Exposure
ID
GRAVI.2025-07-07T03:20:18.980_2
Header ID
GRAVI.2025-07-07T03:20:18.980
Date updated
2025-07-07 03:35:34 UTC+0000
Release date
2026-07-07 03:35:34 UTC+0000
UTC Start
2025-07-07 03:20:18.980
UTC End
2025-07-07 03:26:18.980
MJD Start
60863.13910857
MJD End
60863.14327523667
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.0065845
Ambient temperature (°C)
14.11
Seeing (arcsec)
0.57
Observation
ID
68254
Category
science
Program ID
115.27WT.003
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
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.4680 56.4300 25.3000 26.0000
U1-U3 102.3050 102.2290 31.7000 32.4000
U1-U4 130.1960 130.1270 59.6430 60.4090
U2-U3 46.6010 46.5650 39.4000 40.1000
U2-U4 89.4190 89.4250 80.5000 81.2840
U3-U4 62.3850 62.4440 109.9420 110.7050
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60863.13910857
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416203
DEC -29.00739
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 56.468
HIERARCH ESO ISS PBL12 END 56.43
HIERARCH ESO ISS PBLA12 START 25.3
HIERARCH ESO ISS PBLA12 END 26.0
HIERARCH ESO ISS PBL13 START 102.305
HIERARCH ESO ISS PBL13 END 102.229
HIERARCH ESO ISS PBLA13 START 31.7
HIERARCH ESO ISS PBLA13 END 32.4
HIERARCH ESO ISS PBL14 START 130.196
HIERARCH ESO ISS PBL14 END 130.127
HIERARCH ESO ISS PBLA14 START 59.643
HIERARCH ESO ISS PBLA14 END 60.409
HIERARCH ESO ISS PBL23 START 46.601
HIERARCH ESO ISS PBL23 END 46.565
HIERARCH ESO ISS PBLA23 START 39.4
HIERARCH ESO ISS PBLA23 END 40.1
HIERARCH ESO ISS PBL24 START 89.419
HIERARCH ESO ISS PBL24 END 89.425
HIERARCH ESO ISS PBLA24 START 80.5
HIERARCH ESO ISS PBLA24 END 81.284
HIERARCH ESO ISS PBL34 START 62.385
HIERARCH ESO ISS PBL34 END 62.444
HIERARCH ESO ISS PBLA34 START 109.942
HIERARCH ESO ISS PBLA34 END 110.705
HIERARCH ESO ISS AMBI TAU0 START 0.00597
HIERARCH ESO ISS AMBI TAU0 END 0.007199
HIERARCH ESO ISS AMBI TEMP 14.11
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520