Exposure
- ID
- GRAVI.2025-05-14T06:52:01.645_1
- Header ID
- GRAVI.2025-05-14T06:52:01.645
- Date updated
- 2025-05-14 07:00:54 UTC+0000
- Release date
- 2025-05-14 06:52:01 UTC+0000
- UTC Start
- 2025-05-14 06:52:01.645
- UTC End
- 2025-05-14 06:54:41.645
- MJD Start
- 60809.28613015
- MJD End
- 60809.28798200186
- Exposure time (s)
- 160.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006324
- Ambient temperature (°C)
- 16.32
- Seeing (arcsec)
- 0.61
Observation
- ID
- 67405
- 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
- 50138
- Name
- HD172927
- RA
- 280.737113
- DEC
- -1.96243
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 50.3970 | 50.5140 | 20.8000 | 21.2000 |
| U1-U3 | 90.9060 | 91.1900 | 28.0000 | 28.3000 |
| U1-U4 | 117.8990 | 118.5010 | 59.2030 | 59.4010 |
| U2-U3 | 41.3710 | 41.5350 | 36.6000 | 37.0000 |
| U2-U4 | 84.3910 | 84.7590 | 80.9580 | 81.0230 |
| U3-U4 | 61.9500 | 62.0430 | 108.7730 | 108.7690 |
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 | 60809.28613015 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 172927 |
| HIERARCH ESO INS SOBJ NAME | HD172927 |
| RA | 280.737113 |
| DEC | -1.96243 |
| 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 | 50.397 |
| HIERARCH ESO ISS PBL12 END | 50.514 |
| HIERARCH ESO ISS PBLA12 START | 20.8 |
| HIERARCH ESO ISS PBLA12 END | 21.2 |
| HIERARCH ESO ISS PBL13 START | 90.906 |
| HIERARCH ESO ISS PBL13 END | 91.19 |
| HIERARCH ESO ISS PBLA13 START | 28.0 |
| HIERARCH ESO ISS PBLA13 END | 28.3 |
| HIERARCH ESO ISS PBL14 START | 117.899 |
| HIERARCH ESO ISS PBL14 END | 118.501 |
| HIERARCH ESO ISS PBLA14 START | 59.203 |
| HIERARCH ESO ISS PBLA14 END | 59.401 |
| HIERARCH ESO ISS PBL23 START | 41.371 |
| HIERARCH ESO ISS PBL23 END | 41.535 |
| HIERARCH ESO ISS PBLA23 START | 36.6 |
| HIERARCH ESO ISS PBLA23 END | 37.0 |
| HIERARCH ESO ISS PBL24 START | 84.391 |
| HIERARCH ESO ISS PBL24 END | 84.759 |
| HIERARCH ESO ISS PBLA24 START | 80.958 |
| HIERARCH ESO ISS PBLA24 END | 81.023 |
| HIERARCH ESO ISS PBL34 START | 61.95 |
| HIERARCH ESO ISS PBL34 END | 62.043 |
| HIERARCH ESO ISS PBLA34 START | 108.773 |
| HIERARCH ESO ISS PBLA34 END | 108.769 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005087 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007561 |
| HIERARCH ESO ISS AMBI TEMP | 16.32 |
| HIERARCH ESO ISS AMBI FWHM START | 0.65 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |