Paper Counts
| Year |
GO |
Archival |
Part GO Part Archival |
Programs not Assigned |
Total |
| 2025 |
378 |
504 |
196 |
19 |
1097 |
| 2024 |
361 |
467 |
215 |
36 |
1079 |
| 2023 |
383 |
465 |
188 |
21 |
1057 |
| 2022 |
370 |
426 |
137 |
30 |
963 |
| 2021 |
336 |
515 |
148 |
35 |
1034 |
| 2020 |
336 |
428 |
132 |
24 |
920 |
| 2019 |
369 |
457 |
169 |
20 |
1015 |
| 2018 |
369 |
396 |
173 |
31 |
969 |
| 2017 |
343 |
374 |
176 |
22 |
915 |
| 2016 |
333 |
369 |
161 |
20 |
883 |
| 2015 |
329 |
353 |
159 |
12 |
853 |
| 2014 |
302 |
358 |
142 |
18 |
820 |
| 2013 |
279 |
314 |
119 |
73 |
785 |
| 2012 |
310 |
361 |
135 |
42 |
848 |
| 2011 |
270 |
385 |
112 |
22 |
789 |
| 2010 |
259 |
356 |
107 |
12 |
734 |
| 2009 |
268 |
307 |
88 |
20 |
683 |
| 2008 |
236 |
325 |
81 |
63 |
705 |
| 2007 |
268 |
320 |
87 |
58 |
733 |
| 2006 |
227 |
295 |
114 |
79 |
715 |
| 2005 |
248 |
267 |
120 |
51 |
686 |
| 2004 |
238 |
248 |
98 |
32 |
616 |
| 2003 |
216 |
274 |
108 |
9 |
607 |
| 2002 |
241 |
202 |
99 |
60 |
602 |
| 2001 |
262 |
181 |
74 |
44 |
561 |
| 2000 |
247 |
183 |
66 |
41 |
537 |
| 1999 |
237 |
174 |
53 |
39 |
503 |
| 1998 |
278 |
164 |
41 |
27 |
510 |
| 1997 |
213 |
118 |
43 |
4 |
378 |
| 1996 |
177 |
84 |
35 |
11 |
307 |
| 1995 |
162 |
59 |
20 |
3 |
244 |
| 1994 |
122 |
39 |
14 |
3 |
178 |
| 1993 |
72 |
29 |
8 |
3 |
112 |
| 1992 |
34 |
18 |
4 |
2 |
58 |
| 1991 |
31 |
9 |
1 |
1 |
42 |
Paper counts chart
Unique Authors
| Year |
# Authors |
# First Authors |
|
2025
|
6981 |
980 |
|
2024
|
7361 |
965 |
|
2023
|
6721 |
932 |
|
2022
|
5578 |
853 |
|
2021
|
6842 |
956 |
|
2020
|
5681 |
837 |
|
2019
|
5760 |
923 |
|
2018
|
4962 |
878 |
|
2017
|
7902 |
809 |
|
2016
|
4558 |
801 |
|
2015
|
4253 |
750 |
|
2014
|
3845 |
721 |
|
2013
|
3600 |
710 |
|
2012
|
4126 |
754 |
|
2011
|
3915 |
696 |
|
2010
|
3263 |
653 |
|
2009
|
2758 |
607 |
|
2008
|
2768 |
626 |
|
2007
|
2719 |
648 |
|
2006
|
2459 |
624 |
|
2005
|
2409 |
597 |
|
2004
|
2064 |
534 |
|
2003
|
2034 |
526 |
|
2002
|
1869 |
497 |
|
2001
|
1804 |
471 |
|
2000
|
1709 |
450 |
|
1999
|
1501 |
422 |
|
1998
|
1572 |
435 |
|
1997
|
1121 |
321 |
|
1996
|
838 |
253 |
|
1995
|
800 |
202 |
|
1994
|
589 |
146 |
|
1993
|
387 |
98 |
|
1992
|
194 |
47 |
|
1991
|
149 |
36 |
|
Total
|
28918 |
8965 |
Unique Authors Chart
Citations
The citations are the sum of all citations and the average number of citations for science papers published in that
year. Due to the way
citations are calculated via ADS, a single citing paper can count for two or more citations. Other observatories may
calculate citations differently.
