Exposure
- ID
- GRAVI.2023-07-31T01:24:19.562_2
- Header ID
- GRAVI.2023-07-31T01:24:19.562
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-31 01:35:25 UTC+0000
- UTC Start
- 2023-07-31 01:24:19.562
- UTC End
- 2023-07-31 01:26:19.562
- MJD Start
- 60156.05855975
- MJD End
- 60156.05994863889
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00543
- Ambient temperature (°C)
- 17.97
- Seeing (arcsec)
- 0.685
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 | 56.1710 | 56.1490 | 24.0000 | 24.2000 |
| U1-U3 | 101.9120 | 101.8680 | 30.3000 | 30.6000 |
| U1-U4 | 130.1890 | 130.1700 | 57.9700 | 58.2880 |
| U2-U3 | 46.4930 | 46.4730 | 37.9000 | 38.2000 |
| U2-U4 | 89.3250 | 89.3570 | 78.5570 | 78.8850 |
| U3-U4 | 61.9550 | 62.0160 | 107.8200 | 108.1250 |
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 | 60156.05855975 |
| 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 | 56.171 |
| HIERARCH ESO ISS PBL12 END | 56.149 |
| HIERARCH ESO ISS PBLA12 START | 24.0 |
| HIERARCH ESO ISS PBLA12 END | 24.2 |
| HIERARCH ESO ISS PBL13 START | 101.912 |
| HIERARCH ESO ISS PBL13 END | 101.868 |
| HIERARCH ESO ISS PBLA13 START | 30.3 |
| HIERARCH ESO ISS PBLA13 END | 30.6 |
| HIERARCH ESO ISS PBL14 START | 130.189 |
| HIERARCH ESO ISS PBL14 END | 130.17 |
| HIERARCH ESO ISS PBLA14 START | 57.97 |
| HIERARCH ESO ISS PBLA14 END | 58.288 |
| HIERARCH ESO ISS PBL23 START | 46.493 |
| HIERARCH ESO ISS PBL23 END | 46.473 |
| HIERARCH ESO ISS PBLA23 START | 37.9 |
| HIERARCH ESO ISS PBLA23 END | 38.2 |
| HIERARCH ESO ISS PBL24 START | 89.325 |
| HIERARCH ESO ISS PBL24 END | 89.357 |
| HIERARCH ESO ISS PBLA24 START | 78.557 |
| HIERARCH ESO ISS PBLA24 END | 78.885 |
| HIERARCH ESO ISS PBL34 START | 61.955 |
| HIERARCH ESO ISS PBL34 END | 62.016 |
| HIERARCH ESO ISS PBLA34 START | 107.82 |
| HIERARCH ESO ISS PBLA34 END | 108.125 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005437 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005423 |
| HIERARCH ESO ISS AMBI TEMP | 17.97 |
| HIERARCH ESO ISS AMBI FWHM START | 0.65 |
| HIERARCH ESO ISS AMBI FWHM END | 0.72 |
| HIERARCH ESO FT ROBJ NAME | 2MASS_17352281-34063 |
| HIERARCH ESO FT ROBJ ALPHA | 173522.819 |
| HIERARCH ESO FT ROBJ DELTA | -340630.605 |