Exposure
ID
GRAVI.2025-07-07T05:23:37.294_1
Header ID
GRAVI.2025-07-07T05:23:37.294
Date updated
2025-07-07 05:41:12 UTC+0000
Release date
2026-07-07 05:41:11 UTC+0000
UTC Start
2025-07-07 05:23:37.294
UTC End
2025-07-07 05:29:37.294
MJD Start
60863.2247372
MJD End
60863.228903866664
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006456
Ambient temperature (°C)
13.87
Seeing (arcsec)
0.54
Observation
ID
68269
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
50737
Name
SGRA
RA
266.416473
DEC
-29.00748
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 54.0110 53.7590 36.3000 36.7000
U1-U3 96.6500 96.0690 42.6000 43.0000
U1-U4 117.5250 116.1770 72.2910 72.8650
U2-U3 43.3740 43.0400 50.5000 50.9000
U2-U4 80.3450 79.3610 95.5480 96.4040
U3-U4 58.4230 57.9820 127.2470 128.3650
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 60863.2247372
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416473
DEC -29.00748
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 54.011
HIERARCH ESO ISS PBL12 END 53.759
HIERARCH ESO ISS PBLA12 START 36.3
HIERARCH ESO ISS PBLA12 END 36.7
HIERARCH ESO ISS PBL13 START 96.65
HIERARCH ESO ISS PBL13 END 96.069
HIERARCH ESO ISS PBLA13 START 42.6
HIERARCH ESO ISS PBLA13 END 43.0
HIERARCH ESO ISS PBL14 START 117.525
HIERARCH ESO ISS PBL14 END 116.177
HIERARCH ESO ISS PBLA14 START 72.291
HIERARCH ESO ISS PBLA14 END 72.865
HIERARCH ESO ISS PBL23 START 43.374
HIERARCH ESO ISS PBL23 END 43.04
HIERARCH ESO ISS PBLA23 START 50.5
HIERARCH ESO ISS PBLA23 END 50.9
HIERARCH ESO ISS PBL24 START 80.345
HIERARCH ESO ISS PBL24 END 79.361
HIERARCH ESO ISS PBLA24 START 95.548
HIERARCH ESO ISS PBLA24 END 96.404
HIERARCH ESO ISS PBL34 START 58.423
HIERARCH ESO ISS PBL34 END 57.982
HIERARCH ESO ISS PBLA34 START 127.247
HIERARCH ESO ISS PBLA34 END 128.365
HIERARCH ESO ISS AMBI TAU0 START 0.005882
HIERARCH ESO ISS AMBI TAU0 END 0.00703
HIERARCH ESO ISS AMBI TEMP 13.87
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.55
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520