DECEMBER 2025 GDAS DATA DUMPS (RECEIVED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number	Total Input	% Input
Land Sfc	Synoptic	6546	6999	7124	6808	27477	27477	*
*	METAR	47693	49107	50194	49089	196083	196083	*
*	sub-total	54239	56106	57318	55897	223560	223560	****
Marine Sfc	Ship	181	168	169	184	702	702	*
*	Drifting Buoy	28	36	30	34	128	128	*
*	Moored Buoy	663	661	660	665	2649	2649	*
*	CMAN	472	479	481	481	1913	1913	*
*	Tide Gauge	4607	4596	4599	4620	18422	18422	*
*	MSLP Bogus**	0	0	0	0	0	*	*
*	sub-total	5951	5940	5939	5984	23814	23814	****
Land Soundings	Fixed Land RAOB	560	31	525	41	1157	1157	*
*	Mobile Land RAOB	1	0	1	1	3	3	*
*	Ship RAOB	0	0	2	0	2	2	*
*	Dropsonde	4	0	0	0	4	4	*
*	Pibal	27	19	16	15	77	77	*
*	Profiler	0	1	0	1	2	2	*
*	NEXRAD Wind	0	0	0	0	0	0	*
*	sub-total	592	51	544	58	1245	1245	****
Aircraft	AIREP	1898	3995	3589	3039	12521	12521	*
*	PIREP	1160	273	808	1584	3825	3825	*
*	AMDAR	4136	4726	2681	855	12398	12398	*
*	ACARS	199835	106703	98761	195694	600993	600993	*
*	RECCO	0	0	0	0	0	0	*
*	sub-total	207029	115697	105839	201172	629737	629737	****
Total	non-satellite	267811	177794	169640	263111	878356	878356	****

**    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.

DECEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE RECEIVED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3359736	2049909	2524989	4007673	11942307
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	989347	974804	1036796	995002	3995949
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	3669248	2856522	3367360	2811353	12704483
*	AMSUB 1B
*	MHS	5753250	5738955	5771170	5686131	22949506
*	AIRS
*	ABI	32146558	29324287	29007960	32345269	122824074
*	AHI	3050407	2970381	2888883	2943454	11853125
*	ATMS	1869872	1869988	1870055	1869962	7479877
*	AVHRR	3051652	3184244	2536337	2829033	11601266
*	CRIS-FSR	788955565	882312863	830866979	846325183	3348460590
*	IASI	697701848	542147700	667799062	601232035	2508880645
*	OMPSLP	129880	132918	132297	132819	527914
*	OMPSNP	74031	76511	75997	75105	301644
*	OMPSTC8	2018264	2088779	2068700	2058568	8234311
*	SSMIS	21340013	15302870	12635758	19019041	68297682
*	VIIRS-M	187001597	177194298	199433168	182370423	745999486
*	VIIRS-M	187001597	177194298	199433168	182370423	745999486
Total	Satellites Received	1751111268	1668225029	1762015511	1704701051	6886052859

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

DECEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE SELECTED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3359736	2049909	2524989	4007673	11942307
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	968524	952628	1014245	972380	3907777
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	248990	246074	248495	245340	988899
*	AMSUB 1B
*	MHS	93629	93158	93427	92680	372894
*	AIRS
*	ABI	77212	71531	71802	78341	298886
*	AHI	43025	42370	41734	42066	169195
*	ATMS	694433	695061	695910	695425	2780829
*	AVHRR	151836	155616	144794	148426	600672
*	CRIS-FSR	10820298	10810143	10822657	10813353	43266451
*	IASI	12485269	12272517	12434575	12387835	49580196
*	OMPSLP	129880	132918	132297	132819	527914
*	OMPSNP	60296	61783	58341	59447	239867
*	OMPSTC8	18548	18728	18775	18745	74796
*	SSMIS	251486	181887	169689	233114	836176
*	VIIRS-M	449102	421738	475229	429914	1775983
*	VIIRS-M	449102	421738	475229	429914	1775983
Total	Satellites Selected	29852264	28206061	28946959	30357558	117362842

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

DECEMBER 2025 GDAS SATELLITE DATA DUMPS (DAILY AVERAGE ASSIMILATED)

Category	Subcategory	T00Z	T06Z	T12Z	T18Z	Total Number
Satellite Soundings	GOES
Ozone	OZONE
Satellite Winds	SATWND	3359736	2049909	2524989	4007673	11942307
Scatterometer Winds	QUIKSCAT	0	0	0	0	0
DMSP	SSMI RADIANCES
*	SSMI RAINFALL RATES
Cosmic/gps	COSMIC	710116	700393	751991	712535	2875035
Satellite Surface	NASA TRMM DATA
Satellite Radiances	HIRS3 1B
*	HIRS4 1B
*	AMSUA 1B**	156590	154849	156626	154540	622605
*	AMSUB 1B
*	MHS	53034	54958	54159	54595	216746
*	AIRS
*	ABI	19477	17627	17531	19498	74133
*	AHI	10745	10500	10305	10321	41871
*	ATMS	501161	483816	504104	476319	1965400
*	AVHRR	110916	124365	104563	114822	454666
*	CRIS-FSR	986767	967955	997301	961566	3913589
*	IASI	1941236	1985495	1913257	2007380	7847368
*	OMPSLP	0	0	0	0	0
*	OMPSNP	57548	58934	55522	56604	228608
*	OMPSTC8	17706	17878	17933	17903	71420
*	SSMIS	29771	19425	19997	27200	96393
*	VIIRS-M	168649	122015	187657	155273	633594
*	VIIRS-M	168649	122015	187657	155273	633594
Total	Satellites Assimilated	8123452	6768119	7315935	8776229	30983735

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