radiometric Data for Element 29	2853	2892	u	2	20	0	counts
Bit Flags for Element 29	2893	2894	u	2	1	0
<Zero Fill>	2895	2896	i	2	1	0
Header for Element 30	2897	2900	u	4	1	0
Radiometric Data for Element 30	2901	2940	u	2	20	0	counts
Bit Flags for Element 30	2941	2942	u	2	1	0
<Zero Fill>	2943	2944	i	2	1	0
Header for Element 31	2945	2948	u	4	1	0
Radiometric Data for Element 31	2949	2988	u	2	20	0	counts
Bit Flags for Element 31	2989	2990	u	2	1	0
<Zero Fill>	2991	2992	i	2	1	0
Header for Element 32	2993	2996	u	4	1	0
Radiometric Data for Element 32	2997	3036	u	2	20	0	counts
Bit Flags for Element 33	3037	3038	u	2	1	0
<Zero Fill>	3039	3040	i	2	1	0
Header for Element 33	3041	3044	u	4	1	0
Radiometric Data for Element 33	3045	3084	u	2	20	0	counts
Bit Flags for Element 33	3085	3086	u	2	1	0
<Zero Fill>	3087	3088	i	2	1	0
Header for Element 34	3089	3092	u	4	1	0
Radiometric Data for Element 34	3093	3132	u	2	20	0	counts
Bit Flags for Element 34	3133	3134	u	2	1	0
<Zero Fill>	3135	3136	i	2	1	0
Header for Element 35	3137	3140	u	4	1	0
Radiometric Data for Element 35	3141	3180	u	2	20	0	counts
Bit Flags for Element 35	3181	3182	u	2	1	0
<Zero Fill>	3183	3184	i	2	1	0
Header for Element 36	3185	3188	u	4	1	0
Radiometric Data for Element 36	3189	3228	u	2	20	0	counts
Bit Flags for Element 36	3229	3230	u	2	1	0
<Zero Fill>	3231	3232	i	2	1	0
Header for Element 37	3233	3236	u	4	1	0
Radiometric Data for Element 37	3237	3276	u	2	20	0	counts
Bit Flags for Element 37	3277	3278	u	2	1	0
<Zero Fill>	3279	3280	i	2	1	0
Header for Element 38	3281	3284	u	4	1	0
Radiometric Data for Element 38	3285	3324	u	2	20	0	counts
Bit Flags for Element 38	3325	3326	u	2	1	0
<Zero Fill>	3327	3328	i	2	1	0
Header for Element 39	3329	3332	u	4	1	0
Radiometric Data for Element 39	3333	3372	u	2	20	0	counts
Bit Flags for Element 39	3373	3374	u	2	1	0
<Zero Fill>	3375	3376	i	2	1	0
Header for Element 40	3377	3380	u	4	1	0
Radiometric Data for Element 40	3381	3420	u	2	20	0	counts
Bit Flags for Element 40	3421	3422	u	2	1	0
<Zero Fill>	3423	3424	i	2	1	0
Header for Element 41	3425	3428	u	4	1	0
Radiometric Data for Element 41	3429	3468	u	2	20	0	counts
Bit Flags for Element 41	3469	3470	u	2	1	0
<Zero Fill>	3471	3472	i	2	1	0
Header for Element 42	3473	3476	u	4	1	0
Radiometric Data for Element 42	3477	3516	u	2	20	0	counts
Bit Flags for Element 42	3517	3518	u	2	1	0
<Zero Fill>	3519	3520	i	2	1	0
Header for Element 43	3521	3524	u	4	1	0
Radiometric Data for Element 43	3525	3564	u	2	20	0	counts
Bit Flags for Element 43	3565	3566	u	2	1	0
<Zero Fill>	3567	3568	i	2	1	0
Header for Element 44	3569	3572	u	4	1	0
Radiometric Data for Element 44	3573	3612	u	2	20	0	counts
Bit Flags for Element 44	3613	3614	u	2	1	0
<Zero Fill>	3615	3616	i	2	1	0
Header for Element 45	3617	3620	u	4	1	0
Radiometric Data for Element 45	3621	3660	u	2	20	0	counts
Bit Flags for Element 45	3661	3662	u	2	1	0
<Zero Fill>	3663	3664	i	2	1	0
Header for Element 46	3665	3668	u	4	1	0
