Exposure
- ID
- GRAVI.2023-07-31T01:18:55.549_2
- Header ID
- GRAVI.2023-07-31T01:18:55.549
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-31 01:25:28 UTC+0000
- UTC Start
- 2023-07-31 01:18:55.549
- UTC End
- 2023-07-31 01:20:55.549
- MJD Start
- 60156.05480959
- MJD End
- 60156.05619847889
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005628
- Ambient temperature (°C)
- 17.93
- Seeing (arcsec)
- 0.665
Observation
- ID
- 56478
- Category
- science
- Program ID
- 108.220D.004
- Program Title
- TOWARDS DETECTION OF SINGLE BLACK HOLES BY MICROLENSING AND INTERFEROMETRY
- Program Type
- Monitoring
- PI / COI
- MÉRAND / DONG / GOULD / WOILLEZ / UDALSKI / MROZ
Target
- ID
- 41854
- Name
- 2MASS_17352281-34063
- RA
- 263.8450791666666
- DEC
- -34.10850138888889
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 | 56.2220 | 56.2010 | 23.3000 | 23.6000 |
| U1-U3 | 102.0090 | 101.9700 | 29.6000 | 29.9000 |
| U1-U4 | 130.2100 | 130.2060 | 57.2110 | 57.5300 |
| U2-U3 | 46.5340 | 46.5180 | 37.2000 | 37.5000 |
| U2-U4 | 89.2260 | 89.2710 | 77.7790 | 78.1060 |
| U3-U4 | 61.7930 | 61.8630 | 107.1030 | 107.4030 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 108.220D.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60156.05480959 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | KB230686 |
| HIERARCH ESO INS SOBJ NAME | KB230686 |
| RA | 263.843946 |
| DEC | -34.10903 |
| HIERARCH ESO INS SPEC RES | LOW |
| 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 | 139.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 3.0 |
| HIERARCH ESO DET2 NDIT | 40 |
| HIERARCH ESO ISS PBL12 START | 56.222 |
| HIERARCH ESO ISS PBL12 END | 56.201 |
| HIERARCH ESO ISS PBLA12 START | 23.3 |
| HIERARCH ESO ISS PBLA12 END | 23.6 |
| HIERARCH ESO ISS PBL13 START | 102.009 |
| HIERARCH ESO ISS PBL13 END | 101.97 |
| HIERARCH ESO ISS PBLA13 START | 29.6 |
| HIERARCH ESO ISS PBLA13 END | 29.9 |
| HIERARCH ESO ISS PBL14 START | 130.21 |
| HIERARCH ESO ISS PBL14 END | 130.206 |
| HIERARCH ESO ISS PBLA14 START | 57.211 |
| HIERARCH ESO ISS PBLA14 END | 57.53 |
| HIERARCH ESO ISS PBL23 START | 46.534 |
| HIERARCH ESO ISS PBL23 END | 46.518 |
| HIERARCH ESO ISS PBLA23 START | 37.2 |
| HIERARCH ESO ISS PBLA23 END | 37.5 |
| HIERARCH ESO ISS PBL24 START | 89.226 |
| HIERARCH ESO ISS PBL24 END | 89.271 |
| HIERARCH ESO ISS PBLA24 START | 77.779 |
| HIERARCH ESO ISS PBLA24 END | 78.106 |
| HIERARCH ESO ISS PBL34 START | 61.793 |
| HIERARCH ESO ISS PBL34 END | 61.863 |
| HIERARCH ESO ISS PBLA34 START | 107.103 |
| HIERARCH ESO ISS PBLA34 END | 107.403 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005725 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005531 |
| HIERARCH ESO ISS AMBI TEMP | 17.93 |
| HIERARCH ESO ISS AMBI FWHM START | 0.67 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | 2MASS_17352281-34063 |
| HIERARCH ESO FT ROBJ ALPHA | 173522.819 |
| HIERARCH ESO FT ROBJ DELTA | -340630.605 |