Exposure
ID
GRAVI.2025-07-07T04:14:28.118_1
Header ID
GRAVI.2025-07-07T04:14:28.118
Date updated
2025-07-07 04:35:37 UTC+0000
Release date
2026-07-07 04:35:37 UTC+0000
UTC Start
2025-07-07 04:14:28.118
UTC End
2025-07-07 04:20:28.118
MJD Start
60863.17671433
MJD End
60863.18088099667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008537
Ambient temperature (°C)
14.23
Seeing (arcsec)
0.405
Observation
ID
68261
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
50729
Name
SGRA
RA
266.416504
DEC
-29.00747
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 55.8850 55.7690 30.8000 31.4000
U1-U3 101.0000 100.7330 37.2000 37.8000
U1-U4 127.6590 127.0500 65.6580 66.3180
U2-U3 45.8840 45.7300 45.0000 45.6000
U2-U4 87.8110 87.3680 86.9840 87.7520
U3-U4 61.8820 61.6790 116.7390 117.6170
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 60863.17671433
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416504
DEC -29.00747
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 55.885
HIERARCH ESO ISS PBL12 END 55.769
HIERARCH ESO ISS PBLA12 START 30.8
HIERARCH ESO ISS PBLA12 END 31.4
HIERARCH ESO ISS PBL13 START 101.0
HIERARCH ESO ISS PBL13 END 100.733
HIERARCH ESO ISS PBLA13 START 37.2
HIERARCH ESO ISS PBLA13 END 37.8
HIERARCH ESO ISS PBL14 START 127.659
HIERARCH ESO ISS PBL14 END 127.05
HIERARCH ESO ISS PBLA14 START 65.658
HIERARCH ESO ISS PBLA14 END 66.318
HIERARCH ESO ISS PBL23 START 45.884
HIERARCH ESO ISS PBL23 END 45.73
HIERARCH ESO ISS PBLA23 START 45.0
HIERARCH ESO ISS PBLA23 END 45.6
HIERARCH ESO ISS PBL24 START 87.811
HIERARCH ESO ISS PBL24 END 87.368
HIERARCH ESO ISS PBLA24 START 86.984
HIERARCH ESO ISS PBLA24 END 87.752
HIERARCH ESO ISS PBL34 START 61.882
HIERARCH ESO ISS PBL34 END 61.679
HIERARCH ESO ISS PBLA34 START 116.739
HIERARCH ESO ISS PBLA34 END 117.617
HIERARCH ESO ISS AMBI TAU0 START 0.008658
HIERARCH ESO ISS AMBI TAU0 END 0.008416
HIERARCH ESO ISS AMBI TEMP 14.23
HIERARCH ESO ISS AMBI FWHM START 0.4
HIERARCH ESO ISS AMBI FWHM END 0.41
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520