Radiometric Data for Element 46	3669	3708	u	2	20	0	counts
Bit Flags for Element 46	3709	3710	u	2	1	0
<Zero Fill>	3711	3712	i	2	1	0
Header for Element 47	3713	3716	u	4	1	0
Radiometric Data for Element 47	3717	3756	u	2	20	0	counts
Bit Flags for Element 47	3757	3758	u	2	1	0
<Zero Fill>	3759	3760	i	2	1	0
Header for Element 48	3761	3764	u	4	1	0
Radiometric Data for Element 48	3765	3804	u	2	20	0	counts
Bit Flags for Element 48	3805	3806	u	2	1	0
<Zero Fill>	3807	3808	i	2	1	0
Header for Element 49	3809	3812	u	4	1	0
Radiometric Data for Element 49	3813	3852	u	2	20	0	counts
Bit Flags for Element 49	3853	3854	u	2	1	0
<Zero Fill>	3855	3856	i	2	1	0
Header for Element 50	3857	3860	u	4	1	0
Radiometric Data for Element 50	3861	3900	u	2	20	0	counts
Bit Flags for Element 50	3901	3902	u	2	1	0
<Zero Fill>	3903	3904	i	2	1	0
Header for Element 51	3905	3908	u	4	1	0
Radiometric Data for Element 51	3909	3948	u	2	20	0	counts
Bit Flags for Element 51	3949	3950	u	2	1	0
<Zero Fill>	3951	3952	i	2	1	0
Header for Element 52	3953	3956	u	4	1	0
Radiometric Data for Element 52	3957	3996	u	2	20	0	counts
Bit Flags for Element 52	3997	3998	u	2	1	0
<Zero Fill>	3999	4000	i	2	1	0
Header for Element 53	4001	4004	u	4	1	0
Radiometric Data for Element 53	4005	4044	u	2	20	0	counts
Bit Flags for Element 53	4045	4046	u	2	1	0
<Zero Fill>	4047	4048	i	2	1	0
Header for Element 54	4049	4052	u	4	1	0
Radiometric Data for Element 54	4053	4092	u	2	20	0	counts
Bit Flags for Element 54	4093	4094	u	2	1	0
<Zero Fill>	4095	4096	i	2	1	0
Header for Element 55	4097	4100	u	4	1	0
Radiometric Data for Element 55	4101	4140	u	2	20	0	counts
Bit Flags for Element 55	4141	4142	u	2	1	0
<Zero Fill>	4143	4144	i	2	1	0
Header for Element 56	4145	4148	u	4	1	0
Positive Calibration Word 1: Channel 1 Words 2-20: Channels 17, 2, 3, 13, 4, 18, 11, 19, 7, 8, 20, 10, 14, 6, 5, 15, 12, 16, 9 (in order)	4149	4188	u	2	20	0	counts
Bit Flags for Element 56	4189	4190	u	2	1	0
<Zero Fill>	4191	4192	i	2	1	0
Header for Element 57	4193	4196	u	4	1	0
Negative Calibration Word 1: Channel 1 Words 2-20: Channels 17, 2, 3, 13, 4, 18, 11, 19, 7, 8, 20, 10, 14, 6, 5, 15, 12, 16, 9 (in order)	4197	4236	u	2	20	0	counts
Bit Flags for Element 57	4237	4238	u	2	1	0
<Zero Fill>	4239	4240	i	2	1	0
Header for Element 58	4241	4244	u	4	1	0
Internal Warm Target, Temperature Sensor #1 (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4245	4254	i	2	5	0	counts
Internal Warm Target, Temperature Sensor #2 (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4255	4264	i	2	5	0	counts
Internal Warm Target, Temperature Sensor #3 (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4265	4274	i	2	5	0	counts
Internal Warm Target, Temperature Sensor #4 (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4275	4284	i	2	5	0	counts
Bit Flags for Element 58	4285	4286	u	2	1	0
<Zero Fill>	4287	4288	i	2	1	0
Header for Element 59	4289	4292	u	4	1	0
