Exposure
ID
GRAVI.2025-03-16T08:34:16.454_1
Header ID
GRAVI.2025-03-16T08:34:16.454
Date updated
2025-03-16 08:50:32 UTC+0000
Release date
2026-03-16 08:50:32 UTC+0000
UTC Start
2025-03-16 08:34:16.454
UTC End
2025-03-16 08:40:16.454
MJD Start
60750.35713489
MJD End
60750.361301556666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006265
Ambient temperature (°C)
13.54
Seeing (arcsec)
0.73
Observation
ID
65139
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
48510
Name
SGRA
RA
266.417545
DEC
-29.00722
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 56.3260 56.3450 8.7000 9.6000
U1-U3 101.3340 101.4260 14.2000 15.2000
U1-U4 121.4440 122.1850 40.0930 41.2850
U2-U3 45.5920 45.6800 21.0000 22.1000
U2-U4 79.0440 79.9420 61.9080 63.0320
U3-U4 53.6570 54.4280 95.7180 96.4170
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 60750.35713489
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417545
DEC -29.00722
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 56.326
HIERARCH ESO ISS PBL12 END 56.345
HIERARCH ESO ISS PBLA12 START 8.7
HIERARCH ESO ISS PBLA12 END 9.6
HIERARCH ESO ISS PBL13 START 101.334
HIERARCH ESO ISS PBL13 END 101.426
HIERARCH ESO ISS PBLA13 START 14.2
HIERARCH ESO ISS PBLA13 END 15.2
HIERARCH ESO ISS PBL14 START 121.444
HIERARCH ESO ISS PBL14 END 122.185
HIERARCH ESO ISS PBLA14 START 40.093
HIERARCH ESO ISS PBLA14 END 41.285
HIERARCH ESO ISS PBL23 START 45.592
HIERARCH ESO ISS PBL23 END 45.68
HIERARCH ESO ISS PBLA23 START 21.0
HIERARCH ESO ISS PBLA23 END 22.1
HIERARCH ESO ISS PBL24 START 79.044
HIERARCH ESO ISS PBL24 END 79.942
HIERARCH ESO ISS PBLA24 START 61.908
HIERARCH ESO ISS PBLA24 END 63.032
HIERARCH ESO ISS PBL34 START 53.657
HIERARCH ESO ISS PBL34 END 54.428
HIERARCH ESO ISS PBLA34 START 95.718
HIERARCH ESO ISS PBLA34 END 96.417
HIERARCH ESO ISS AMBI TAU0 START 0.007021
HIERARCH ESO ISS AMBI TAU0 END 0.005509
HIERARCH ESO ISS AMBI TEMP 13.54
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.79
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530