Exposure
ID
GRAVI.2024-03-27T05:02:41.074_1
Header ID
GRAVI.2024-03-27T05:02:41.074
Date updated
2024-03-27 05:10:23 UTC+0000
Release date
2025-03-27 05:10:23 UTC+0000
UTC Start
2024-03-27 05:02:41.074
UTC End
2024-03-27 05:04:41.074
MJD Start
60396.21019761
MJD End
60396.2115864989
Exposure time (s)
120.0
Validation level
1
Tau 0: Coherence time (s)
0.0054765
Ambient temperature (°C)
13.82
Seeing (arcsec)
0.79
Observation
ID
58842
Category
science
Program ID
113.26T9.001
Program Title
FIRST SYSTEMATIC SEARCH FOR PARSEC-SCALE SUPERMASSIVE BLACK HOLE BINARIES WITH VLTI/GRAVITY
Program Type
Normal
PI / COI
SHANGGUAN / SHIMIZU / GENZEL / DAVIES / STURM / LUTZ / EISENHAUER / TACCONI / FORSTER SCHREIBER / DEXTER / SANTOS / CAO / HOENIG / PERRIN / PETROV / PAUMARD / CLÉNET / DE ZEEUW / LEFTLEY / SYKES / LI
Target
ID
43565
Name
NGC_4507
RA
188.905575
DEC
-39.90869
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 54.8270 54.7730 27.4000 27.7000
U1-U3 99.6190 99.5080 33.9000 34.2000
U1-U4 128.8380 128.6960 61.9870 62.3520
U2-U3 45.5660 45.5110 41.7000 42.0000
U2-U4 89.2910 89.2480 82.3790 82.7730
U3-U4 62.2710 62.3080 110.8640 111.2480
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26T9.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60396.21019761
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME NGC 4507
HIERARCH ESO INS SOBJ NAME NGC_4507
RA 188.905575
DEC -39.90869
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
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 150.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 120
HIERARCH ESO ISS PBL12 START 54.827
HIERARCH ESO ISS PBL12 END 54.773
HIERARCH ESO ISS PBLA12 START 27.4
HIERARCH ESO ISS PBLA12 END 27.7
HIERARCH ESO ISS PBL13 START 99.619
HIERARCH ESO ISS PBL13 END 99.508
HIERARCH ESO ISS PBLA13 START 33.9
HIERARCH ESO ISS PBLA13 END 34.2
HIERARCH ESO ISS PBL14 START 128.838
HIERARCH ESO ISS PBL14 END 128.696
HIERARCH ESO ISS PBLA14 START 61.987
HIERARCH ESO ISS PBLA14 END 62.352
HIERARCH ESO ISS PBL23 START 45.566
HIERARCH ESO ISS PBL23 END 45.511
HIERARCH ESO ISS PBLA23 START 41.7
HIERARCH ESO ISS PBLA23 END 42.0
HIERARCH ESO ISS PBL24 START 89.291
HIERARCH ESO ISS PBL24 END 89.248
HIERARCH ESO ISS PBLA24 START 82.379
HIERARCH ESO ISS PBLA24 END 82.773
HIERARCH ESO ISS PBL34 START 62.271
HIERARCH ESO ISS PBL34 END 62.308
HIERARCH ESO ISS PBLA34 START 110.864
HIERARCH ESO ISS PBLA34 END 111.248
HIERARCH ESO ISS AMBI TAU0 START 0.006108
HIERARCH ESO ISS AMBI TAU0 END 0.004845
HIERARCH ESO ISS AMBI TEMP 13.82
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.93