Exposure
- ID
- GRAVI.2023-07-29T02:21:22.061_1
- Header ID
- GRAVI.2023-07-29T02:21:22.061
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-29 02:31:07 UTC+0000
- UTC Start
- 2023-07-29 02:21:22.061
- UTC End
- 2023-07-29 02:23:22.061
- MJD Start
- 60154.098172
- MJD End
- 60154.099560888884
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007326
- Ambient temperature (°C)
- 16.2
- Seeing (arcsec)
- 0.625
Observation
- ID
- 56444
- 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
- 41829
- Name
- P1954_B
- RA
- 277.676701
- DEC
- -29.60772
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 56.5230 | 56.5160 | 23.1000 | 23.4000 |
| U1-U3 | 102.4110 | 102.4010 | 29.4000 | 29.7000 |
| U1-U4 | 130.0870 | 130.1250 | 57.2170 | 57.5130 |
| U2-U3 | 46.6410 | 46.6390 | 37.0000 | 37.3000 |
| U2-U4 | 89.0990 | 89.1610 | 78.0450 | 78.3380 |
| U3-U4 | 61.9780 | 62.0410 | 107.6300 | 107.8960 |
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 | 60154.098172 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | P1954 |
| HIERARCH ESO INS SOBJ NAME | P1954_B |
| RA | 277.676701 |
| DEC | -29.60772 |
| 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 | 139.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 3.0 |
| HIERARCH ESO DET2 NDIT | 40 |
| HIERARCH ESO ISS PBL12 START | 56.523 |
| HIERARCH ESO ISS PBL12 END | 56.516 |
| HIERARCH ESO ISS PBLA12 START | 23.1 |
| HIERARCH ESO ISS PBLA12 END | 23.4 |
| HIERARCH ESO ISS PBL13 START | 102.411 |
| HIERARCH ESO ISS PBL13 END | 102.401 |
| HIERARCH ESO ISS PBLA13 START | 29.4 |
| HIERARCH ESO ISS PBLA13 END | 29.7 |
| HIERARCH ESO ISS PBL14 START | 130.087 |
| HIERARCH ESO ISS PBL14 END | 130.125 |
| HIERARCH ESO ISS PBLA14 START | 57.217 |
| HIERARCH ESO ISS PBLA14 END | 57.513 |
| HIERARCH ESO ISS PBL23 START | 46.641 |
| HIERARCH ESO ISS PBL23 END | 46.639 |
| HIERARCH ESO ISS PBLA23 START | 37.0 |
| HIERARCH ESO ISS PBLA23 END | 37.3 |
| HIERARCH ESO ISS PBL24 START | 89.099 |
| HIERARCH ESO ISS PBL24 END | 89.161 |
| HIERARCH ESO ISS PBLA24 START | 78.045 |
| HIERARCH ESO ISS PBLA24 END | 78.338 |
| HIERARCH ESO ISS PBL34 START | 61.978 |
| HIERARCH ESO ISS PBL34 END | 62.041 |
| HIERARCH ESO ISS PBLA34 START | 107.63 |
| HIERARCH ESO ISS PBLA34 END | 107.896 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006298 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008354 |
| HIERARCH ESO ISS AMBI TEMP | 16.2 |
| HIERARCH ESO ISS AMBI FWHM START | 0.65 |
| HIERARCH ESO ISS AMBI FWHM END | 0.6 |
| HIERARCH ESO FT ROBJ NAME | P1954_A |
| HIERARCH ESO FT ROBJ ALPHA | 183042.447 |
| HIERARCH ESO FT ROBJ DELTA | -293623.840 |