Exposure
ID
GRAVI.2025-07-08T03:31:53.539_1
Header ID
GRAVI.2025-07-08T03:31:53.539
Date updated
2025-07-08 03:50:44 UTC+0000
Release date
2026-07-08 03:50:44 UTC+0000
UTC Start
2025-07-08 03:31:53.539
UTC End
2025-07-08 03:37:53.539
MJD Start
60864.14714744
MJD End
60864.15131410667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.014225000000000002
Ambient temperature (°C)
15.72
Seeing (arcsec)
0.42000000000000004
Observation
ID
68380
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
50815
Name
SGRA
RA
266.416348
DEC
-29.00729
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 56.3640 56.3070 27.0000 27.6000
U1-U3 102.0890 101.9640 33.3000 34.0000
U1-U4 129.9280 129.7110 61.4370 62.1750
U2-U3 46.4940 46.4270 41.1000 41.8000
U2-U4 89.3460 89.2240 82.3530 83.1320
U3-U4 62.4710 62.4510 111.7720 112.5680
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 60864.14714744
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416348
DEC -29.00729
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 56.364
HIERARCH ESO ISS PBL12 END 56.307
HIERARCH ESO ISS PBLA12 START 27.0
HIERARCH ESO ISS PBLA12 END 27.6
HIERARCH ESO ISS PBL13 START 102.089
HIERARCH ESO ISS PBL13 END 101.964
HIERARCH ESO ISS PBLA13 START 33.3
HIERARCH ESO ISS PBLA13 END 34.0
HIERARCH ESO ISS PBL14 START 129.928
HIERARCH ESO ISS PBL14 END 129.711
HIERARCH ESO ISS PBLA14 START 61.437
HIERARCH ESO ISS PBLA14 END 62.175
HIERARCH ESO ISS PBL23 START 46.494
HIERARCH ESO ISS PBL23 END 46.427
HIERARCH ESO ISS PBLA23 START 41.1
HIERARCH ESO ISS PBLA23 END 41.8
HIERARCH ESO ISS PBL24 START 89.346
HIERARCH ESO ISS PBL24 END 89.224
HIERARCH ESO ISS PBLA24 START 82.353
HIERARCH ESO ISS PBLA24 END 83.132
HIERARCH ESO ISS PBL34 START 62.471
HIERARCH ESO ISS PBL34 END 62.451
HIERARCH ESO ISS PBLA34 START 111.772
HIERARCH ESO ISS PBLA34 END 112.568
HIERARCH ESO ISS AMBI TAU0 START 0.014429
HIERARCH ESO ISS AMBI TAU0 END 0.014021
HIERARCH ESO ISS AMBI TEMP 15.72
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.34
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520