Exposure
- ID
- GRAVI.2023-07-31T01:32:40.583_2
- Header ID
- GRAVI.2023-07-31T01:32:40.583
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-31 01:40:21 UTC+0000
- UTC Start
- 2023-07-31 01:32:40.583
- UTC End
- 2023-07-31 01:34:40.583
- MJD Start
- 60156.0643586
- MJD End
- 60156.06574748889
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0061495000000000005
- Ambient temperature (°C)
- 18.06
- Seeing (arcsec)
- 0.67
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 | 56.0850 | 56.0590 | 24.9000 | 25.2000 |
| U1-U3 | 101.7410 | 101.6880 | 31.3000 | 31.6000 |
| U1-U4 | 130.0870 | 130.0430 | 59.1110 | 59.4220 |
| U2-U3 | 46.4150 | 46.3910 | 39.0000 | 39.2000 |
| U2-U4 | 89.4130 | 89.4240 | 79.7370 | 80.0600 |
| U3-U4 | 62.1580 | 62.2050 | 108.9260 | 109.2330 |
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 | 60156.0643586 |
| 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 | 56.085 |
| HIERARCH ESO ISS PBL12 END | 56.059 |
| HIERARCH ESO ISS PBLA12 START | 24.9 |
| HIERARCH ESO ISS PBLA12 END | 25.2 |
| HIERARCH ESO ISS PBL13 START | 101.741 |
| HIERARCH ESO ISS PBL13 END | 101.688 |
| HIERARCH ESO ISS PBLA13 START | 31.3 |
| HIERARCH ESO ISS PBLA13 END | 31.6 |
| HIERARCH ESO ISS PBL14 START | 130.087 |
| HIERARCH ESO ISS PBL14 END | 130.043 |
| HIERARCH ESO ISS PBLA14 START | 59.111 |
| HIERARCH ESO ISS PBLA14 END | 59.422 |
| HIERARCH ESO ISS PBL23 START | 46.415 |
| HIERARCH ESO ISS PBL23 END | 46.391 |
| HIERARCH ESO ISS PBLA23 START | 39.0 |
| HIERARCH ESO ISS PBLA23 END | 39.2 |
| HIERARCH ESO ISS PBL24 START | 89.413 |
| HIERARCH ESO ISS PBL24 END | 89.424 |
| HIERARCH ESO ISS PBLA24 START | 79.737 |
| HIERARCH ESO ISS PBLA24 END | 80.06 |
| HIERARCH ESO ISS PBL34 START | 62.158 |
| HIERARCH ESO ISS PBL34 END | 62.205 |
| HIERARCH ESO ISS PBLA34 START | 108.926 |
| HIERARCH ESO ISS PBLA34 END | 109.233 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005538 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006761 |
| HIERARCH ESO ISS AMBI TEMP | 18.06 |
| HIERARCH ESO ISS AMBI FWHM START | 0.66 |
| 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 |