Internal Cold Target, Temperature Sensor #1 (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4293	4302	i	2	5	0	counts
Internal Cold Target, Temperature Sensor #2 (NOAA KLM) Analog Ground 3 (NOAA-N,-N') (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4303	4312	i	2	5	0	counts
Internal Cold Target, Temperature Sensor #3 (NOAA KLM) Internal Warm Target, Temperature Sensor #5 (NOAA-N,-N') (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4313	4322	i	2	5	0	counts
Internal Cold Target, Temperature Sensor #4 (NOAA KLM) Tertiary Telescope Temperature Sensor (NOAA-N,-N') (zero fill in commanded position modes) Word 1: Reading 1 ... Word 5: Reading 5	4323	4332	i	2	5	0	counts
Bit Flags for Element 59	4333	4334	u	2	1	0
<Zero Fill>	4335	4336	i	2	1	0
Header for Element 60	4337	4340	u	4	1	0
Filter Wheel Housing, Temperature Sensor #1 Word 1: Reading 1 ... Word 5: Reading 5	4341	4350	i	2	5	0	counts
Filter Wheel Housing, Temperature Sensor #2 Word 1: Reading 1 ... Word 5: Reading 5	4351	4360	i	2	5	0	counts
Filter Wheel Housing, Temperature Sensor #3 Word 1: Reading 1 ... Word 5: Reading 5	4361	4370	i	2	5	0	counts
Filter Wheel Housing, Temperature Sensor #4 Word 1: Reading 1 ... Word 5: Reading 5	4371	4380	i	2	5	0	counts
Bit Flags for Element 60	4381	4382	u	2	1	0
<Zero Fill>	4383	4384	i	2	1	0
Header for Element 61	4385	4388	u	4	1	0
Patch Temperature (Expanded Scale) Word 1: Reading 1 ... Word 5: Reading 5	4389	4398	i	2	5	0	counts
First Stage Radiator Temperature Sensor Word 1: Reading 1 ... Word 5: Reading 5	4399	4408	i	2	5	0	counts
Filter Wheel Housing Heater Current Word 1: Reading 1 ... Word 5: Reading 5	4409	4418	i	2	5	0	counts
Electronic Calibration Digital to Analog Converter Word 1: Reading 1 ... Word 5: Reading 5	4419	4428	i	2	5	0	counts
Bit Flags for Element 61	4429	4430	u	2	1	0
<Zero Fill>	4431	4432	i	2	1	0
Header for Element 62	4433	4436	u	4	1	0
Scan Mirror Temperature	4437	4438	i	2	1	0	counts
Primary Telescope Temperature	4439	4440	i	2	1	0	counts
Secondary Telescope Temperature	4441	4442	i	2	1	0	counts
Baseplate Temperature	4443	4444	i	2	1	0	counts
Electronics Temperature	4445	4446	i	2	1	0	counts
Patch Temperature Full Range	4447	4448	i	2	1	0	counts
Scan Motor Temperature	4449	4450	i	2	1	0	counts
Filter Wheel Motor Temperature	4451	4452	i	2	1	0	counts
Cooler Housing Temperature	4453	4454	i	2	1	0	counts
Patch Control Power	4455	4456	i	2	1	0	counts
Scan Motor Current	4457	4458	i	2	1	0	counts
Filter Motor Current	4459	4460	i	2	1	0	counts
+15 VDC	4461	4462	i	2	1	0	counts
-15 VDC	4463	4464	i	2	1	0	counts
+7.5 VDC	4465	4466	i	2	1	0	counts
-7.5 VDC	4467	4468	i	2	1	0	counts
+10 VDC	4469	4470	i	2	1	0	counts
+5 VDC	4471	4472	i	2	1	0	counts
Analog Ground 1	4473	4474	i	2	1	0	counts
Analog Ground 2	4475	4476	i	2	1	0	counts
Bit Flags for Element 62	4477	4478	u	2	1	0
<Zero Fill>	4479	4480	i	2	1	0
Header for Element 63	4481	4484	u	4	1	0
Line Counter (number of lines from the last auto calibration sequence)	4485	4486	u	2	1	0
