Exposure
ID
GRAVI.2025-03-17T07:32:00.212_1
Header ID
GRAVI.2025-03-17T07:32:00.212
Date updated
2025-03-17 07:45:39 UTC+0000
Release date
2026-03-17 07:45:38 UTC+0000
UTC Start
2025-03-17 07:32:00.212
UTC End
2025-03-17 07:38:00.212
MJD Start
60751.31389134
MJD End
60751.31805800667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.009922
Ambient temperature (°C)
14.96
Seeing (arcsec)
0.41500000000000004
Observation
ID
65219
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
48584
Name
SGRA
RA
266.417245
DEC
-29.00785
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 56.2280 56.2290 0.3000 1.2000
U1-U3 100.7070 100.7500 4.9000 6.0000
U1-U4 114.6080 115.3360 28.0620 29.5090
U2-U3 44.9030 44.9640 10.8000 12.0000
U2-U4 69.9780 71.0330 50.0780 51.5630
U3-U4 45.2530 46.3040 88.9910 89.7910
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 60751.31389134
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.417245
DEC -29.00785
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 56.228
HIERARCH ESO ISS PBL12 END 56.229
HIERARCH ESO ISS PBLA12 START 0.3
HIERARCH ESO ISS PBLA12 END 1.2
HIERARCH ESO ISS PBL13 START 100.707
HIERARCH ESO ISS PBL13 END 100.75
HIERARCH ESO ISS PBLA13 START 4.9
HIERARCH ESO ISS PBLA13 END 6.0
HIERARCH ESO ISS PBL14 START 114.608
HIERARCH ESO ISS PBL14 END 115.336
HIERARCH ESO ISS PBLA14 START 28.062
HIERARCH ESO ISS PBLA14 END 29.509
HIERARCH ESO ISS PBL23 START 44.903
HIERARCH ESO ISS PBL23 END 44.964
HIERARCH ESO ISS PBLA23 START 10.8
HIERARCH ESO ISS PBLA23 END 12.0
HIERARCH ESO ISS PBL24 START 69.978
HIERARCH ESO ISS PBL24 END 71.033
HIERARCH ESO ISS PBLA24 START 50.078
HIERARCH ESO ISS PBLA24 END 51.563
HIERARCH ESO ISS PBL34 START 45.253
HIERARCH ESO ISS PBL34 END 46.304
HIERARCH ESO ISS PBLA34 START 88.991
HIERARCH ESO ISS PBLA34 END 89.791
HIERARCH ESO ISS AMBI TAU0 START 0.010232
HIERARCH ESO ISS AMBI TAU0 END 0.009612
HIERARCH ESO ISS AMBI TEMP 14.96
HIERARCH ESO ISS AMBI FWHM START 0.37
HIERARCH ESO ISS AMBI FWHM END 0.46
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6530