Exposure
ID
GRAVI.2025-05-12T05:26:40.479_1
Header ID
GRAVI.2025-05-12T05:26:40.479
Date updated
2025-05-12 19:45:47 UTC+0000
Release date
2026-05-12 19:45:45 UTC+0000
UTC Start
2025-05-12 05:26:40.479
UTC End
2025-05-12 05:32:40.479
MJD Start
60807.2268574
MJD End
60807.23102406666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.00647
Ambient temperature (°C)
17.42
Seeing (arcsec)
0.645
Observation
ID
67245
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
49987
Name
SGRA
RA
266.416263
DEC
-29.0074
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 56.4440 56.4650 13.7000 14.6000
U1-U3 101.8580 101.9470 19.6000 20.5000
U1-U4 125.3770 125.9930 46.4730 47.5210
U2-U3 46.0760 46.1550 26.8000 27.8000
U2-U4 83.6850 84.3880 67.8810 68.8570
U3-U4 57.5540 58.1280 99.6180 100.3040
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 60807.2268574
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416263
DEC -29.0074
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 56.444
HIERARCH ESO ISS PBL12 END 56.465
HIERARCH ESO ISS PBLA12 START 13.7
HIERARCH ESO ISS PBLA12 END 14.6
HIERARCH ESO ISS PBL13 START 101.858
HIERARCH ESO ISS PBL13 END 101.947
HIERARCH ESO ISS PBLA13 START 19.6
HIERARCH ESO ISS PBLA13 END 20.5
HIERARCH ESO ISS PBL14 START 125.377
HIERARCH ESO ISS PBL14 END 125.993
HIERARCH ESO ISS PBLA14 START 46.473
HIERARCH ESO ISS PBLA14 END 47.521
HIERARCH ESO ISS PBL23 START 46.076
HIERARCH ESO ISS PBL23 END 46.155
HIERARCH ESO ISS PBLA23 START 26.8
HIERARCH ESO ISS PBLA23 END 27.8
HIERARCH ESO ISS PBL24 START 83.685
HIERARCH ESO ISS PBL24 END 84.388
HIERARCH ESO ISS PBLA24 START 67.881
HIERARCH ESO ISS PBLA24 END 68.857
HIERARCH ESO ISS PBL34 START 57.554
HIERARCH ESO ISS PBL34 END 58.128
HIERARCH ESO ISS PBLA34 START 99.618
HIERARCH ESO ISS PBLA34 END 100.304
HIERARCH ESO ISS AMBI TAU0 START 0.00681
HIERARCH ESO ISS AMBI TAU0 END 0.00613
HIERARCH ESO ISS AMBI TEMP 17.42
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.69
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530