First Status Word bits 15-13: <zero fill> bits 12-8: instrument serial number bit 7: instrument (0=off; 1=on) bit 6: scan motor (0=on; 1=off) bit 5: filter wheel (0=on; 1=off) bit 4: electronics (0=off; 1=on) bit 3: cooler heat (0=on; 1=off) bit 2: internal warm target position (0=true; 1=false) bit 1: internal cold target position (0=true; 1=false) bit 0: space position (0=true; 1=false)	4487	4488	u	2	1	0
Second Status Word bits 15-8: <zero fill> bit 7: nadir position (0=true; 1=false) bit 6: calibration (0=enabled; 1=disabled) bit 5: cooler door release (0=enabled; 1=disabled) bit 4: cooler door open (0=no; 1=yes) bit 3: cooler door closed (0=no; 1=yes) bit 2: filter housing heat (0=on; 1=off) bit 1: patch temperature control (0=on; 1=off) bit 0: filter motor power (0=high; 1=normal)	4489	4490	u	2	1	0
Data Verification Binary Code Words 1-17: +3875, +1443, -1522, -1882, -1631, -1141, +1125, +3655, -2886, -3044, -3764, -3262, -2283, -2251, +3214, +1676, +1992	4491	4524	u	2	17	0
Bit Flags for Element 63	4525	4526	u	2	1	0
<Zero Fill>	4527	4540	i	2	7	0
DIGITAL B HOUSEKEEPING TELEMETRY
Digital B Telemetry Update Flags (If bit = 0, associated telemetry item is up-to-date. If bit = 1, associated telemetry item was not updated during most recent telemetry cycle - possibly due to lost frame.) bit 15: instrument power bit 14: electronics power bit 13: filter motor power bit 12: scan motor power bit 11: cooler heater bit 10: filter housing heater bit 9: cooler door release bit 8: cooler window heater bit 7: go to nadir position bit 6: calibration sequence bit 5: cooler door closed bit 4: cooler door fully open bit 3: filter motor power level bit 2: patch temperature controller bits 1-0: <zero fill>	4541	4542	u	2	1	0
Digital B Data bit 15: instrument power (0=off; 1=on) bit 14: electronics power (0=off; 1=on) bit 13: filter motor power (0=off; 1=on) bit 12: scan motor power (0=off; 1=on) bit 11: cooler heater (0=off; 1=on) bit 10: filter housing heater (0=off; 1=on) bit 9: cooler door release (0=disabled; 1=enabled) bit 8: cooler window heater (0=on; 1=off) bit 7: go to nadir position (0=no; 1=yes/initiated) bit 6: calibration sequence (0=disabled; 1=enabled) bit 5: cooler door closed (0=yes; 1=no) bit 4: cooler door fully open (0=yes; 1=no) bit 3: filter motor power level (0=normal; 1=high) bit 2: patch temperature controller (0=off; 1=on) bits 1-0: <zero fill>	4543	4544	u	2	1	0
ANALOG HOUSEKEEPING TELEMETRY
Analog Telemetry Update Flags (If bit = 0, associated telemetry item is up-to-date. If bit = 1, associated telemetry item was not updated during most recent telemetry cycle - possibly due to lost frame.) bits 31-17: <zero fill> bit 16: patch controller power bit 15: scan motor current bit 14: filter wheel motor current bit 13: -15 VDC monitor bit 12: +15 VDC monitor bit 11: -7.5 VDC TLM/DC/DC conv. bit 10: +7.5 VDC TLM/DC/DC conv. bit 9: +10V VDC TLM/DC/DC conv. bit 8: +5 VDC monitor bit 7: filter wheel motor temperature bit 6: scan motor temperature bit 5: filter housing controller current bit 4: patch temperature bit 3: electronics temperature bit 2: base plate temperature bit 1: radiator temperature bit 0: <zero fill>	4545	4548	u	4	1	0
