Exposure
- ID
- GRAVI.2023-07-31T01:29:46.576_2
- Header ID
- GRAVI.2023-07-31T01:29:46.576
- 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 01:29:46.576
- UTC End
- 2023-07-31 01:31:46.576
- MJD Start
- 60156.06234463
- MJD End
- 60156.06373351889
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0052910000000000006
- Ambient temperature (°C)
- 18.06
- Seeing (arcsec)
- 0.7250000000000001
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 | 56.1160 | 56.0910 | 24.6000 | 24.9000 |
| U1-U3 | 101.8040 | 101.7540 | 30.9000 | 31.2000 |
| U1-U4 | 130.1330 | 130.0980 | 58.7160 | 59.0290 |
| U2-U3 | 46.4440 | 46.4210 | 38.6000 | 38.9000 |
| U2-U4 | 89.3920 | 89.4100 | 79.3260 | 79.6510 |
| U3-U4 | 62.0930 | 62.1450 | 108.5390 | 108.8450 |
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 | 60156.06234463 |
| 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 | 56.116 |
| HIERARCH ESO ISS PBL12 END | 56.091 |
| HIERARCH ESO ISS PBLA12 START | 24.6 |
| HIERARCH ESO ISS PBLA12 END | 24.9 |
| HIERARCH ESO ISS PBL13 START | 101.804 |
| HIERARCH ESO ISS PBL13 END | 101.754 |
| HIERARCH ESO ISS PBLA13 START | 30.9 |
| HIERARCH ESO ISS PBLA13 END | 31.2 |
| HIERARCH ESO ISS PBL14 START | 130.133 |
| HIERARCH ESO ISS PBL14 END | 130.098 |
| HIERARCH ESO ISS PBLA14 START | 58.716 |
| HIERARCH ESO ISS PBLA14 END | 59.029 |
| HIERARCH ESO ISS PBL23 START | 46.444 |
| HIERARCH ESO ISS PBL23 END | 46.421 |
| HIERARCH ESO ISS PBLA23 START | 38.6 |
| HIERARCH ESO ISS PBLA23 END | 38.9 |
| HIERARCH ESO ISS PBL24 START | 89.392 |
| HIERARCH ESO ISS PBL24 END | 89.41 |
| HIERARCH ESO ISS PBLA24 START | 79.326 |
| HIERARCH ESO ISS PBLA24 END | 79.651 |
| HIERARCH ESO ISS PBL34 START | 62.093 |
| HIERARCH ESO ISS PBL34 END | 62.145 |
| HIERARCH ESO ISS PBLA34 START | 108.539 |
| HIERARCH ESO ISS PBLA34 END | 108.845 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005093 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005489 |
| HIERARCH ESO ISS AMBI TEMP | 18.06 |
| HIERARCH ESO ISS AMBI FWHM START | 0.77 |
| HIERARCH ESO ISS AMBI FWHM END | 0.68 |
| HIERARCH ESO FT ROBJ NAME | 2MASS_17352281-34063 |
| HIERARCH ESO FT ROBJ ALPHA | 173522.819 |
| HIERARCH ESO FT ROBJ DELTA | -340630.605 |