Exposure
- ID
- GRAVI.2023-09-28T23:37:55.930_2
- Header ID
- GRAVI.2023-09-28T23:37:55.930
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-09-28 23:50:39 UTC+0000
- UTC Start
- 2023-09-28 23:37:55.930
- UTC End
- 2023-09-28 23:43:55.930
- MJD Start
- 60215.98467511
- MJD End
- 60215.98884177666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0042685
- Ambient temperature (°C)
- 13.31
- Seeing (arcsec)
- 0.895
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 | 53.0030 | 52.7330 | 36.5000 | 37.0000 |
| U1-U3 | 95.1200 | 94.5220 | 43.1000 | 43.6000 |
| U1-U4 | 118.6560 | 117.4690 | 73.5130 | 74.2580 |
| U2-U3 | 42.9130 | 42.5840 | 51.3000 | 51.9000 |
| U2-U4 | 82.7610 | 81.9840 | 96.2080 | 97.1830 |
| U3-U4 | 60.4890 | 60.1990 | 126.2520 | 127.3700 |
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 | 60215.98467511 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | KB230496 |
| HIERARCH ESO INS SOBJ NAME | KB230496 |
| RA | 265.767366 |
| DEC | -35.25673 |
| 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 | 375.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 53.003 |
| HIERARCH ESO ISS PBL12 END | 52.733 |
| HIERARCH ESO ISS PBLA12 START | 36.5 |
| HIERARCH ESO ISS PBLA12 END | 37.0 |
| HIERARCH ESO ISS PBL13 START | 95.12 |
| HIERARCH ESO ISS PBL13 END | 94.522 |
| HIERARCH ESO ISS PBLA13 START | 43.1 |
| HIERARCH ESO ISS PBLA13 END | 43.6 |
| HIERARCH ESO ISS PBL14 START | 118.656 |
| HIERARCH ESO ISS PBL14 END | 117.469 |
| HIERARCH ESO ISS PBLA14 START | 73.513 |
| HIERARCH ESO ISS PBLA14 END | 74.258 |
| HIERARCH ESO ISS PBL23 START | 42.913 |
| HIERARCH ESO ISS PBL23 END | 42.584 |
| HIERARCH ESO ISS PBLA23 START | 51.3 |
| HIERARCH ESO ISS PBLA23 END | 51.9 |
| HIERARCH ESO ISS PBL24 START | 82.761 |
| HIERARCH ESO ISS PBL24 END | 81.984 |
| HIERARCH ESO ISS PBLA24 START | 96.208 |
| HIERARCH ESO ISS PBLA24 END | 97.183 |
| HIERARCH ESO ISS PBL34 START | 60.489 |
| HIERARCH ESO ISS PBL34 END | 60.199 |
| HIERARCH ESO ISS PBLA34 START | 126.252 |
| HIERARCH ESO ISS PBLA34 END | 127.37 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003996 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004541 |
| HIERARCH ESO ISS AMBI TEMP | 13.31 |
| HIERARCH ESO ISS AMBI FWHM START | 0.98 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | 2MASS17430426-351519 |
| HIERARCH ESO FT ROBJ ALPHA | 174304.264 |
| HIERARCH ESO FT ROBJ DELTA | -351519.493 |