Radiator Temperature (range: 0 - 255)	4549	4549	u	1	1	0	counts
Base Plate Temperature (range: 0 - 255)	4550	4550	u	1	1	0	counts
Electronics Temperature (range: 0 - 255)	4551	4551	u	1	1	0	counts
Patch Temperature (range: 0 - 255)	4552	4552	u	1	1	0	counts
Filter Housing Controller Current (range: 0 - 255)	4553	4553	u	1	1	0	counts
Scan Motor Temperature (range: 0 - 255)	4554	4554	u	1	1	0	counts
Filter Wheel Motor Temperature (range: 0 - 255)	4555	4555	u	1	1	0	counts
+5 VDC Monitor (range: 0 - 255)	4556	4556	u	1	1	0	counts
+10V VDC TLM/DC/DC Conv. (range: 0 - 255)	4557	4557	u	1	1	0	counts
+7.5 VDC TLM/DC/DC Conv. (range: 0 - 255)	4558	4558	u	1	1	0	counts
-7.5 VDC TLM/DC/DC Conv. (range: 0 - 255)	4559	4559	u	1	1	0	counts
+15 VDC Monitor (range: 0 - 255)	4560	4560	u	1	1	0	counts
-15 VDC Monitor (range: 0 - 255)	4561	4561	u	1	1	0	counts
Filter Wheel Motor Current (range: 0 - 255)	4562	4562	u	1	1	0	counts
Scan Motor Current (range: 0 - 255)	4563	4563	u	1	1	0	counts
Patch Controller Power (range: 0 - 255)	4564	4564	u	1	1	0	counts
FILLER
<Zero Fill>	4565	4608	i	4	11	0
NOTES: 1) The interpretation of the HIRS data is dependent on the element in which it resides. Each 13-bit HIRS word in the 56 FOVs (elements 0-55) is stored in the least significant 13 bits of a 2-byte word. Therefore, bits 15-13 are zero fill, bit 12 is the HIRS inverted sign bit, and bits 11-0 is the radiant signal amplitude. However, if the HIRS word is negative, bits 11-0 are in a "two's complement-like" form (see description in "Radiometric Data for Element 0"). Each 13-bit HIRS word in the remaining 8 elements (56-63) that represents a value (i.e., not packed bit flags and fields) is "unpacked" into a 2-byte word. Therefore, bit 15 is the sign bit (not inverted) and bits 14-0 is the magnitude of the value (in two's complement form if the value is negative). 2) To unpack a channel's 2-byte, radiometric reading, subtract 4,096 from it--i.e., "u = p - 4096", where 'p' is the channel's reading as stored in the Level 1b (described below), and 'u' is the unpacked reading. 3) Anomalous is defined as the absolute value (mean - median) > NEDC where mean and median are after 3 sigma filtering. The channel calibration quality flags for earth views for each channel will be inherited from the flags in the space and blackbody view scan lines. 4) This is triggered if bit 4, 3, or 0 in channel calibration quality flag is set for any IR channel.

Amended April 19, 2004

Amended January 6, 2005

Amended April 12, 2005

Amended May 4, 2005

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