Exposure
ID
GRAVI.2025-03-17T09:08:03.456_1
Header ID
GRAVI.2025-03-17T09:08:03.456
Date updated
2025-03-17 09:25:49 UTC+0000
Release date
2026-03-17 09:25:49 UTC+0000
UTC Start
2025-03-17 09:08:03.456
UTC End
2025-03-17 09:14:03.456
MJD Start
60751.38059556
MJD End
60751.38476222666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008043
Ambient temperature (°C)
14.91
Seeing (arcsec)
0.54
Observation
ID
65230
Category
science
Program ID
114.270V.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 / WIDMANN / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROU
Target
ID
48595
Name
SGRA
RA
266.417236
DEC
-29.00787
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 56.4480 56.4690 13.9000 14.7000
U1-U3 101.8750 101.9630 19.8000 20.7000
U1-U4 125.4990 126.1050 46.6820 47.7190
U2-U3 46.0910 46.1690 27.0000 28.0000
U2-U4 83.8250 84.5160 68.0750 69.0420
U3-U4 57.6690 58.2340 99.7540 100.4360
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.270V.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60751.38059556
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417236
DEC -29.00787
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 56.448
HIERARCH ESO ISS PBL12 END 56.469
HIERARCH ESO ISS PBLA12 START 13.9
HIERARCH ESO ISS PBLA12 END 14.7
HIERARCH ESO ISS PBL13 START 101.875
HIERARCH ESO ISS PBL13 END 101.963
HIERARCH ESO ISS PBLA13 START 19.8
HIERARCH ESO ISS PBLA13 END 20.7
HIERARCH ESO ISS PBL14 START 125.499
HIERARCH ESO ISS PBL14 END 126.105
HIERARCH ESO ISS PBLA14 START 46.682
HIERARCH ESO ISS PBLA14 END 47.719
HIERARCH ESO ISS PBL23 START 46.091
HIERARCH ESO ISS PBL23 END 46.169
HIERARCH ESO ISS PBLA23 START 27.0
HIERARCH ESO ISS PBLA23 END 28.0
HIERARCH ESO ISS PBL24 START 83.825
HIERARCH ESO ISS PBL24 END 84.516
HIERARCH ESO ISS PBLA24 START 68.075
HIERARCH ESO ISS PBLA24 END 69.042
HIERARCH ESO ISS PBL34 START 57.669
HIERARCH ESO ISS PBL34 END 58.234
HIERARCH ESO ISS PBLA34 START 99.754
HIERARCH ESO ISS PBLA34 END 100.436
HIERARCH ESO ISS AMBI TAU0 START 0.007211
HIERARCH ESO ISS AMBI TAU0 END 0.008875
HIERARCH ESO ISS AMBI TEMP 14.91
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.52
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530