Exposure
ID
GRAVI.2025-07-08T03:01:05.460_1
Header ID
GRAVI.2025-07-08T03:01:05.460
Date updated
2025-07-08 03:15:24 UTC+0000
Release date
2026-07-08 03:15:24 UTC+0000
UTC Start
2025-07-08 03:01:05.460
UTC End
2025-07-08 03:07:05.460
MJD Start
60864.12575764
MJD End
60864.12992430667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.014684
Ambient temperature (°C)
15.46
Seeing (arcsec)
0.455
Observation
ID
68377
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
50812
Name
SGRA
RA
266.416183
DEC
-29.00739
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 56.5290 56.5080 23.6000 24.3000
U1-U3 102.4130 102.3800 29.9000 30.6000
U1-U4 130.1260 130.1950 57.7400 58.5440
U2-U3 46.6400 46.6320 37.5000 38.3000
U2-U4 89.1900 89.3230 78.5890 79.3900
U3-U4 62.1060 62.2470 108.1470 108.8880
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 60864.12575764
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416183
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 56.529
HIERARCH ESO ISS PBL12 END 56.508
HIERARCH ESO ISS PBLA12 START 23.6
HIERARCH ESO ISS PBLA12 END 24.3
HIERARCH ESO ISS PBL13 START 102.413
HIERARCH ESO ISS PBL13 END 102.38
HIERARCH ESO ISS PBLA13 START 29.9
HIERARCH ESO ISS PBLA13 END 30.6
HIERARCH ESO ISS PBL14 START 130.126
HIERARCH ESO ISS PBL14 END 130.195
HIERARCH ESO ISS PBLA14 START 57.74
HIERARCH ESO ISS PBLA14 END 58.544
HIERARCH ESO ISS PBL23 START 46.64
HIERARCH ESO ISS PBL23 END 46.632
HIERARCH ESO ISS PBLA23 START 37.5
HIERARCH ESO ISS PBLA23 END 38.3
HIERARCH ESO ISS PBL24 START 89.19
HIERARCH ESO ISS PBL24 END 89.323
HIERARCH ESO ISS PBLA24 START 78.589
HIERARCH ESO ISS PBLA24 END 79.39
HIERARCH ESO ISS PBL34 START 62.106
HIERARCH ESO ISS PBL34 END 62.247
HIERARCH ESO ISS PBLA34 START 108.147
HIERARCH ESO ISS PBLA34 END 108.888
HIERARCH ESO ISS AMBI TAU0 START 0.016725
HIERARCH ESO ISS AMBI TAU0 END 0.012643
HIERARCH ESO ISS AMBI TEMP 15.46
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.46
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520