Exposure
ID
GRAVI.2025-05-13T04:54:43.489_1
Header ID
GRAVI.2025-05-13T04:54:43.489
Date updated
2025-05-13 06:56:31 UTC+0000
Release date
2026-05-13 06:56:30 UTC+0000
UTC Start
2025-05-13 04:54:43.489
UTC End
2025-05-13 05:00:43.489
MJD Start
60808.20467001
MJD End
60808.20883667667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0066064999999999995
Ambient temperature (°C)
16.95
Seeing (arcsec)
0.54
Observation
ID
67316
Category
science
Program ID
115.27WT.001
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
50057
Name
SGRA
RA
266.41622
DEC
-29.00743
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 56.3520 56.3720 9.9000 10.7000
U1-U3 101.4540 101.5470 15.5000 16.4000
U1-U4 122.4090 123.1260 41.6430 42.7940
U2-U3 45.7060 45.7930 22.4000 23.4000
U2-U4 80.2100 81.0640 63.3680 64.4470
U3-U4 54.6560 55.3780 96.6290 97.3190
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60808.20467001
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41622
DEC -29.00743
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 56.352
HIERARCH ESO ISS PBL12 END 56.372
HIERARCH ESO ISS PBLA12 START 9.9
HIERARCH ESO ISS PBLA12 END 10.7
HIERARCH ESO ISS PBL13 START 101.454
HIERARCH ESO ISS PBL13 END 101.547
HIERARCH ESO ISS PBLA13 START 15.5
HIERARCH ESO ISS PBLA13 END 16.4
HIERARCH ESO ISS PBL14 START 122.409
HIERARCH ESO ISS PBL14 END 123.126
HIERARCH ESO ISS PBLA14 START 41.643
HIERARCH ESO ISS PBLA14 END 42.794
HIERARCH ESO ISS PBL23 START 45.706
HIERARCH ESO ISS PBL23 END 45.793
HIERARCH ESO ISS PBLA23 START 22.4
HIERARCH ESO ISS PBLA23 END 23.4
HIERARCH ESO ISS PBL24 START 80.21
HIERARCH ESO ISS PBL24 END 81.064
HIERARCH ESO ISS PBLA24 START 63.368
HIERARCH ESO ISS PBLA24 END 64.447
HIERARCH ESO ISS PBL34 START 54.656
HIERARCH ESO ISS PBL34 END 55.378
HIERARCH ESO ISS PBLA34 START 96.629
HIERARCH ESO ISS PBLA34 END 97.319
HIERARCH ESO ISS AMBI TAU0 START 0.006707
HIERARCH ESO ISS AMBI TAU0 END 0.006506
HIERARCH ESO ISS AMBI TEMP 16.95
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.54
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530