Exposure
ID
GRAVI.2025-07-08T05:38:26.861_2
Header ID
GRAVI.2025-07-08T05:38:26.861
Date updated
2025-07-08 05:55:44 UTC+0000
Release date
2026-07-08 05:55:44 UTC+0000
UTC Start
2025-07-08 05:38:26.861
UTC End
2025-07-08 05:44:26.861
MJD Start
60864.23503311
MJD End
60864.23919977667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.007357
Ambient temperature (°C)
15.57
Seeing (arcsec)
0.4
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 53.2390 52.9440 37.5000 37.9000
U1-U3 94.8700 94.1930 43.8000 44.1000
U1-U4 113.4100 111.8560 73.9480 74.5110
U2-U3 42.3510 41.9630 51.7000 52.0000
U2-U4 77.3530 76.2320 98.0850 98.9970
U3-U4 57.1010 56.6190 130.5820 131.7930
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 60864.23503311
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416492
DEC -29.00742
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 53.239
HIERARCH ESO ISS PBL12 END 52.944
HIERARCH ESO ISS PBLA12 START 37.5
HIERARCH ESO ISS PBLA12 END 37.9
HIERARCH ESO ISS PBL13 START 94.87
HIERARCH ESO ISS PBL13 END 94.193
HIERARCH ESO ISS PBLA13 START 43.8
HIERARCH ESO ISS PBLA13 END 44.1
HIERARCH ESO ISS PBL14 START 113.41
HIERARCH ESO ISS PBL14 END 111.856
HIERARCH ESO ISS PBLA14 START 73.948
HIERARCH ESO ISS PBLA14 END 74.511
HIERARCH ESO ISS PBL23 START 42.351
HIERARCH ESO ISS PBL23 END 41.963
HIERARCH ESO ISS PBLA23 START 51.7
HIERARCH ESO ISS PBLA23 END 52.0
HIERARCH ESO ISS PBL24 START 77.353
HIERARCH ESO ISS PBL24 END 76.232
HIERARCH ESO ISS PBLA24 START 98.085
HIERARCH ESO ISS PBLA24 END 98.997
HIERARCH ESO ISS PBL34 START 57.101
HIERARCH ESO ISS PBL34 END 56.619
HIERARCH ESO ISS PBLA34 START 130.582
HIERARCH ESO ISS PBLA34 END 131.793
HIERARCH ESO ISS AMBI TAU0 START 0.008206
HIERARCH ESO ISS AMBI TAU0 END 0.006508
HIERARCH ESO ISS AMBI TEMP 15.57
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.43
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520