Exposure
ID
GRAVI.2022-11-11T05:31:57.300_1
Header ID
GRAVI.2022-11-11T05:31:57.300
Date updated
2022-11-11 05:45:44 UTC+0000
Release date
2022-11-11 05:31:57 UTC+0000
UTC Start
2022-11-11 05:31:57.300
UTC End
2022-11-11 05:37:57.300
MJD Start
59894.23052431
MJD End
59894.2346909767
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0051235
Ambient temperature (°C)
9.84
Seeing (arcsec)
0.52
Observation
ID
53118
Category
calibrator
Program ID
110.23XR.001
Program Title
PROBING A CLOSE BINARY OF SUPERMASSIVE BLACK HOLES WITH GRAVITY
Program Type
Normal
PI / COI
SHANGGUAN/ BROTHERTON/ CAO/ DAVIES/ DEXTER/ DE ZEEUW/ DU/ EISENHAUER/ HO/ LI/ LUTZ/ SANTOS/ SHIMIZU/ SONGSHENG/ STURM/ WANG
Target
ID
39496
Name
HD34639
RA
79.693696
DEC
-9.04527
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 52.9290 53.1110 19.3000 20.1000
U1-U3 95.2900 95.7410 26.1000 26.9000
U1-U4 120.6760 121.7610 56.3020 56.8890
U2-U3 43.1740 43.4440 34.3000 35.1000
U2-U4 84.6070 85.3530 78.4050 78.7560
U3-U4 61.4370 61.7110 107.6750 107.8420
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.23XR.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59894.23052431
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD34639
HIERARCH ESO INS SOBJ NAME HD34639
RA 79.693696
DEC -9.04527
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 376.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 52.929
HIERARCH ESO ISS PBL12 END 53.111
HIERARCH ESO ISS PBLA12 START 19.3
HIERARCH ESO ISS PBLA12 END 20.1
HIERARCH ESO ISS PBL13 START 95.29
HIERARCH ESO ISS PBL13 END 95.741
HIERARCH ESO ISS PBLA13 START 26.1
HIERARCH ESO ISS PBLA13 END 26.9
HIERARCH ESO ISS PBL14 START 120.676
HIERARCH ESO ISS PBL14 END 121.761
HIERARCH ESO ISS PBLA14 START 56.302
HIERARCH ESO ISS PBLA14 END 56.889
HIERARCH ESO ISS PBL23 START 43.174
HIERARCH ESO ISS PBL23 END 43.444
HIERARCH ESO ISS PBLA23 START 34.3
HIERARCH ESO ISS PBLA23 END 35.1
HIERARCH ESO ISS PBL24 START 84.607
HIERARCH ESO ISS PBL24 END 85.353
HIERARCH ESO ISS PBLA24 START 78.405
HIERARCH ESO ISS PBLA24 END 78.756
HIERARCH ESO ISS PBL34 START 61.437
HIERARCH ESO ISS PBL34 END 61.711
HIERARCH ESO ISS PBLA34 START 107.675
HIERARCH ESO ISS PBLA34 END 107.842
HIERARCH ESO ISS AMBI TAU0 START 0.004883
HIERARCH ESO ISS AMBI TAU0 END 0.005364
HIERARCH ESO ISS AMBI TEMP 9.84
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.49