Exposure
ID
GRAVI.2025-04-23T09:28:50.156_1
Header ID
GRAVI.2025-04-23T09:28:50.156
Date updated
2025-04-23 09:40:56 UTC+0000
Release date
2026-04-23 09:40:56 UTC+0000
UTC Start
2025-04-23 09:28:50.156
UTC End
2025-04-23 09:31:30.156
MJD Start
60788.39502495
MJD End
60788.39687680185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0072265
Ambient temperature (°C)
11.97
Seeing (arcsec)
0.69
Observation
ID
66942
Category
science
Program ID
113.26BP.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART IV
Program Type
Normal
PI / COI
GALLENNE / PIETRZYNSKI / KERVELLA / MÉRAND / GIEREN / GRACZYK
Target
ID
49767
Name
V2291_Oph
RA
276.409398
DEC
8.03197
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 85.1020 84.7300 112.2000 112.2000
A0-J2 127.9070 127.6590 91.5000 91.4000
A0-K0 127.7180 127.8090 73.1420 73.0500
G1-J2 56.9100 57.0430 59.5000 59.5000
G1-K0 81.6390 81.9050 32.1210 32.3120
J2-K0 40.6720 40.6250 352.0280 352.4040
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26BP.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60788.39502495
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V2291-Oph
HIERARCH ESO INS SOBJ NAME V2291_Oph
RA 276.409398
DEC 8.03197
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 85.102
HIERARCH ESO ISS PBL12 END 84.73
HIERARCH ESO ISS PBLA12 START 112.2
HIERARCH ESO ISS PBLA12 END 112.2
HIERARCH ESO ISS PBL13 START 127.907
HIERARCH ESO ISS PBL13 END 127.659
HIERARCH ESO ISS PBLA13 START 91.5
HIERARCH ESO ISS PBLA13 END 91.4
HIERARCH ESO ISS PBL14 START 127.718
HIERARCH ESO ISS PBL14 END 127.809
HIERARCH ESO ISS PBLA14 START 73.142
HIERARCH ESO ISS PBLA14 END 73.05
HIERARCH ESO ISS PBL23 START 56.91
HIERARCH ESO ISS PBL23 END 57.043
HIERARCH ESO ISS PBLA23 START 59.5
HIERARCH ESO ISS PBLA23 END 59.5
HIERARCH ESO ISS PBL24 START 81.639
HIERARCH ESO ISS PBL24 END 81.905
HIERARCH ESO ISS PBLA24 START 32.121
HIERARCH ESO ISS PBLA24 END 32.312
HIERARCH ESO ISS PBL34 START 40.672
HIERARCH ESO ISS PBL34 END 40.625
HIERARCH ESO ISS PBLA34 START 352.028
HIERARCH ESO ISS PBLA34 END 352.404
HIERARCH ESO ISS AMBI TAU0 START 0.007277
HIERARCH ESO ISS AMBI TAU0 END 0.007176
HIERARCH ESO ISS AMBI TEMP 11.97
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.69