Generated: 10/28/2025 03:48.52
Cerro Tololo Inter-American Observatory
Community Science and Data Center
Gemini Observatory
Kitt Peak National Observatory
Vera C. Rubin Observatory
Proposal Statistics by Instrument
NOIRLab 2023B
 

The following tables list NOIRLab 2023B proposal request statistics for telescopes and instruments in the U.S. ground-based observing system coordinated by NSF NOIRLab. Only proposals submitted to the NOIRLab 2023B TAC are included here.

 
Cerro Tololo
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Blanco CT-4m 22 32 96.98 35.70 0.37 4.41
DECam 21 31 93.38 35.70 0.38 3.01
NEWFIRM 1 1 3.60 0.00 0.00 3.60
 
CT-0.9m 1 1 7.00 0.00 0.00 7.00
Tek2K 1 1 7.00 0.00 0.00 7.00
 
CT-1.5m 15 16 37.03 2.20 0.06 2.47
CHIRON 15 16 37.03 2.20 0.06 2.31
 
SOAR 37 47 94.76 22.85 0.24 2.56
Goodman 24 29 61.55 19.65 0.32 2.12
HRCAM 2 2 2.00 0.00 0.00 1.00
SOI 1 1 3.00 3.00 1.00 3.00
Spartan 3 3 7.13 0.00 0.00 2.38
TripleSpec4.1 11 12 21.08 0.20 0.01 1.76
 
 
Gemini
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
GEM-N 117 199 122.44 25.13 0.21 1.05
ALOPEKE 7 7 9.06 0.60 0.07 1.29
GMOSN 64 107 51.95 24.13 0.46 0.49
GNIRS 34 55 26.99 0.00 0.00 0.49
MAROON-X 24 24 30.71 0.00 0.00 1.28
NIFS 4 5 3.33 0.00 0.00 0.67
NIRI 1 1 0.40 0.40 0.40 0.40
 
GEM-S 100 184 110.36 30.06 0.27 1.10
FLAMINGOS2 28 51 24.07 0.00 0.00 0.47
GMOSS 63 106 56.69 30.06 0.53 0.53
GSAOI 6 7 5.31 0.00 0.00 0.76
IGRINS 16 16 17.03 0.00 0.00 1.06
ZORRO 4 4 7.26 0.00 0.00 1.82
 
 
Kitt Peak
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
WIYN 41 52 78.43 3.55 0.05 1.91
NEID 38 47 70.83 1.55 0.02 1.51
NESSI 5 5 7.60 2.00 0.26 1.52
 
 
Las Campanas Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Baade (Magellan I) 6 7 9.00 1.00 0.11 1.50
FIRE 4 5 7.00 0.00 0.00 1.40
IMACS 2 2 2.00 1.00 0.50 1.00
 
Clay (Magellan II) 1 1 2.00 2.00 1.00 2.00
MIKE 1 1 2.00 2.00 1.00 2.00
 
 
Las Cumbres Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
LCOGT-1m 19 20 124.13 0.00 0.00 6.39
NRES 5 5 23.75 0.00 0.00 4.75
Sinistro 14 15 100.38 0.00 0.00 6.98
 
LCOGT-2M 7 9 16.92 0.00 0.00 1.80
FLOYDS 5 6 9.11 0.00 0.00 1.52
MuSCAT3 2 2 6.21 0.00 0.00 1.90
Spectral 1 1 1.60 0.00 0.00 1.60
 
 
Mount Kent Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
MINERVA-A 7 8 45.25 0.00 0.00 6.46
MINERVA 7 8 45.25 0.00 0.00 5.66
 
 
MT. Wilson, CA
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
CHARA 20 28 67.00 4.50 0.07 3.35
Classic 1 1 2.50 2.50 1.00 2.50
MIRC/MYS 18 24 59.50 2.00 0.03 2.48
PAVO 3 3 5.00 0.00 0.00 1.67
 
 
National Astronomical Observatory of Japan
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Subaru 6 6 10.82 0.00 0.00 1.80
HDS 2 2 3.58 0.00 0.00 1.79
HSC 2 2 2.34 0.00 0.00 1.17
SCEXAO+CHARIS 1 1 1.00 0.00 0.00 1.00
SCEXAO/VAMPIRES 1 1 3.90 0.00 0.00 3.90
 
 
W.M. Keck Observatory
Telescope/Instrument Proposals Runs Total Nights Dark Nights Percentage Dark Avg. Nights per Run
Keck-I 9 10 9.70 2.50 0.26 1.08
HIRESr 1 1 0.50 0.00 0.00 0.50
KPF 4 4 4.20 0.00 0.00 1.05
LRIS-ADC 1 2 1.00 1.00 1.00 0.50
MOSFIRE 2 2 3.50 1.50 0.43 1.75
OSIRIS-NGS 1 1 0.50 0.00 0.00 0.50
 
Keck-II 12 13 9.20 2.70 0.29 0.77
KCWI 4 4 3.20 2.70 0.84 0.80
NIRC2-NGS 4 4 2.00 0.00 0.00 0.50
NIRES 1 1 0.50 0.00 0.00 0.50
NIRSPAO-NGS 1 1 0.50 0.00 0.00 0.50
NIRSPEC 3 3 3.00 0.00 0.00 1.00