| Year |
# Papers |
# Citations |
Avg # Citations |
# GO Citations |
Avg # GO Citations |
# AR Citations |
Avg # AR Citations |
# Part Citations |
Avg # Part Citations |
| 2025 |
1097 |
16154 |
15.0 |
6809 |
18.0 |
5827 |
12.0 |
3205 |
16.0 |
| 2024 |
1079 |
27789 |
26.0 |
9244 |
26.0 |
9383 |
20.0 |
8096 |
38.0 |
| 2023 |
1057 |
37874 |
36.0 |
13211 |
34.0 |
15051 |
32.0 |
8708 |
46.0 |
| 2022 |
963 |
37442 |
39.0 |
14535 |
39.0 |
11708 |
27.0 |
10301 |
75.0 |
| 2021 |
1034 |
36476 |
35.0 |
12685 |
38.0 |
15779 |
31.0 |
6835 |
46.0 |
| 2020 |
920 |
58326 |
63.0 |
15506 |
46.0 |
35375 |
83.0 |
6267 |
47.0 |
| 2019 |
1015 |
59191 |
58.0 |
24700 |
67.0 |
21313 |
47.0 |
12072 |
71.0 |
| 2018 |
969 |
59688 |
62.0 |
26446 |
72.0 |
22216 |
56.0 |
9189 |
53.0 |
| 2017 |
915 |
60883 |
67.0 |
22187 |
65.0 |
18714 |
50.0 |
19119 |
109.0 |
| 2016 |
883 |
57842 |
66.0 |
26819 |
81.0 |
17616 |
48.0 |
11622 |
72.0 |
| 2015 |
853 |
60241 |
71.0 |
25447 |
77.0 |
19135 |
54.0 |
15270 |
96.0 |
| 2014 |
820 |
60498 |
74.0 |
25932 |
86.0 |
20635 |
58.0 |
13004 |
92.0 |
| 2013 |
785 |
61683 |
79.0 |
25550 |
92.0 |
18834 |
60.0 |
12256 |
103.0 |
| 2012 |
848 |
62065 |
73.0 |
25736 |
83.0 |
20850 |
58.0 |
12730 |
94.0 |
| 2011 |
789 |
63906 |
81.0 |
27560 |
102.0 |
23190 |
60.0 |
10941 |
98.0 |
| 2010 |
734 |
60578 |
83.0 |
26137 |
101.0 |
22916 |
64.0 |
9328 |
87.0 |
| 2009 |
683 |
53833 |
79.0 |
23713 |
88.0 |
21155 |
69.0 |
7549 |
86.0 |
| 2008 |
705 |
54957 |
78.0 |
19270 |
82.0 |
22855 |
70.0 |
8426 |
104.0 |
| 2007 |
733 |
64283 |
88.0 |
31726 |
118.0 |
21359 |
67.0 |
6643 |
76.0 |
| 2006 |
715 |
59608 |
83.0 |
21426 |
94.0 |
21995 |
75.0 |
10581 |
93.0 |
| 2005 |
686 |
51246 |
75.0 |
19263 |
78.0 |
18486 |
69.0 |
9572 |
80.0 |
| 2004 |
616 |
53036 |
86.0 |
27143 |
114.0 |
14760 |
60.0 |
7126 |
73.0 |
| 2003 |
607 |
53234 |
88.0 |
23491 |
109.0 |
18802 |
69.0 |
8899 |
82.0 |
| 2002 |
602 |
46886 |
78.0 |
16937 |
70.0 |
15663 |
78.0 |
10072 |
102.0 |
| 2001 |
561 |
43459 |
77.0 |
22415 |
86.0 |
11633 |
64.0 |
6359 |
86.0 |
| 2000 |
537 |
35442 |
66.0 |
16403 |
66.0 |
10519 |
57.0 |
6200 |
94.0 |
| 1999 |
503 |
34308 |
68.0 |
15193 |
64.0 |
11678 |
67.0 |
4192 |
79.0 |
| 1998 |
510 |
48604 |
95.0 |
23169 |
83.0 |
16392 |
100.0 |
7314 |
178.0 |
| 1997 |
378 |
29465 |
78.0 |
16890 |
79.0 |
7822 |
66.0 |
4723 |
110.0 |
| 1996 |
307 |
27760 |
90.0 |
16956 |
96.0 |
5188 |
62.0 |
3409 |
97.0 |
| 1995 |
244 |
17966 |
74.0 |
12765 |
79.0 |
3466 |
59.0 |
1634 |
82.0 |
| 1994 |
178 |
12677 |
71.0 |
8440 |
69.0 |
3078 |
79.0 |
1066 |
76.0 |
| 1993 |
112 |
6413 |
57.0 |
4222 |
59.0 |
1681 |
58.0 |
431 |
54.0 |
| 1992 |
58 |
3042 |
52.0 |
2173 |
64.0 |
650 |
36.0 |
205 |
51.0 |
| 1991 |
42 |
