Exposure
ID
GRAVI.2025-07-08T02:18:14.352_1
Header ID
GRAVI.2025-07-08T02:18:14.352
Date updated
2025-07-08 02:35:36 UTC+0000
Release date
2025-07-08 02:18:14 UTC+0000
UTC Start
2025-07-08 02:18:14.352
UTC End
2025-07-08 02:24:14.352
MJD Start
60864.09599944
MJD End
60864.10016610666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0060444999999999995
Ambient temperature (°C)
15.29
Seeing (arcsec)
0.66
Observation
ID
68372
Category
calibrator
Program ID
115.27WT.003
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 / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
50807
Name
R2
RA
266.416192
DEC
-29.00743
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 56.5400 56.5500 18.4000 19.2000
U1-U3 102.2800 102.3330 24.5000 25.4000
U1-U4 128.3330 128.7380 51.9660 52.8860
U2-U3 46.4570 46.5080 32.0000 32.9000
U2-U4 87.0360 87.4960 73.0200 73.8920
U3-U4 60.2770 60.6520 103.4180 104.1120
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60864.09599944
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.416192
DEC -29.00743
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 56.54
HIERARCH ESO ISS PBL12 END 56.55
HIERARCH ESO ISS PBLA12 START 18.4
HIERARCH ESO ISS PBLA12 END 19.2
HIERARCH ESO ISS PBL13 START 102.28
HIERARCH ESO ISS PBL13 END 102.333
HIERARCH ESO ISS PBLA13 START 24.5
HIERARCH ESO ISS PBLA13 END 25.4
HIERARCH ESO ISS PBL14 START 128.333
HIERARCH ESO ISS PBL14 END 128.738
HIERARCH ESO ISS PBLA14 START 51.966
HIERARCH ESO ISS PBLA14 END 52.886
HIERARCH ESO ISS PBL23 START 46.457
HIERARCH ESO ISS PBL23 END 46.508
HIERARCH ESO ISS PBLA23 START 32.0
HIERARCH ESO ISS PBLA23 END 32.9
HIERARCH ESO ISS PBL24 START 87.036
HIERARCH ESO ISS PBL24 END 87.496
HIERARCH ESO ISS PBLA24 START 73.02
HIERARCH ESO ISS PBLA24 END 73.892
HIERARCH ESO ISS PBL34 START 60.277
HIERARCH ESO ISS PBL34 END 60.652
HIERARCH ESO ISS PBLA34 START 103.418
HIERARCH ESO ISS PBLA34 END 104.112
HIERARCH ESO ISS AMBI TAU0 START 0.005696
HIERARCH ESO ISS AMBI TAU0 END 0.006393
HIERARCH ESO ISS AMBI TEMP 15.29
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.68
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520