Exposure
ID
GRAVI.2025-07-07T06:12:13.418_1
Header ID
GRAVI.2025-07-07T06:12:13.418
Date updated
2025-07-07 06:30:53 UTC+0000
Release date
2025-07-07 06:12:13 UTC+0000
UTC Start
2025-07-07 06:12:13.418
UTC End
2025-07-07 06:18:13.418
MJD Start
60863.25848863
MJD End
60863.26265529667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.004505
Ambient temperature (°C)
13.74
Seeing (arcsec)
0.6699999999999999
Observation
ID
68275
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
50742
Name
R2
RA
266.416459
DEC
-29.00753
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 51.7540 51.3930 39.1000 39.4000
U1-U3 91.4720 90.6500 45.3000 45.6000
U1-U4 105.6660 103.8140 76.5170 77.0610
U2-U3 40.4100 39.9420 53.2000 53.5000
U2-U4 71.8300 70.5330 102.4900 103.5130
U3-U4 54.8060 54.2970 136.4470 137.8060
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 60863.25848863
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME R2
RA 266.416459
DEC -29.00753
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 51.754
HIERARCH ESO ISS PBL12 END 51.393
HIERARCH ESO ISS PBLA12 START 39.1
HIERARCH ESO ISS PBLA12 END 39.4
HIERARCH ESO ISS PBL13 START 91.472
HIERARCH ESO ISS PBL13 END 90.65
HIERARCH ESO ISS PBLA13 START 45.3
HIERARCH ESO ISS PBLA13 END 45.6
HIERARCH ESO ISS PBL14 START 105.666
HIERARCH ESO ISS PBL14 END 103.814
HIERARCH ESO ISS PBLA14 START 76.517
HIERARCH ESO ISS PBLA14 END 77.061
HIERARCH ESO ISS PBL23 START 40.41
HIERARCH ESO ISS PBL23 END 39.942
HIERARCH ESO ISS PBLA23 START 53.2
HIERARCH ESO ISS PBLA23 END 53.5
HIERARCH ESO ISS PBL24 START 71.83
HIERARCH ESO ISS PBL24 END 70.533
HIERARCH ESO ISS PBLA24 START 102.49
HIERARCH ESO ISS PBLA24 END 103.513
HIERARCH ESO ISS PBL34 START 54.806
HIERARCH ESO ISS PBL34 END 54.297
HIERARCH ESO ISS PBLA34 START 136.447
HIERARCH ESO ISS PBLA34 END 137.806
HIERARCH ESO ISS AMBI TAU0 START 0.004439
HIERARCH ESO ISS AMBI TAU0 END 0.004571
HIERARCH ESO ISS AMBI TEMP 13.74
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.65
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520