Exposure
ID
GRAVI.2024-06-25T02:30:47.269_1
Header ID
GRAVI.2024-06-25T02:30:47.269
Date updated
2024-06-25 02:45:31 UTC+0000
Release date
2025-06-25 02:45:31 UTC+0000
UTC Start
2024-06-25 02:30:47.269
UTC End
2024-06-25 02:36:07.269
MJD Start
60486.10471376
MJD End
60486.1084174637
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0028795
Ambient temperature (°C)
10.02
Seeing (arcsec)
0.695
Observation
ID
59769
Category
science
Program ID
113.268P.003
Program Title
THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
ID
44331
Name
SGRA
RA
266.416918
DEC
-29.00728
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 56.4380 56.4570 13.5000 14.2000
U1-U3 101.8320 101.9100 19.3000 20.1000
U1-U4 125.1920 125.7410 46.1620 47.0890
U2-U3 46.0520 46.1220 26.5000 27.4000
U2-U4 83.4720 84.1010 67.5910 68.4550
U3-U4 57.3790 57.8940 99.4170 100.0190
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.268P.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60486.10471376
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416918
DEC -29.00728
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 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 56.438
HIERARCH ESO ISS PBL12 END 56.457
HIERARCH ESO ISS PBLA12 START 13.5
HIERARCH ESO ISS PBLA12 END 14.2
HIERARCH ESO ISS PBL13 START 101.832
HIERARCH ESO ISS PBL13 END 101.91
HIERARCH ESO ISS PBLA13 START 19.3
HIERARCH ESO ISS PBLA13 END 20.1
HIERARCH ESO ISS PBL14 START 125.192
HIERARCH ESO ISS PBL14 END 125.741
HIERARCH ESO ISS PBLA14 START 46.162
HIERARCH ESO ISS PBLA14 END 47.089
HIERARCH ESO ISS PBL23 START 46.052
HIERARCH ESO ISS PBL23 END 46.122
HIERARCH ESO ISS PBLA23 START 26.5
HIERARCH ESO ISS PBLA23 END 27.4
HIERARCH ESO ISS PBL24 START 83.472
HIERARCH ESO ISS PBL24 END 84.101
HIERARCH ESO ISS PBLA24 START 67.591
HIERARCH ESO ISS PBLA24 END 68.455
HIERARCH ESO ISS PBL34 START 57.379
HIERARCH ESO ISS PBL34 END 57.894
HIERARCH ESO ISS PBLA34 START 99.417
HIERARCH ESO ISS PBLA34 END 100.019
HIERARCH ESO ISS AMBI TAU0 START 0.002917
HIERARCH ESO ISS AMBI TAU0 END 0.002842
HIERARCH ESO ISS AMBI TEMP 10.02
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.69
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1000
HIERARCH ESO FT ROBJ DELTA -290027.6541