Exposure
- ID
- GRAVI.2023-07-29T02:46:07.123_2
- Header ID
- GRAVI.2023-07-29T02:46:07.123
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-29 03:00:41 UTC+0000
- UTC Start
- 2023-07-29 02:46:07.123
- UTC End
- 2023-07-29 02:52:47.123
- MJD Start
- 60154.11536022
- MJD End
- 60154.11998984963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0066745
- Ambient temperature (°C)
- 16.34
- Seeing (arcsec)
- 0.835
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 | 54.8620 | 54.6770 | 31.3000 | 32.0000 |
| U1-U3 | 99.2200 | 98.8150 | 37.9000 | 38.6000 |
| U1-U4 | 126.5430 | 125.8020 | 66.7750 | 67.6470 |
| U2-U3 | 45.1490 | 44.9300 | 45.8000 | 46.6000 |
| U2-U4 | 87.8120 | 87.3610 | 88.0150 | 89.0200 |
| U3-U4 | 62.2520 | 62.1220 | 117.1680 | 118.2450 |
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 | 60154.11536022 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | KB230496 |
| HIERARCH ESO INS SOBJ NAME | KB230496 |
| RA | 265.767476 |
| DEC | -35.25672 |
| 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 | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 54.862 |
| HIERARCH ESO ISS PBL12 END | 54.677 |
| HIERARCH ESO ISS PBLA12 START | 31.3 |
| HIERARCH ESO ISS PBLA12 END | 32.0 |
| HIERARCH ESO ISS PBL13 START | 99.22 |
| HIERARCH ESO ISS PBL13 END | 98.815 |
| HIERARCH ESO ISS PBLA13 START | 37.9 |
| HIERARCH ESO ISS PBLA13 END | 38.6 |
| HIERARCH ESO ISS PBL14 START | 126.543 |
| HIERARCH ESO ISS PBL14 END | 125.802 |
| HIERARCH ESO ISS PBLA14 START | 66.775 |
| HIERARCH ESO ISS PBLA14 END | 67.647 |
| HIERARCH ESO ISS PBL23 START | 45.149 |
| HIERARCH ESO ISS PBL23 END | 44.93 |
| HIERARCH ESO ISS PBLA23 START | 45.8 |
| HIERARCH ESO ISS PBLA23 END | 46.6 |
| HIERARCH ESO ISS PBL24 START | 87.812 |
| HIERARCH ESO ISS PBL24 END | 87.361 |
| HIERARCH ESO ISS PBLA24 START | 88.015 |
| HIERARCH ESO ISS PBLA24 END | 89.02 |
| HIERARCH ESO ISS PBL34 START | 62.252 |
| HIERARCH ESO ISS PBL34 END | 62.122 |
| HIERARCH ESO ISS PBLA34 START | 117.168 |
| HIERARCH ESO ISS PBLA34 END | 118.245 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007438 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005911 |
| HIERARCH ESO ISS AMBI TEMP | 16.34 |
| HIERARCH ESO ISS AMBI FWHM START | 0.76 |
| HIERARCH ESO ISS AMBI FWHM END | 0.91 |
| HIERARCH ESO FT ROBJ NAME | 2MASS17430426-351519 |
| HIERARCH ESO FT ROBJ ALPHA | 174304.264 |
| HIERARCH ESO FT ROBJ DELTA | -351519.493 |