Exposure
- ID
- GRAVI.2025-10-31T04:01:12.851_2
- Header ID
- GRAVI.2025-10-31T04:01:12.851
- Date updated
- 2025-10-31 04:15:56 UTC+0000
- Release date
- 2026-10-31 04:15:56 UTC+0000
- UTC Start
- 2025-10-31 04:01:12.851
- UTC End
- 2025-10-31 04:07:52.851
- MJD Start
- 60979.16750985
- MJD End
- 60979.172139479626
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005437
- Ambient temperature (°C)
- 13.16
- Seeing (arcsec)
- 0.6
Observation
- ID
- 71059
- Category
- science
- Program ID
- 116.28NC.004
- Program Title
- GRAVITY-GAIA DR4 EXOPLANET SURVEY IN NEARBY LOW-MASS BINARY SYSTEMS
- Program Type
- Normal
- PI / COI
- KERVELLA / GALLENNE / ARENOU / BEICHMAN / BOURDAROT / LACOUR / MENDEZ / MÉRAND / NOWAK
Target
- ID
- 52739
- Name
- HD_1237A
- RA
- 4.0528249999999995
- DEC
- -79.85117916666665
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 86.5030 | 86.6110 | 129.7000 | 131.3000 |
| A0-J2 | 129.1550 | 129.1310 | 116.4000 | 118.1000 |
| A0-K0 | 120.3120 | 120.0820 | 103.6920 | 105.4210 |
| G1-J2 | 49.1630 | 48.9940 | 92.6000 | 94.3000 |
| G1-K0 | 57.0120 | 56.6740 | 61.9980 | 63.5230 |
| J2-K0 | 29.0010 | 28.9900 | 2.4230 | 3.7070 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.28NC.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60979.16750985 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 1237A |
| HIERARCH ESO INS SOBJ NAME | HD_1237A |
| RA | 4.053746 |
| DEC | -79.85096 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | G1 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | K0 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 86.503 |
| HIERARCH ESO ISS PBL12 END | 86.611 |
| HIERARCH ESO ISS PBLA12 START | 129.7 |
| HIERARCH ESO ISS PBLA12 END | 131.3 |
| HIERARCH ESO ISS PBL13 START | 129.155 |
| HIERARCH ESO ISS PBL13 END | 129.131 |
| HIERARCH ESO ISS PBLA13 START | 116.4 |
| HIERARCH ESO ISS PBLA13 END | 118.1 |
| HIERARCH ESO ISS PBL14 START | 120.312 |
| HIERARCH ESO ISS PBL14 END | 120.082 |
| HIERARCH ESO ISS PBLA14 START | 103.692 |
| HIERARCH ESO ISS PBLA14 END | 105.421 |
| HIERARCH ESO ISS PBL23 START | 49.163 |
| HIERARCH ESO ISS PBL23 END | 48.994 |
| HIERARCH ESO ISS PBLA23 START | 92.6 |
| HIERARCH ESO ISS PBLA23 END | 94.3 |
| HIERARCH ESO ISS PBL24 START | 57.012 |
| HIERARCH ESO ISS PBL24 END | 56.674 |
| HIERARCH ESO ISS PBLA24 START | 61.998 |
| HIERARCH ESO ISS PBLA24 END | 63.523 |
| HIERARCH ESO ISS PBL34 START | 29.001 |
| HIERARCH ESO ISS PBL34 END | 28.99 |
| HIERARCH ESO ISS PBLA34 START | 2.423 |
| HIERARCH ESO ISS PBLA34 END | 3.707 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006246 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004628 |
| HIERARCH ESO ISS AMBI TEMP | 13.16 |
| HIERARCH ESO ISS AMBI FWHM START | 0.47 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | HD_1237A |
| HIERARCH ESO FT ROBJ ALPHA | 001612.678 |
| HIERARCH ESO FT ROBJ DELTA | -795104.245 |