Exposure
- ID
- GRAVI.2025-08-26T01:49:36.567_1
- Header ID
- GRAVI.2025-08-26T01:49:36.567
- Date updated
- 2025-08-26 02:00:56 UTC+0000
- Release date
- 2025-08-26 01:49:36 UTC+0000
- UTC Start
- 2025-08-26 01:49:36.567
- UTC End
- 2025-08-26 01:53:36.567
- MJD Start
- 60913.07611767
- MJD End
- 60913.07889544778
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0036165
- Ambient temperature (°C)
- 12.69
- Seeing (arcsec)
- 1.0950000000000002
Observation
- ID
- 70074
- Category
- calibrator
- Program ID
- 115.282E.002
- Program Title
- CIRCUMSTELLAR ENVELOPES OF NEARBY CEPHEIDS WITH GRAVITY TO REFINE THE PERIOD-LUMINOSITY RELATION IN THE JWST ERA
- Program Type
- Normal
- PI / COI
- HOCDÉ / NARDETTO / GALLENNE / KERVELLA / PIETRZYNSKI / GIEREN / MÉRAND / BRAS / BAILLEUL / LEFTLEY / AFANASIEV
Target
- ID
- 51989
- Name
- HD170887
- RA
- 278.118737
- DEC
- -19.45211
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B5 | 47.9300 | 47.8720 | 157.2000 | 157.8000 |
| A0-J2 | 126.1560 | 125.6500 | 97.3000 | 97.7000 |
| A0-J6 | 169.6540 | 169.6140 | 30.8140 | 31.1460 |
| B5-J2 | 110.2500 | 109.9000 | 75.2000 | 75.5000 |
| B5-J6 | 201.8310 | 201.8560 | 19.7970 | 20.1710 |
| J2-J6 | 166.1870 | 166.0890 | 346.6990 | 347.1990 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.282E.002 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,SINGLE |
| MJD-OBS | 60913.07611767 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 170887 |
| HIERARCH ESO INS SOBJ NAME | HD170887 |
| RA | 278.118737 |
| DEC | -19.45211 |
| HIERARCH ESO INS SPEC RES | HIGH |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | B5 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | J6 |
| EXPTIME | 256.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 47.93 |
| HIERARCH ESO ISS PBL12 END | 47.872 |
| HIERARCH ESO ISS PBLA12 START | 157.2 |
| HIERARCH ESO ISS PBLA12 END | 157.8 |
| HIERARCH ESO ISS PBL13 START | 126.156 |
| HIERARCH ESO ISS PBL13 END | 125.65 |
| HIERARCH ESO ISS PBLA13 START | 97.3 |
| HIERARCH ESO ISS PBLA13 END | 97.7 |
| HIERARCH ESO ISS PBL14 START | 169.654 |
| HIERARCH ESO ISS PBL14 END | 169.614 |
| HIERARCH ESO ISS PBLA14 START | 30.814 |
| HIERARCH ESO ISS PBLA14 END | 31.146 |
| HIERARCH ESO ISS PBL23 START | 110.25 |
| HIERARCH ESO ISS PBL23 END | 109.9 |
| HIERARCH ESO ISS PBLA23 START | 75.2 |
| HIERARCH ESO ISS PBLA23 END | 75.5 |
| HIERARCH ESO ISS PBL24 START | 201.831 |
| HIERARCH ESO ISS PBL24 END | 201.856 |
| HIERARCH ESO ISS PBLA24 START | 19.797 |
| HIERARCH ESO ISS PBLA24 END | 20.171 |
| HIERARCH ESO ISS PBL34 START | 166.187 |
| HIERARCH ESO ISS PBL34 END | 166.089 |
| HIERARCH ESO ISS PBLA34 START | 346.699 |
| HIERARCH ESO ISS PBLA34 END | 347.199 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00333 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003903 |
| HIERARCH ESO ISS AMBI TEMP | 12.69 |
| HIERARCH ESO ISS AMBI FWHM START | 1.09 |
| HIERARCH ESO ISS AMBI FWHM END | 1.1 |