HST Publication Statistics

These statistics are for HST papers from refereed journals.

YearGIArchivalPart GI
Part Archive
Programs
not Assigned
Total
2018151156756388
201734037717021908
201633337515520883
20153273561568847
201430135814018817
201327931411973785
201230936113542847
201126838611222788
201025935610712734
20092653008827680
20082343267767704
20072663178758728
200622329511384715
200524726612053686
20042382479828611
200321627010813607
20022412019961602
20012621817244559
20002471826642537
19992371745338502
19982781644126509
1997213118434378
1996177843511307
199516259203244
199412239143178
1993722983112
199234184258
19913191142
--63326318231679015756

          Plot created March 18, 2018

Comparative h‐ and m‐indices for Fifteen Ground‐ and Space‐Based Observatories

The following graphics and chart are based on the STScI report "Comparative h‐ and m‐indices for Fifteen Ground‐ and Space‐Based Observatories" in this pdf file:   h-andm-indexComparisonThru2016v1.2.pdf. Please read the report to understand the methodology used when calculating values found in the plots and table below.

Please note: The SOFIA data in this report represents the starting point at first light, Nov 30, 2010. The SOFIA program declared full operations on May 29, 2014. Indices for this relatively young observatory should be measured at a later date for a fuller and more accurate picture of productivity. As a unique airborne observatory, future assessments should measure SOFIA against other observatories while taking into account the available hours for data collection for this unique non-space, non-ground observatory.

h-index for Ground- and Space-Based Observatories through 2016

m-index for Ground- and Space-Based Observatories through 2016

h-index/m-index Comparison of Ground- and Space-Based Observatories through 2016

Telescope/Observatory Comparison through 2016
Telescope/Observatoryh-indexm-index#yrs since first publicationFirst Scientific paper publishedDate of Launch/First LightPrimary Types(s)
Hubble2579.88261991April 24, 1990multi-wavelength (optical, IR, UV)
Keck2289.91231994Keck I May 1993/Keck II Oct 1996optical/IR
VLT/VLTI19310.721819991998 (Fully operation w/ fourth telescope in 2000)optical
Spitzer18514.23132004Aug 25, 2003IR
VLA/JVLA1764.29411976Sept 1975 (Officially dedicated in 1980)radio
Chandra17510.29172000July 23, 1999x-ray
XMM-Newton1298.06162001Dec 1999x-ray/optical
Subaru1197172000Jan 1999optical/IR
Gemini1146.711720001999 Mauna Kea/2000 Chileoptical/IR
Fermi10611.7892008June 2008gamma ray
Swift1068.83122005Nov 20, 2004gamma ray/x-ray/UV
Kepler/K210112.6382009March 2009/June 2014*photometric
ALMA448.852012Oct 2011millimeter/submillimeter radiation
NuSTAR32842013June 2012x-ray
SOFIA152.562011Nov 30, 2010 (Full operations reached May 29, 2014)IR/submillimeter

For further information and discussion of methods, refer to p.1 of the report, Comparative h‐ and m‐indices for Fifteen Ground‐ and Space‐Based Observatories. Questions can be directed to library@stsci.edu.

Number of papers using HST Instruments

YearACSCOSFGSFOCFOSHRSHSPNICMOSSTISWFPCWFPC2WFC3
201818535129701853078210
201748076721851451058175459
2016497863625120751171161389
2015482764322120591043178385
2014432707320131721124201323
2013421535324100841095188236
2012473443414150991143265190
201145848982310012011110246100
201042818472219112296927348
200943315319301248142371
2008405055141001129862600
200737901072522010713052620
200629704122828111616382740
20052050843521010519263030
20041220912292626017553060
2003270710362519316593380
200210610372506416053190
200100412323838611232940
2000007235471898372790
19990082053622632942460
199800515838822520182580
1997007355675121251770
1996002235845400301470
199500132545950048550
199400329383940053150
19930022421254003910
199200314990002200
1991002114130001000
--5725507141318843763331740233035055362341

Note that some papers use more than one instrument and are counted for each instrument.

Plots created March 15, 2018

Number of Unique Authors

Year# Authors# First Authors
20182721367
20177786802
20164517798
20154191741
20143820716
20133564704
20124089750
20113875690
20103235649
20092740604
20082741622
20072691641
20062437621
20052389595
20042043527
20032015522
20021859496
20011795467
20001699446
19991493419
19981562431
19971115320
1996835253
1995797202
1994589146
199338798
199219447
199114936

Unique first authors on HST papers: 5967
Unique authors on HST papers: 19222

Plot created March 15, 2018
Author name is defined as last name, first initial. Slight variations in spelling may increase the number of unique names. More common names with the same first initial may result in an undercount.

Citations

The citations are sum of all citations and the average number of citations for HST Science papers published in that year. The totals for all HST science papers.

Year# CitationsAvg # Citations# GI CitationsAvg # GI Citations# AR CitationsAvg # AR citations# Part GI/AR CitationsAvg # Part Citations
20181409356432523
201794361032208245514
20161443716454011283618
20152091123679218527933
20142539329891824555938
20133042136896027629252
201234439381161930725551
201138539451413134703360
201038498471446638553647
200935711481339842505354
200838771521600149575072
200745583611585949491356
200644259601638555782769
200540105571419053765863
200442040651143745585859
200341869661496655698864
200236985601213660743375
20013567763979054462864
20002968155865547532080
19992935157998757371868
1998412728014279875835142
19972582768689358406094
19962433779455654300485
19951573763301551147973
1994114506427246997569
199358845214505039349
19922783475893218245
1991244158336373636
Totals763246462498563812360752