Exposure
- ID
- GRAVI.2023-09-28T23:44:34.946_2
- Header ID
- GRAVI.2023-09-28T23:44:34.946
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-09-29 00:00:43 UTC+0000
- UTC Start
- 2023-09-28 23:44:34.946
- UTC End
- 2023-09-28 23:50:34.946
- MJD Start
- 60215.98929336
- MJD End
- 60215.993460026664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004246
- Ambient temperature (°C)
- 13.25
- Seeing (arcsec)
- 0.88
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 | 52.7170 | 52.4340 | 37.0000 | 37.5000 |
| U1-U3 | 94.4860 | 93.8600 | 43.7000 | 44.2000 |
| U1-U4 | 117.3980 | 116.1550 | 74.3020 | 75.0410 |
| U2-U3 | 42.5640 | 42.2200 | 51.9000 | 52.5000 |
| U2-U4 | 81.9370 | 81.1230 | 97.2400 | 98.2240 |
| U3-U4 | 60.1810 | 59.8760 | 127.4360 | 128.5700 |
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 | 60215.98929336 |
| 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 | 52.717 |
| HIERARCH ESO ISS PBL12 END | 52.434 |
| HIERARCH ESO ISS PBLA12 START | 37.0 |
| HIERARCH ESO ISS PBLA12 END | 37.5 |
| HIERARCH ESO ISS PBL13 START | 94.486 |
| HIERARCH ESO ISS PBL13 END | 93.86 |
| HIERARCH ESO ISS PBLA13 START | 43.7 |
| HIERARCH ESO ISS PBLA13 END | 44.2 |
| HIERARCH ESO ISS PBL14 START | 117.398 |
| HIERARCH ESO ISS PBL14 END | 116.155 |
| HIERARCH ESO ISS PBLA14 START | 74.302 |
| HIERARCH ESO ISS PBLA14 END | 75.041 |
| HIERARCH ESO ISS PBL23 START | 42.564 |
| HIERARCH ESO ISS PBL23 END | 42.22 |
| HIERARCH ESO ISS PBLA23 START | 51.9 |
| HIERARCH ESO ISS PBLA23 END | 52.5 |
| HIERARCH ESO ISS PBL24 START | 81.937 |
| HIERARCH ESO ISS PBL24 END | 81.123 |
| HIERARCH ESO ISS PBLA24 START | 97.24 |
| HIERARCH ESO ISS PBLA24 END | 98.224 |
| HIERARCH ESO ISS PBL34 START | 60.181 |
| HIERARCH ESO ISS PBL34 END | 59.876 |
| HIERARCH ESO ISS PBLA34 START | 127.436 |
| HIERARCH ESO ISS PBLA34 END | 128.57 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004541 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003951 |
| HIERARCH ESO ISS AMBI TEMP | 13.25 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.95 |
| HIERARCH ESO FT ROBJ NAME | 2MASS17430426-351519 |
| HIERARCH ESO FT ROBJ ALPHA | 174304.264 |
| HIERARCH ESO FT ROBJ DELTA | -351519.493 |