Exposure
ID
GRAVI.2025-06-10T05:23:35.493_1
Header ID
GRAVI.2025-06-10T05:23:35.493
Date updated
2025-06-10 05:41:14 UTC+0000
Release date
2026-06-10 05:41:14 UTC+0000
UTC Start
2025-06-10 05:23:35.493
UTC End
2025-06-10 05:29:35.493
MJD Start
60836.22471635
MJD End
60836.228883016665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0070030000000000005
Ambient temperature (°C)
12.77
Seeing (arcsec)
0.515
Observation
ID
67888
Category
science
Program ID
115.27WT.002
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
50486
Name
SGRA
RA
266.416743
DEC
-29.00727
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 56.3510 56.2920 27.2000 27.8000
U1-U3 102.0600 101.9300 33.5000 34.2000
U1-U4 129.8800 129.6460 61.6500 62.3770
U2-U3 46.4780 46.4080 41.3000 41.9000
U2-U4 89.3200 89.1850 82.5750 83.3470
U3-U4 62.4690 62.4410 111.9970 112.7890
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60836.22471635
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416743
DEC -29.00727
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 56.351
HIERARCH ESO ISS PBL12 END 56.292
HIERARCH ESO ISS PBLA12 START 27.2
HIERARCH ESO ISS PBLA12 END 27.8
HIERARCH ESO ISS PBL13 START 102.06
HIERARCH ESO ISS PBL13 END 101.93
HIERARCH ESO ISS PBLA13 START 33.5
HIERARCH ESO ISS PBLA13 END 34.2
HIERARCH ESO ISS PBL14 START 129.88
HIERARCH ESO ISS PBL14 END 129.646
HIERARCH ESO ISS PBLA14 START 61.65
HIERARCH ESO ISS PBLA14 END 62.377
HIERARCH ESO ISS PBL23 START 46.478
HIERARCH ESO ISS PBL23 END 46.408
HIERARCH ESO ISS PBLA23 START 41.3
HIERARCH ESO ISS PBLA23 END 41.9
HIERARCH ESO ISS PBL24 START 89.32
HIERARCH ESO ISS PBL24 END 89.185
HIERARCH ESO ISS PBLA24 START 82.575
HIERARCH ESO ISS PBLA24 END 83.347
HIERARCH ESO ISS PBL34 START 62.469
HIERARCH ESO ISS PBL34 END 62.441
HIERARCH ESO ISS PBLA34 START 111.997
HIERARCH ESO ISS PBLA34 END 112.789
HIERARCH ESO ISS AMBI TAU0 START 0.007076
HIERARCH ESO ISS AMBI TAU0 END 0.00693
HIERARCH ESO ISS AMBI TEMP 12.77
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.57
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530