Exposure
ID
GRAVI.2025-02-19T04:23:27.548_1
Header ID
GRAVI.2025-02-19T04:23:27.548
Date updated
2025-02-19 04:35:44 UTC+0000
Release date
2025-02-19 04:23:27 UTC+0000
UTC Start
2025-02-19 04:23:27.548
UTC End
2025-02-19 04:26:07.548
MJD Start
60725.18295773
MJD End
60725.18480958186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005626
Ambient temperature (°C)
13.18
Seeing (arcsec)
0.5700000000000001
Observation
ID
64762
Category
calibrator
Program ID
114.274C.001
Program Title
A NON-INTERACTING BLACK HOLE HIDING AROUND ONE OF THE BRIGHTEST STARS IN THE SKY?
Program Type
Normal
PI / COI
THOMPSON / KRAUS / ROWAN
Target
ID
48225
Name
HD81720
RA
141.328478
DEC
-54.4638
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 44.0850 44.1620 149.9000 150.3000
A0-J2 129.2310 129.2190 95.1000 95.7000
A0-J6 150.3680 150.0580 31.2410 31.6540
B5-J2 109.8610 109.7000 76.0000 76.6000
B5-J6 175.8130 175.5720 18.5300 18.9050
J2-J6 149.0160 149.2120 340.0990 340.4940
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.274C.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60725.18295773
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 81720
HIERARCH ESO INS SOBJ NAME HD81720
RA 141.328478
DEC -54.4638
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 44.085
HIERARCH ESO ISS PBL12 END 44.162
HIERARCH ESO ISS PBLA12 START 149.9
HIERARCH ESO ISS PBLA12 END 150.3
HIERARCH ESO ISS PBL13 START 129.231
HIERARCH ESO ISS PBL13 END 129.219
HIERARCH ESO ISS PBLA13 START 95.1
HIERARCH ESO ISS PBLA13 END 95.7
HIERARCH ESO ISS PBL14 START 150.368
HIERARCH ESO ISS PBL14 END 150.058
HIERARCH ESO ISS PBLA14 START 31.241
HIERARCH ESO ISS PBLA14 END 31.654
HIERARCH ESO ISS PBL23 START 109.861
HIERARCH ESO ISS PBL23 END 109.7
HIERARCH ESO ISS PBLA23 START 76.0
HIERARCH ESO ISS PBLA23 END 76.6
HIERARCH ESO ISS PBL24 START 175.813
HIERARCH ESO ISS PBL24 END 175.572
HIERARCH ESO ISS PBLA24 START 18.53
HIERARCH ESO ISS PBLA24 END 18.905
HIERARCH ESO ISS PBL34 START 149.016
HIERARCH ESO ISS PBL34 END 149.212
HIERARCH ESO ISS PBLA34 START 340.099
HIERARCH ESO ISS PBLA34 END 340.494
HIERARCH ESO ISS AMBI TAU0 START 0.006135
HIERARCH ESO ISS AMBI TAU0 END 0.005117
HIERARCH ESO ISS AMBI TEMP 13.18
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.58