1998 NSSDC Annual Report: Tables

Table 1.
Counts of NSSDC Data Sets and Data Set Sources as of 12/31/98

Discipline	Digital	Non-Digital	Totals	Experimiments with Data	Spacecraft with Data

Astronomy	209	112	321	128	39
Space/Solar Physics	1,419	1,058	2,477	734	167
Planetary	515	727	1,242	292	90
Earth	113	94	207	180	99
Other	44	144	188	12	0

Totals	2,300	2,135	4,435	1,346	395

Table 2.
State of the NSSDC Archive as of 12/31/98

Discipline	No. of Terabytes	No. of Terabytes Network-Accessible	No. of Media (Digital)*
Astro	3.6	1.68	3,744
Space Physics	5.6	1.01	17,365
Planetary	3.3	0	22,810
Earth	3.3	0	26,352**
Total	15.8	2.69	70,271
* See Table 4 for detail; not counted is large quantity of data on microfilm, microfiche, etc. ** Awaiting transfer to EOSDIS

Table 3a.
Astrophysics Data Electronically Accessible from NSSDC
as of December 31, 1998

Project	Online	Nearline
ADC	15 GB
Astro
HUT		0.6 GB
UIT		35
WUPPE		20
CGRO		1
COBE	21
GINGA		1
HEAO-1		13
HEAO-2		4
HEAO-3		1
HST		3
IRAS		84
IUE		1,392
NRAO		1
OGLE		43
ORFEUS		0.3
OSO 8		23
Vela 5B		21
Totals	36 GB	1,643 GB

Table 3b.
Space Physics Data Electronically Accessible from NSSDC
as of December 31, 1998

	Online		Nearline
	CDAWeb	Anon/FTP	NDADS
ACE	0.04 GB
AE C,D,E		0.54 GB
AEROS		0.01
ARCAD		0.88
CDAW 9	0.05
DE			208 GB
Equator-S	0.38		0.4
FAST	5.5		8
Geotail	2.5		*
GOES	0.51		0.5
Ground-bsd	1.57
Hawkeye			20
Helios 1&2		0.03
Hinotori		0.14
	Online		Nearline
	CDAWeb	Anon/FTP	NDADS
IMP 8	0.38	0.31	41
Interball	0.16		0.2
ISEE			9
ISIS 1&2	4		242
ISTP	*		84
LANL	2.4		2.4
OMNI		0.22
Pioneer 10&11		0.35	1
PVO		0.03
Polar	29		*
SAMPEX	2.3		37
San Marco			0.1
Skylab			7
SOHO	0.24		0.3
Ulysses	0.65	1.58	20
Voyager 1&2		0.52	22
Wind	2.4		*
Yohkoh			239
Totals	52 GB	4.6 GB	952 GB
* Counting differences in CDAWeb and NDADS lead to grouping Wind, Polar, and Geotail as "ISTP" in the NDADS column.

Table 4.
Counts of Volumes at NSSDC Archive as of 12/31/98

Media	Astro- physics	Space Physics	Planetary Science	Earth Science	Total
4-mm Tape	448	23	2	0	473
8-mm Tape	215	403	79	0	697
9-Track Tape	2,687	10,414	20,749	26,352	60,202
CD-ROM (Titles)	39	95	822	0	956
CD-WO	15	6,061	1,156	0	7,234
12" WORM (Offline)	0	56	0	0	56
12" WORM (NDADS)	288	170	0	0	458
M-O Disk	0	134	0	0	134
DLT	52	9	0	0	61
Totals	3,744	17,365	22,810	26,352	70,271
Backup volumes not included

Table 5.
Photographic Data Products at NSSDC by Discipline

Discipline	Micro- film	Micro- fiche	Film (feet)	Film (frames)	Reels	Slides
Astrophysics	6,020	18,524	100	63,459		121
Earth Science	1,430		4,200	236,066
Planetary Science	3,294	6,345	143,214	390,735	259	5
Space Physics	20,188	13,269	4,640	4,379		41,502
Communications	183
Other	162
Totals	31,277	38,138	152,154	694,639	259	41,528

Table 6.
Data Arriving at NSSDC During 1998

Astrophysics		Planetary		Space Physics
ADC	1.8 GB	Clementine	0.5 GB	AMPTE	0.1
COBE	2.3	Galileo	1.9	FAST	587
IUE	517	Magellan	34	IMP-8	7.6
ROSAT	1.4	Mariner 9 & 10	65	ISEE	26
Wind	2	Pioneer Venus	4.3	ISIS	135
EUVE	704	Viking 1 and 2	17	ISTP
		Voyager 1&2	1.9	KP’s	63
Subtotal	1,228	Mars Observer	2.8	Geotail L0	135
		Mars Pathfinder	1.7	Polar L0	253
		Apollo 8	2.6	Wind L0 +	40
		Giotto	0.3	CRRES	22
		Lunar Prospector	2.3	SAMPEX	31
		Ulysses	0.6	Ulysses	9.5
		Mars Circ. Model	0.1	DE	1.4
		Asteroid Tables	0.7	Yohkoh	27.5
				Tether	0.5
		Subtotal	135	Alberta IMS	1.3

				Subtotal	1,340
		Grand Total	2,703
• 84 Data sets from 84 experiments arrived in 1998 • First data from 16 experiments arrived in 1998

