Exposure
- ID
- GRAVI.2025-04-09T09:22:11.172_1
- Header ID
- GRAVI.2025-04-09T09:22:11.172
- Date updated
- 2025-04-09 09:35:40 UTC+0000
- Release date
- 2025-04-09 09:22:11 UTC+0000
- UTC Start
- 2025-04-09 09:22:11.172
- UTC End
- 2025-04-09 09:24:51.172
- MJD Start
- 60774.39040708
- MJD End
- 60774.39225893185
- Exposure time (s)
- 160.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004101
- Ambient temperature (°C)
- 13.98
- Seeing (arcsec)
- 1.06
Observation
- ID
- 66158
- Category
- calibrator
- Program ID
- 115.28E1.001
- Program Title
- A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
- Program Type
- Normal
- PI / COI
- DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
- ID
- 49253
- Name
- HD164997
- RA
- 271.310257
- DEC
- -32.26052
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 56.2980 | 56.2730 | 24.6000 | 24.9000 |
| U1-U3 | 102.0760 | 102.0260 | 30.9000 | 31.2000 |
| U1-U4 | 130.1870 | 130.1590 | 58.7170 | 59.1020 |
| U2-U3 | 46.5360 | 46.5130 | 38.5000 | 38.9000 |
| U2-U4 | 89.3780 | 89.4050 | 79.4290 | 79.8240 |
| U3-U4 | 62.1690 | 62.2290 | 108.7660 | 109.1400 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.28E1.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,SINGLE |
| MJD-OBS | 60774.39040708 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 164997 |
| HIERARCH ESO INS SOBJ NAME | HD164997 |
| RA | 271.310257 |
| DEC | -32.26052 |
| HIERARCH ESO INS SPEC RES | HIGH |
| 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 | 178.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 16 |
| HIERARCH ESO ISS PBL12 START | 56.298 |
| HIERARCH ESO ISS PBL12 END | 56.273 |
| HIERARCH ESO ISS PBLA12 START | 24.6 |
| HIERARCH ESO ISS PBLA12 END | 24.9 |
| HIERARCH ESO ISS PBL13 START | 102.076 |
| HIERARCH ESO ISS PBL13 END | 102.026 |
| HIERARCH ESO ISS PBLA13 START | 30.9 |
| HIERARCH ESO ISS PBLA13 END | 31.2 |
| HIERARCH ESO ISS PBL14 START | 130.187 |
| HIERARCH ESO ISS PBL14 END | 130.159 |
| HIERARCH ESO ISS PBLA14 START | 58.717 |
| HIERARCH ESO ISS PBLA14 END | 59.102 |
| HIERARCH ESO ISS PBL23 START | 46.536 |
| HIERARCH ESO ISS PBL23 END | 46.513 |
| HIERARCH ESO ISS PBLA23 START | 38.5 |
| HIERARCH ESO ISS PBLA23 END | 38.9 |
| HIERARCH ESO ISS PBL24 START | 89.378 |
| HIERARCH ESO ISS PBL24 END | 89.405 |
| HIERARCH ESO ISS PBLA24 START | 79.429 |
| HIERARCH ESO ISS PBLA24 END | 79.824 |
| HIERARCH ESO ISS PBL34 START | 62.169 |
| HIERARCH ESO ISS PBL34 END | 62.229 |
| HIERARCH ESO ISS PBLA34 START | 108.766 |
| HIERARCH ESO ISS PBLA34 END | 109.14 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004101 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004101 |
| HIERARCH ESO ISS AMBI TEMP | 13.98 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 1.12 |