Exposure
- ID
- GRAVI.2025-04-06T01:45:59.984_2
- Header ID
- GRAVI.2025-04-06T01:45:59.984
- Date updated
- 2025-04-06 02:00:57 UTC+0000
- Release date
- 2025-04-06 01:45:59 UTC+0000
- UTC Start
- 2025-04-06 01:45:59.984
- UTC End
- 2025-04-06 01:49:59.984
- MJD Start
- 60771.07361093
- MJD End
- 60771.07638870778
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0085755
- Ambient temperature (°C)
- 15.8
- Seeing (arcsec)
- 0.575
Observation
- ID
- 66052
- Category
- calibrator
- Program ID
- 60.A-9801(U)
- Program Title
- TECHNICAL TIME
- Program Type
- Normal
- PI / COI
- OBSERVATORY
Target
- ID
- 49171
- Name
- hd90444a
- RA
- 156.72087499999998
- DEC
- 17.219415555555553
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 B2 D0 C1
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 22.4360 | 22.2840 | 133.7000 | 133.8000 |
| A0-D0 | 30.3690 | 30.5380 | 77.1000 | 76.8000 |
| A0-C1 | 22.1850 | 22.1090 | 111.3670 | 111.1320 |
| B2-D0 | 26.0140 | 26.2120 | 31.0000 | 31.4000 |
| B2-C1 | 8.6640 | 8.7300 | 30.9270 | 31.3370 |
| D0-C1 | 17.3500 | 17.4820 | 211.0080 | 211.4160 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 60.A-9801(U) |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60771.07361093 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | hd90444b |
| HIERARCH ESO INS SOBJ NAME | hd90444b |
| RA | 156.718362 |
| DEC | 17.21894 |
| 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 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 255.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 22.436 |
| HIERARCH ESO ISS PBL12 END | 22.284 |
| HIERARCH ESO ISS PBLA12 START | 133.7 |
| HIERARCH ESO ISS PBLA12 END | 133.8 |
| HIERARCH ESO ISS PBL13 START | 30.369 |
| HIERARCH ESO ISS PBL13 END | 30.538 |
| HIERARCH ESO ISS PBLA13 START | 77.1 |
| HIERARCH ESO ISS PBLA13 END | 76.8 |
| HIERARCH ESO ISS PBL14 START | 22.185 |
| HIERARCH ESO ISS PBL14 END | 22.109 |
| HIERARCH ESO ISS PBLA14 START | 111.367 |
| HIERARCH ESO ISS PBLA14 END | 111.132 |
| HIERARCH ESO ISS PBL23 START | 26.014 |
| HIERARCH ESO ISS PBL23 END | 26.212 |
| HIERARCH ESO ISS PBLA23 START | 31.0 |
| HIERARCH ESO ISS PBLA23 END | 31.4 |
| HIERARCH ESO ISS PBL24 START | 8.664 |
| HIERARCH ESO ISS PBL24 END | 8.73 |
| HIERARCH ESO ISS PBLA24 START | 30.927 |
| HIERARCH ESO ISS PBLA24 END | 31.337 |
| HIERARCH ESO ISS PBL34 START | 17.35 |
| HIERARCH ESO ISS PBL34 END | 17.482 |
| HIERARCH ESO ISS PBLA34 START | 211.008 |
| HIERARCH ESO ISS PBLA34 END | 211.416 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007395 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009756 |
| HIERARCH ESO ISS AMBI TEMP | 15.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.64 |
| HIERARCH ESO ISS AMBI FWHM END | 0.51 |
| HIERARCH ESO FT ROBJ NAME | hd90444a |
| HIERARCH ESO FT ROBJ ALPHA | 102653.010 |
| HIERARCH ESO FT ROBJ DELTA | 171309.896 |