Table 7.
Media Arriving at NSSDC During 1998

Media	Astro- Physics	Space Physics	Planetary Science	Total
4-mm Tape	0	1	0	1
8-mm Tape	2	23	0	25
9-Track Tape	0	49	2	51
CD-ROM (Titles)	3	35	84	122
CD-WO	10	1,968	185	2,163
Magneto-Optic Disk	0	31	0	31
DLT	52	9	0	61
Total	67	2,116	271	2454

Table 8.
Annual Access Statistics for Special Space Physics Systems

	First Went Public	1996	1997	1998
CDAWeb	6/96	11,752/2,518	36,606/8,481	58,786/23,483
OMNIWeb	12/94	5,181/2,470	7,325/3,621	8,784/3,042
COHOWeb	4/95	1,218/567	1,219/621	1,005/650
First member of each pair is the number of plots created. Second is the sum of numerical screen listings plus ASCII or CDF files created and downloaded.

Table 9.
Number of Files Downloaded from ANON/FTP (in Thousands),
Excluding NDADS

	1995	1996	1997	1998
Photo_Gallery		26	59	504
Geophys_Models	15	18	27	27
COHO	11	15	11	10
CDF		7	11	11
FITS		3	6	6
All Others	53	47	70	107
Totals	79	116	184	665

Table 10.
NDADS 1998 Access Stats - Missions with >10 Unique Sites
Accessing Data Monthly

	Mean Number Requests	Monthly E-addresses Accessing	Number Files
Astrophysics
IUE	4,998	76	194,183
IRAS	361	13	3,690
Subtotal	5,359		197,873

Space Physics
IMP 8	1,018	24	33,833
ISTP	787	17	14,556
Subtotal	1,805		48,389

All Others	2,302		118,976

Grand Totals	9,466		365,238

Table 11.
NSSDC User Community (Offline Requests) [CY 1998]

Affiliation Category	Total Requests	Percent of Total
No Affiliation [General Public]	542	32.44
Non-US	648	38.78
US Universities/Colleges	207	12.39
US Private Industry	144	8.62
NASA/GSFC	48	2.87
NASA Centers, Excluding GSFC	18	1.08
Other Government Agencies	57	3.41
Miscellaneous	7	0.42
Total	1,671*	100.00
* Requests for 3,959 Milky Way posters are not included in this total.

Table 12.
Number of Requests for Offline Satellite Data from NSSDC by Discipline

Discipline	Data Set Requests 1968 - 1998	Offline Data Set Requests 1998
Astrophysics	10,154	934
Earth Science	7,108	40
Planetary Science	40,781	1,989
Space Physics	8,098	229
Ephemeris	86	0
Other	20	0
Total	66,247	3,192

Table 13.
NSSDC Offline Data Dissemination Statistics as of December 31, 1998

Offline	1994	1995	1996	1997	1998
Number of Requests for Tapes	127	67	30	25	24
Number of Tapes Mailed	2,544	676	401	428	925
Number of Requests for CDs	874	814	1,233	1,297	1,079
Number of CDs Mailed	10,669	10,469	4,804	6,220	6,825
Number of Film Requests	181	128	177	192	300
Number of Film Volumes Mailed	3,724	894	1,733	2,383	2,353

Table 14.
AIM Partition Statistics for CY 1998

	Number of Records	Number Added
Subpartition in 1998	as of 12/31/98
Spacecraft	5,330	219
Experiment	5,531	17
Data Set	5,445	72
Totals	16,306	308
Number of spacecraft with experiments - 1,056 Number of experiments with data sets - 1,381

Table 15.
NSDF Partition Statistics for CY 1998

Discipline	Number of Data Sets
Astrophysics	1,037
Space Physics	439
Earth Science	65
Planetary	41
Other	28
Total	1,610

Table 16.
TRF Partition Statistics as of 12/31/98

Total Number of Records	39,860
Number of Records Inserted	1,508

Table 17.
IRAND Partition Statistics as of 12/31/98

Record Type	Total Records	Records Inserted	Records Updated
Personnel	54,776	1,006	6,142
Request	79,023	1,640

Table 1. Counts of NSSDC Data Sets and Data Set Sources as of 12/31/98

Table 2. State of the NSSDC Archive as of 12/31/98

Table 3a. Astrophysics Data Electronically Accessible from NSSDC as of December 31, 1998

Table 3b. Space Physics Data Electronically Accessible from NSSDC as of December 31, 1998

Table 4. Counts of Volumes at NSSDC Archive as of 12/31/98

Table 5. Photographic Data Products at NSSDC by Discipline

Table 6. Data Arriving at NSSDC During 1998

Table 7. Media Arriving at NSSDC During 1998

Table 8. Annual Access Statistics for Special Space Physics Systems

Table 9. Number of Files Downloaded from ANON/FTP (in Thousands), Excluding NDADS

Table 10. NDADS 1998 Access Stats - Missions with >10 Unique Sites Accessing Data Monthly

Table 11. NSSDC User Community (Offline Requests) [CY 1998]

Table 12. Number of Requests for Offline Satellite Data from NSSDC by Discipline

Table 13. NSSDC Offline Data Dissemination Statistics as of December 31, 1998

Table 14. AIM Partition Statistics for CY 1998

Table 15. NSDF Partition Statistics for CY 1998

Table 16. TRF Partition Statistics as of 12/31/98

Table 17. IRAND Partition Statistics as of 12/31/98