Exposure
ID
GRAVI.2025-07-08T04:44:35.724_2
Header ID
GRAVI.2025-07-08T04:44:35.724
Date updated
2025-07-08 05:00:34 UTC+0000
Release date
2026-07-08 05:00:34 UTC+0000
UTC Start
2025-07-08 04:44:35.724
UTC End
2025-07-08 04:50:35.724
MJD Start
60864.19763569
MJD End
60864.20180235666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0118055
Ambient temperature (°C)
15.66
Seeing (arcsec)
0.255
Observation
ID
68254
Category
science
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
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.1440 54.9650 33.7000 34.2000
U1-U3 99.2780 98.8610 40.1000 40.6000
U1-U4 123.6660 122.6900 69.0390 69.6540
U2-U3 44.8910 44.6500 47.9000 48.4000
U2-U4 84.8720 84.1500 91.0910 91.8900
U3-U4 60.5120 60.1730 121.5940 122.5820
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.19763569
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416491
DEC -29.00739
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 55.144
HIERARCH ESO ISS PBL12 END 54.965
HIERARCH ESO ISS PBLA12 START 33.7
HIERARCH ESO ISS PBLA12 END 34.2
HIERARCH ESO ISS PBL13 START 99.278
HIERARCH ESO ISS PBL13 END 98.861
HIERARCH ESO ISS PBLA13 START 40.1
HIERARCH ESO ISS PBLA13 END 40.6
HIERARCH ESO ISS PBL14 START 123.666
HIERARCH ESO ISS PBL14 END 122.69
HIERARCH ESO ISS PBLA14 START 69.039
HIERARCH ESO ISS PBLA14 END 69.654
HIERARCH ESO ISS PBL23 START 44.891
HIERARCH ESO ISS PBL23 END 44.65
HIERARCH ESO ISS PBLA23 START 47.9
HIERARCH ESO ISS PBLA23 END 48.4
HIERARCH ESO ISS PBL24 START 84.872
HIERARCH ESO ISS PBL24 END 84.15
HIERARCH ESO ISS PBLA24 START 91.091
HIERARCH ESO ISS PBLA24 END 91.89
HIERARCH ESO ISS PBL34 START 60.512
HIERARCH ESO ISS PBL34 END 60.173
HIERARCH ESO ISS PBLA34 START 121.594
HIERARCH ESO ISS PBLA34 END 122.582
HIERARCH ESO ISS AMBI TAU0 START 0.011968
HIERARCH ESO ISS AMBI TAU0 END 0.011643
HIERARCH ESO ISS AMBI TEMP 15.66
HIERARCH ESO ISS AMBI FWHM START 0.25
HIERARCH ESO ISS AMBI FWHM END 0.26
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520