Exposure
- ID
- GRAVI.2023-07-29T03:15:16.197_2
- Header ID
- GRAVI.2023-07-29T03:15:16.197
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-29 03:30:40 UTC+0000
- UTC Start
- 2023-07-29 03:15:16.197
- UTC End
- 2023-07-29 03:21:56.197
- MJD Start
- 60154.13560413
- MJD End
- 60154.14023375963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0067775
- Ambient temperature (°C)
- 16.59
- Seeing (arcsec)
- 0.855
Observation
- ID
- 56447
- 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
- 41832
- Name
- 2MASS17430426-351519
- RA
- 265.7677666666666
- DEC
- -35.25541472222222
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 | 54.0000 | 53.7590 | 34.1000 | 34.8000 |
| U1-U3 | 97.3250 | 96.7930 | 40.7000 | 41.4000 |
| U1-U4 | 122.9780 | 121.9450 | 70.3580 | 71.1920 |
| U2-U3 | 44.1210 | 43.8290 | 48.8000 | 49.5000 |
| U2-U4 | 85.5760 | 84.9080 | 92.2430 | 93.2670 |
| U3-U4 | 61.5230 | 61.2830 | 121.7740 | 122.9190 |
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 | 60154.13560413 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | KB230496 |
| HIERARCH ESO INS SOBJ NAME | KB230496 |
| RA | 265.767476 |
| DEC | -35.25672 |
| 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 | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 54.0 |
| HIERARCH ESO ISS PBL12 END | 53.759 |
| HIERARCH ESO ISS PBLA12 START | 34.1 |
| HIERARCH ESO ISS PBLA12 END | 34.8 |
| HIERARCH ESO ISS PBL13 START | 97.325 |
| HIERARCH ESO ISS PBL13 END | 96.793 |
| HIERARCH ESO ISS PBLA13 START | 40.7 |
| HIERARCH ESO ISS PBLA13 END | 41.4 |
| HIERARCH ESO ISS PBL14 START | 122.978 |
| HIERARCH ESO ISS PBL14 END | 121.945 |
| HIERARCH ESO ISS PBLA14 START | 70.358 |
| HIERARCH ESO ISS PBLA14 END | 71.192 |
| HIERARCH ESO ISS PBL23 START | 44.121 |
| HIERARCH ESO ISS PBL23 END | 43.829 |
| HIERARCH ESO ISS PBLA23 START | 48.8 |
| HIERARCH ESO ISS PBLA23 END | 49.5 |
| HIERARCH ESO ISS PBL24 START | 85.576 |
| HIERARCH ESO ISS PBL24 END | 84.908 |
| HIERARCH ESO ISS PBLA24 START | 92.243 |
| HIERARCH ESO ISS PBLA24 END | 93.267 |
| HIERARCH ESO ISS PBL34 START | 61.523 |
| HIERARCH ESO ISS PBL34 END | 61.283 |
| HIERARCH ESO ISS PBLA34 START | 121.774 |
| HIERARCH ESO ISS PBLA34 END | 122.919 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007545 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00601 |
| HIERARCH ESO ISS AMBI TEMP | 16.59 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.93 |
| HIERARCH ESO FT ROBJ NAME | 2MASS17430426-351519 |
| HIERARCH ESO FT ROBJ ALPHA | 174304.264 |
| HIERARCH ESO FT ROBJ DELTA | -351519.493 |