2629 |
63.0 |
2213 |
71.0 |
375 |
42.0 |
36 |
36.0 |
| Total |
23538 |
1519484 |
65.0 |
652312 |
72.0 |
526099 |
54.0 |
273380 |
75.0 |
Number of papers using HST instruments
| Year |
ACS |
COS |
FGS |
FOC |
FOS |
HRS |
HSP |
NICMOS |
STIS |
WFC3 |
WFPC |
WFPC2 |
|
2025
|
603 |
93 |
3 |
3 |
7 |
4 |
0 |
26 |
143 |
596 |
4 |
97 |
|
2024
|
541 |
112 |
1 |
4 |
8 |
6 |
0 |
29 |
135 |
656 |
3 |
127 |
|
2023
|
521 |
71 |
1 |
4 |
17 |
4 |
0 |
27 |
137 |
616 |
2 |
106 |
|
2022
|
439 |
85 |
4 |
1 |
14 |
6 |
0 |
34 |
148 |
504 |
5 |
107 |
|
2021
|
491 |
100 |
4 |
3 |
11 |
4 |
0 |
41 |
136 |
531 |
4 |
132 |
|
2020
|
417 |
80 |
5 |
2 |
10 |
6 |
0 |
33 |
126 |
471 |
1 |
113 |
|
2019
|
480 |
89 |
7 |
2 |
18 |
10 |
0 |
41 |
123 |
531 |
4 |
138 |
|
2018
|
440 |
93 |
8 |
4 |
16 |
13 |
0 |
47 |
132 |
501 |
3 |
156 |
|
2017
|
460 |
76 |
7 |
2 |
18 |
5 |
1 |
41 |
104 |
439 |
7 |
146 |
|
2016
|
457 |
83 |
3 |
6 |
25 |
11 |
0 |
70 |
114 |
374 |
1 |
141 |
|
2015
|
449 |
77 |
4 |
3 |
23 |
12 |
0 |
55 |
103 |
370 |
3 |
156 |
|
2014
|
417 |
69 |
7 |
3 |
20 |
11 |
1 |
67 |
109 |
312 |
4 |
181 |
|
2013
|
411 |
53 |
5 |
3 |
24 |
10 |
0 |
83 |
108 |
234 |
5 |
177 |
|
2012
|
453 |
44 |
3 |
3 |
14 |
15 |
0 |
93 |
113 |
186 |
3 |
232 |
|
2011
|
434 |
48 |
9 |
8 |
23 |
10 |
0 |
113 |
106 |
99 |
10 |
223 |
|
2010
|
410 |
18 |
4 |
7 |
20 |
18 |
1 |
117 |
95 |
48 |
8 |
245 |
|
2009
|
429 |
1 |
5 |
3 |
19 |
3 |
0 |
121 |
81 |
1 |
4 |
234 |
|
2008
|
405 |
0 |
5 |
5 |
14 |
10 |
0 |
111 |
98 |
0 |
6 |
261 |
|
2007
|
379 |
0 |
10 |
7 |
25 |
22 |
0 |
107 |
131 |
0 |
5 |
265 |
|
2006
|
297 |
0 |
4 |
12 |
28 |
28 |
1 |
116 |
163 |
0 |
8 |
274 |
|
2005
|
205 |
0 |
8 |
4 |
35 |
21 |
0 |
105 |
192 |
0 |
6 |
303 |
|
2004
|
122 |
0 |
9 |
12 |
29 |
26 |
2 |
60 |
180 |
0 |
5 |
306 |
|
2003
|
26 |
0 |
7 |
10 |
36 |
25 |
1 |
93 |
165 |
0 |
9 |
338 |
|
2002
|
1 |
0 |
6 |
10 |
37 |
25 |
0 |
64 |
160 |
0 |
5 |
319 |
|
2001
|
0 |
0 |
4 |
12 |
32 |
38 |
3 |
86 |
113 |
0 |
3 |
295 |
|
2000
|
0 |
0 |
7 |
2 |
35 |
47 |
1 |
89 |
83 |
0 |
7 |
279 |
|
1999
|
0 |
0 |
8 |
20 |
53 |
63 |
2 |
63 |
29 |
0 |
4 |
246 |
|
1998
|
0 |
0 |
5 |
15 |
83 |
88 |
2 |
26 |
20 |
0 |
18 |
259 |
|
1997
|
0 |
0 |
7 |
35 |
56 |
75 |
1 |
2 |
1 |
0 |
25 |
177 |
|
1996
|
0 |
0 |
2 |
23 |
58 |
45 |
4 |
0 |
0 |
0 |
30 |
147 |
|
1995
|
0 |
0 |
1 |
32 |
54 |
59 |
5 |
0 |
0 |
0 |
48 |
55 |
|
1994
|
0 |
0 |
3 |
29 |
38 |
39 |
4 |
0 |
0 |
0 |
53 |
15 |
|
1993
|
0 |
0 |
2 |
24 |
21 |
25 |
4 |
0 |
0 |
0 |
39 |
1 |
|
1992
|
0 |
0 |
3 |
14 |
9 |
9 |
0 |
0 |
0 |
0 |
22 |
0 |
|
1991
|
0 |
0 |
2 |
11 |
4 |
13 |
0 |
0 |
0 |
0 |
10 |
0 |
|
Total
|
9287 |
1192 |
173 |
338 |
934 |
806 |
33 |
1960 |
3348 |
6469 |
374 |
6251 |
Number of papers using HST instruments chart