Exposure
ID
GRAVI.2023-06-04T08:34:36.384_1
Header ID
GRAVI.2023-06-04T08:34:36.384
Date updated
2023-06-04 08:50:25 UTC+0000
Release date
2023-06-04 08:34:36 UTC+0000
UTC Start
2023-06-04 08:34:36.384
UTC End
2023-06-04 08:40:36.384
MJD Start
60099.35736556
MJD End
60099.3615322267
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.010049
Ambient temperature (°C)
13.8
Seeing (arcsec)
0.285
Observation
ID
55651
Category
calibrator
Program ID
111.24H1.002
Program Title
THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
ID
41214
Name
R2
RA
266.416876
DEC
-29.0073
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-SPLIT
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 51.1440 50.7550 39.6000 39.8000
U1-U3 90.0850 89.2020 45.7000 46.0000
U1-U4 102.5440 100.5640 77.4210 77.9680
U2-U3 39.6210 39.1190 53.7000 54.0000
U2-U4 69.6480 68.2790 104.2120 105.3010
U3-U4 53.9560 53.4400 138.7310 140.1640
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24H1.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60099.35736556
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.416876
DEC -29.0073
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 51.144
HIERARCH ESO ISS PBL12 END 50.755
HIERARCH ESO ISS PBLA12 START 39.6
HIERARCH ESO ISS PBLA12 END 39.8
HIERARCH ESO ISS PBL13 START 90.085
HIERARCH ESO ISS PBL13 END 89.202
HIERARCH ESO ISS PBLA13 START 45.7
HIERARCH ESO ISS PBLA13 END 46.0
HIERARCH ESO ISS PBL14 START 102.544
HIERARCH ESO ISS PBL14 END 100.564
HIERARCH ESO ISS PBLA14 START 77.421
HIERARCH ESO ISS PBLA14 END 77.968
HIERARCH ESO ISS PBL23 START 39.621
HIERARCH ESO ISS PBL23 END 39.119
HIERARCH ESO ISS PBLA23 START 53.7
HIERARCH ESO ISS PBLA23 END 54.0
HIERARCH ESO ISS PBL24 START 69.648
HIERARCH ESO ISS PBL24 END 68.279
HIERARCH ESO ISS PBLA24 START 104.212
HIERARCH ESO ISS PBLA24 END 105.301
HIERARCH ESO ISS PBL34 START 53.956
HIERARCH ESO ISS PBL34 END 53.44
HIERARCH ESO ISS PBLA34 START 138.731
HIERARCH ESO ISS PBLA34 END 140.164
HIERARCH ESO ISS AMBI TAU0 START 0.009546
HIERARCH ESO ISS AMBI TAU0 END 0.010552
HIERARCH ESO ISS AMBI TEMP 13.8
HIERARCH ESO ISS AMBI FWHM START 0.29
HIERARCH ESO ISS AMBI FWHM END 0.28
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1060
HIERARCH ESO FT ROBJ DELTA -290027.5231