SEPTEMBER 2025 GDAS DATA DUMPS (RECEIVED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number	Total Input	% Input
Land Sfc	Synoptic	6163	6757	6970	6499	26389	26389	*
*	METAR	46375	48066	49456	47147	191044	191044	*
*	sub-total	52538	54823	56426	53646	217433	217433	****
Marine Sfc	Ship	200	179	161	193	733	733	*
*	Drifting Buoy	32	38	33	36	139	139	*
*	Moored Buoy	736	735	738	738	2947	2947	*
*	CMAN	474	471	477	474	1896	1896	*
*	Tide Gauge	5524	5460	5598	5655	22237	22237	*
*	MSLP Bogus**	0	0	0	0	0	*	*
*	sub-total	6966	6883	7007	7096	27952	27952	****
Land Soundings	Fixed Land RAOB	573	47	534	45	1199	1199	*
*	Mobile Land RAOB	0	0	0	0	0	0	*
*	Ship RAOB	0	1	3	0	4	4	*
*	Dropsonde	9	6	7	8	30	30	*
*	Pibal	28	16	15	18	77	77	*
*	Profiler	0	1	0	1	2	2	*
*	NEXRAD Wind	0	0	0	0	0	0	*
*	sub-total	610	71	559	72	1312	1312	****
Aircraft	AIREP	3181	5294	5425	3386	17286	17286	*
*	PIREP	732	114	720	1128	2694	2694	*
*	AMDAR	4669	5368	3182	834	14053	14053	*
*	ACARS	204064	80219	128836	215847	628966	628966	*
*	RECCO	2	1	1	3	7	7	*
*	sub-total	212648	90996	138164	221198	663006	663006	****
Total	non-satellite	272762	152773	202156	282012	909703	909703	****

**    Data is not used or included in totals.
***   Data is now dumped from BUFR database. Previous numbers reflected thinning, which is now all done in the analysis.
****  % Input is no longer available due innacuracy and ambiguity.

SEPTEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE RECEIVED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3628308	2109113	2597269	4588491	12923181
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	832825	815531	861833	826455	3336644
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	4004036	2952061	3425409	3046579	13428085
*	AMSUB 1B
*	MHS	5697278	5616775	5424189	5667649	22405891
*	AIRS
*	ABI	32865431	30458346	30455915	33292813	127072505
*	AHI	3096679	3038233	2973724	3024548	12133184
*	ATMS	1869555	1869742	1869785	1870141	7479223
*	AVHRR	2860087	2887061	2912945	2888956	11549049
*	CRIS-FSR	786191899	874682405	834045771	858706772	3353626847
*	IASI	744783198	533898165	678352505	619256628	2576290496
*	OMPSLP	64299	64478	69039	66756	264572
*	OMPSNP	73785	76425	75871	74968	301049
*	OMPSTC8	2013437	2081171	2068034	2042007	8204649
*	SSMIS	19269531	8150307	14218553	19643999	61282390
*	VIIRS-M	218336319	175643082	226960961	184609167	805549529
*	VIIRS-M	218336319	175643082	226960961	184609167	805549529
Total	Satellites Received	1825586667	1644342895	1806311803	1739605929	7015847294

** Counts include AMSU-A radiances from the AQUA satellite .

SEPTEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE SELECTED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3628308	2109113	2597269	4588491	12923181
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	814599	796408	842570	808139	3261716
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	245731	239551	232493	243345	961120
*	AMSUB 1B
*	MHS	92668	91023	87961	92274	363926
*	AIRS
*	ABI	77469	71953	72663	78064	300149
*	AHI	43931	43734	43590	43491	174746
*	ATMS	694896	694679	693615	693863	2777053
*	AVHRR	162478	163306	159782	153259	638825
*	CRIS-FSR	10758159	10724443	10824942	10810782	43118326
*	IASI	12392247	11886094	11569249	12320581	48168171
*	OMPSLP	64299	64478	69039	66756	264572
*	OMPSNP	60605	61372	52874	58503	233354
*	OMPSTC8	19128	19318	19395	19311	77152
*	SSMIS	248451	116967	177536	248154	791108
*	VIIRS-M	479942	429263	507743	439870	1856818
*	VIIRS-M	479942	429263	507743	439870	1856818
Total	Satellites Selected	29782911	27511702	27950721	30664883	115910217

** Counts include AMSU-A radiances from the AQUA satellite .

SEPTEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE ASSIMILATED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3628308	2109113	2597269	4588491	12923181
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	595462	581336	613339	586985	2377122
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	159294	155483	152498	157790	625065
*	AMSUB 1B
*	MHS	55299	54719	52187	55612	217817
*	AIRS
*	ABI	19850	18148	18319	19763	76080
*	AHI	11591	11445	11355	11242	45633
*	ATMS	516693	495482	511667	487296	2011138
*	AVHRR	118650	128941	119786	117081	484458
*	CRIS-FSR	1039298	994415	1058202	992601	4084516
*	IASI	1984751	1964192	1844511	2080480	7873934
*	OMPSLP	0	0	0	0	0
*	OMPSNP	57849	58541	50408	55841	222639
*	OMPSTC8	18251	18444	18522	18441	73658
*	SSMIS	31595	16738	19378	30660	98371
*	VIIRS-M	183998	144441	210451	146295	685185
*	VIIRS-M	183998	144441	210451	146295	685185
Total	Satellites Assimilated	8420889	6751438	7277892	9348578	31798797

** Counts include AMSU-A radiances from the AQUA satellite .