Exposure
ID
GRAVI.2025-03-18T08:27:10.986_1
Header ID
GRAVI.2025-03-18T08:27:10.986
Date updated
2025-03-18 08:40:55 UTC+0000
Release date
2026-03-18 08:40:55 UTC+0000
UTC Start
2025-03-18 08:27:10.986
UTC End
2025-03-18 08:33:10.986
MJD Start
60752.35221049
MJD End
60752.35637715666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008064499999999999
Ambient temperature (°C)
15.66
Seeing (arcsec)
0.415
Observation
ID
65488
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
48752
Name
SGRA
RA
266.417212
DEC
-29.00783
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 56.3280 56.3480 8.8000 9.7000
U1-U3 101.3440 101.4360 14.3000 15.3000
U1-U4 121.5280 122.2690 40.2290 41.4190
U2-U3 45.6020 45.6900 21.1000 22.2000
U2-U4 79.1460 80.0420 62.0360 63.1580
U3-U4 53.7450 54.5130 95.7970 96.4970
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 60752.35221049
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417212
DEC -29.00783
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 56.328
HIERARCH ESO ISS PBL12 END 56.348
HIERARCH ESO ISS PBLA12 START 8.8
HIERARCH ESO ISS PBLA12 END 9.7
HIERARCH ESO ISS PBL13 START 101.344
HIERARCH ESO ISS PBL13 END 101.436
HIERARCH ESO ISS PBLA13 START 14.3
HIERARCH ESO ISS PBLA13 END 15.3
HIERARCH ESO ISS PBL14 START 121.528
HIERARCH ESO ISS PBL14 END 122.269
HIERARCH ESO ISS PBLA14 START 40.229
HIERARCH ESO ISS PBLA14 END 41.419
HIERARCH ESO ISS PBL23 START 45.602
HIERARCH ESO ISS PBL23 END 45.69
HIERARCH ESO ISS PBLA23 START 21.1
HIERARCH ESO ISS PBLA23 END 22.2
HIERARCH ESO ISS PBL24 START 79.146
HIERARCH ESO ISS PBL24 END 80.042
HIERARCH ESO ISS PBLA24 START 62.036
HIERARCH ESO ISS PBLA24 END 63.158
HIERARCH ESO ISS PBL34 START 53.745
HIERARCH ESO ISS PBL34 END 54.513
HIERARCH ESO ISS PBLA34 START 95.797
HIERARCH ESO ISS PBLA34 END 96.497
HIERARCH ESO ISS AMBI TAU0 START 0.007323
HIERARCH ESO ISS AMBI TAU0 END 0.008806
HIERARCH ESO ISS AMBI TEMP 15.66
HIERARCH ESO ISS AMBI FWHM START 0.42
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 -290027.6530