Exposure
ID
GRAVI.2025-07-08T03:38:56.557_2
Header ID
GRAVI.2025-07-08T03:38:56.557
Date updated
2025-07-08 03:55:37 UTC+0000
Release date
2026-07-08 03:55:37 UTC+0000
UTC Start
2025-07-08 03:38:56.557
UTC End
2025-07-08 03:44:56.557
MJD Start
60864.15204348
MJD End
60864.15621014666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0139635
Ambient temperature (°C)
15.88
Seeing (arcsec)
0.315
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 56.3020 56.2350 27.7000 28.4000
U1-U3 101.9530 101.8040 34.1000 34.7000
U1-U4 129.6880 129.4010 62.2390 62.9610
U2-U3 46.4200 46.3390 41.8000 42.5000
U2-U4 89.2110 89.0300 83.2000 83.9760
U3-U4 62.4480 62.3930 112.6390 113.4490
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 60864.15204348
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416422
DEC -29.00731
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 56.302
HIERARCH ESO ISS PBL12 END 56.235
HIERARCH ESO ISS PBLA12 START 27.7
HIERARCH ESO ISS PBLA12 END 28.4
HIERARCH ESO ISS PBL13 START 101.953
HIERARCH ESO ISS PBL13 END 101.804
HIERARCH ESO ISS PBLA13 START 34.1
HIERARCH ESO ISS PBLA13 END 34.7
HIERARCH ESO ISS PBL14 START 129.688
HIERARCH ESO ISS PBL14 END 129.401
HIERARCH ESO ISS PBLA14 START 62.239
HIERARCH ESO ISS PBLA14 END 62.961
HIERARCH ESO ISS PBL23 START 46.42
HIERARCH ESO ISS PBL23 END 46.339
HIERARCH ESO ISS PBLA23 START 41.8
HIERARCH ESO ISS PBLA23 END 42.5
HIERARCH ESO ISS PBL24 START 89.211
HIERARCH ESO ISS PBL24 END 89.03
HIERARCH ESO ISS PBLA24 START 83.2
HIERARCH ESO ISS PBLA24 END 83.976
HIERARCH ESO ISS PBL34 START 62.448
HIERARCH ESO ISS PBL34 END 62.393
HIERARCH ESO ISS PBLA34 START 112.639
HIERARCH ESO ISS PBLA34 END 113.449
HIERARCH ESO ISS AMBI TAU0 START 0.014021
HIERARCH ESO ISS AMBI TAU0 END 0.013906
HIERARCH ESO ISS AMBI TEMP 15.88
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.29
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520