Exposure
ID
GRAVI.2025-07-08T04:23:11.669_2
Header ID
GRAVI.2025-07-08T04:23:11.669
Date updated
2025-07-08 04:40:44 UTC+0000
Release date
2026-07-08 04:40:43 UTC+0000
UTC Start
2025-07-08 04:23:11.669
UTC End
2025-07-08 04:29:11.669
MJD Start
60864.18277395
MJD End
60864.186940616666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008986000000000001
Ambient temperature (°C)
15.79
Seeing (arcsec)
0.30000000000000004
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 55.6470 55.5090 31.9000 32.5000
U1-U3 100.4490 100.1290 38.3000 38.9000
U1-U4 126.3970 125.6540 66.9450 67.5860
U2-U3 45.5670 45.3820 46.1000 46.7000
U2-U4 86.8900 86.3430 88.4960 89.2720
U3-U4 61.4580 61.2020 118.4810 119.3950
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 60864.18277395
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.41648
DEC -29.00737
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 55.647
HIERARCH ESO ISS PBL12 END 55.509
HIERARCH ESO ISS PBLA12 START 31.9
HIERARCH ESO ISS PBLA12 END 32.5
HIERARCH ESO ISS PBL13 START 100.449
HIERARCH ESO ISS PBL13 END 100.129
HIERARCH ESO ISS PBLA13 START 38.3
HIERARCH ESO ISS PBLA13 END 38.9
HIERARCH ESO ISS PBL14 START 126.397
HIERARCH ESO ISS PBL14 END 125.654
HIERARCH ESO ISS PBLA14 START 66.945
HIERARCH ESO ISS PBLA14 END 67.586
HIERARCH ESO ISS PBL23 START 45.567
HIERARCH ESO ISS PBL23 END 45.382
HIERARCH ESO ISS PBLA23 START 46.1
HIERARCH ESO ISS PBLA23 END 46.7
HIERARCH ESO ISS PBL24 START 86.89
HIERARCH ESO ISS PBL24 END 86.343
HIERARCH ESO ISS PBLA24 START 88.496
HIERARCH ESO ISS PBLA24 END 89.272
HIERARCH ESO ISS PBL34 START 61.458
HIERARCH ESO ISS PBL34 END 61.202
HIERARCH ESO ISS PBLA34 START 118.481
HIERARCH ESO ISS PBLA34 END 119.395
HIERARCH ESO ISS AMBI TAU0 START 0.008292
HIERARCH ESO ISS AMBI TAU0 END 0.00968
HIERARCH ESO ISS AMBI TEMP 15.79
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.28
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520