Exposure
ID
GRAVI.2025-07-07T03:02:51.936_1
Header ID
GRAVI.2025-07-07T03:02:51.936
Date updated
2025-07-07 03:20:38 UTC+0000
Release date
2025-07-07 03:02:51 UTC+0000
UTC Start
2025-07-07 03:02:51.936
UTC End
2025-07-07 03:08:51.936
MJD Start
60863.12699
MJD End
60863.13115666666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.010179500000000001
Ambient temperature (°C)
14.21
Seeing (arcsec)
0.475
Observation
ID
68252
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
50721
Name
R2
RA
266.416167
DEC
-29.00744
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 56.5350 56.5160 23.3000 24.1000
U1-U3 102.4210 102.3930 29.6000 30.4000
U1-U4 130.0900 130.1780 57.4810 58.2890
U2-U3 46.6410 46.6360 37.3000 38.1000
U2-U4 89.1360 89.2840 78.3330 79.1360
U3-U4 62.0520 62.2040 107.9150 108.6520
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 60863.12699
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.416167
DEC -29.00744
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 56.535
HIERARCH ESO ISS PBL12 END 56.516
HIERARCH ESO ISS PBLA12 START 23.3
HIERARCH ESO ISS PBLA12 END 24.1
HIERARCH ESO ISS PBL13 START 102.421
HIERARCH ESO ISS PBL13 END 102.393
HIERARCH ESO ISS PBLA13 START 29.6
HIERARCH ESO ISS PBLA13 END 30.4
HIERARCH ESO ISS PBL14 START 130.09
HIERARCH ESO ISS PBL14 END 130.178
HIERARCH ESO ISS PBLA14 START 57.481
HIERARCH ESO ISS PBLA14 END 58.289
HIERARCH ESO ISS PBL23 START 46.641
HIERARCH ESO ISS PBL23 END 46.636
HIERARCH ESO ISS PBLA23 START 37.3
HIERARCH ESO ISS PBLA23 END 38.1
HIERARCH ESO ISS PBL24 START 89.136
HIERARCH ESO ISS PBL24 END 89.284
HIERARCH ESO ISS PBLA24 START 78.333
HIERARCH ESO ISS PBLA24 END 79.136
HIERARCH ESO ISS PBL34 START 62.052
HIERARCH ESO ISS PBL34 END 62.204
HIERARCH ESO ISS PBLA34 START 107.915
HIERARCH ESO ISS PBLA34 END 108.652
HIERARCH ESO ISS AMBI TAU0 START 0.010612
HIERARCH ESO ISS AMBI TAU0 END 0.009747
HIERARCH ESO ISS AMBI TEMP 14.21
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.46
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520