Exposure
- ID
- GRAVI.2023-07-07T00:31:20.496_2
- Header ID
- GRAVI.2023-07-07T00:31:20.496
- Date updated
- 2025-03-26 15:25:23 UTC+0000
- Release date
- 2024-07-07 00:40:32 UTC+0000
- UTC Start
- 2023-07-07 00:31:20.496
- UTC End
- 2023-07-07 00:33:20.496
- MJD Start
- 60132.021765
- MJD End
- 60132.023153888884
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0039605000000000005
- Ambient temperature (°C)
- 10.66
- Seeing (arcsec)
- 0.625
Observation
- ID
- 55604
- 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
- 41171
- Name
- KMT-2023-BLG-0025
- RA
- 262.9275416666666
- DEC
- -30.771368888888887
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 | 56.4120 | 56.4160 | 4.8000 | 5.2000 |
| U1-U3 | 101.4650 | 101.4880 | 10.0000 | 10.4000 |
| U1-U4 | 119.6330 | 119.9100 | 34.4230 | 34.9390 |
| U2-U3 | 45.5610 | 45.5880 | 16.3000 | 16.8000 |
| U2-U4 | 75.8800 | 76.2520 | 55.9630 | 56.4760 |
| U3-U4 | 50.0790 | 50.4320 | 91.4340 | 91.7480 |
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 | 60132.021765 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | KMT-2023-BLG-0025 |
| HIERARCH ESO INS SOBJ NAME | Gaia1731-3046 |
| RA | 262.929849 |
| DEC | -30.77145 |
| 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 | 150.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 120 |
| HIERARCH ESO ISS PBL12 START | 56.412 |
| HIERARCH ESO ISS PBL12 END | 56.416 |
| HIERARCH ESO ISS PBLA12 START | 4.8 |
| HIERARCH ESO ISS PBLA12 END | 5.2 |
| HIERARCH ESO ISS PBL13 START | 101.465 |
| HIERARCH ESO ISS PBL13 END | 101.488 |
| HIERARCH ESO ISS PBLA13 START | 10.0 |
| HIERARCH ESO ISS PBLA13 END | 10.4 |
| HIERARCH ESO ISS PBL14 START | 119.633 |
| HIERARCH ESO ISS PBL14 END | 119.91 |
| HIERARCH ESO ISS PBLA14 START | 34.423 |
| HIERARCH ESO ISS PBLA14 END | 34.939 |
| HIERARCH ESO ISS PBL23 START | 45.561 |
| HIERARCH ESO ISS PBL23 END | 45.588 |
| HIERARCH ESO ISS PBLA23 START | 16.3 |
| HIERARCH ESO ISS PBLA23 END | 16.8 |
| HIERARCH ESO ISS PBL24 START | 75.88 |
| HIERARCH ESO ISS PBL24 END | 76.252 |
| HIERARCH ESO ISS PBLA24 START | 55.963 |
| HIERARCH ESO ISS PBLA24 END | 56.476 |
| HIERARCH ESO ISS PBL34 START | 50.079 |
| HIERARCH ESO ISS PBL34 END | 50.432 |
| HIERARCH ESO ISS PBLA34 START | 91.434 |
| HIERARCH ESO ISS PBLA34 END | 91.748 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004229 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003692 |
| HIERARCH ESO ISS AMBI TEMP | 10.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | KMT-2023-BLG-0025 |
| HIERARCH ESO FT ROBJ ALPHA | 173142.610 |
| HIERARCH ESO FT ROBJ DELTA | -304616.928 |