Exposure
- ID
- GRAVI.2022-05-20T10:02:30.388_2
- Header ID
- GRAVI.2022-05-20T10:02:30.388
- Date updated
- 2022-05-20 10:05:55 UTC+0000
- Release date
- 2023-05-20 10:05:55 UTC+0000
- UTC Start
- 2022-05-20 10:02:30.388
- UTC End
- 2022-05-20 10:02:50.388
- MJD Start
- 59719.41840727
- MJD End
- 59719.4186387515
- Exposure time (s)
- 20.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0083145
- Ambient temperature (°C)
- 12.0
- Seeing (arcsec)
- 0.41
Observation
- ID
- 50947
- Category
- science
- Program ID
- 109.22ZA.002
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ PERRIN/ PAUMARD/ HORROBIN/ VINCENT/ HEIßEL/ DRESCHER/ BOURDAROT/ STRAUB/ CAO
Target
- ID
- 37996
- Name
- IRS16C
- RA
- 266.4171125
- DEC
- -29.0076471944444
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 49.2250 | 49.1910 | 40.6000 | 40.6000 |
| U1-U3 | 85.7500 | 85.6720 | 46.7000 | 46.7000 |
| U1-U4 | 92.9070 | 92.7350 | 79.9340 | 79.9760 |
| U2-U3 | 37.1670 | 37.1220 | 54.7000 | 54.7000 |
| U2-U4 | 63.0960 | 62.9810 | 109.5720 | 109.6700 |
| U3-U4 | 51.6120 | 51.5740 | 145.6500 | 145.7730 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.22ZA.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59719.41840727 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416858 |
| DEC | -29.00723 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | SPLIT |
| 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 | 34.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 2 |
| HIERARCH ESO ISS PBL12 START | 49.225 |
| HIERARCH ESO ISS PBL12 END | 49.191 |
| HIERARCH ESO ISS PBLA12 START | 40.6 |
| HIERARCH ESO ISS PBLA12 END | 40.6 |
| HIERARCH ESO ISS PBL13 START | 85.75 |
| HIERARCH ESO ISS PBL13 END | 85.672 |
| HIERARCH ESO ISS PBLA13 START | 46.7 |
| HIERARCH ESO ISS PBLA13 END | 46.7 |
| HIERARCH ESO ISS PBL14 START | 92.907 |
| HIERARCH ESO ISS PBL14 END | 92.735 |
| HIERARCH ESO ISS PBLA14 START | 79.934 |
| HIERARCH ESO ISS PBLA14 END | 79.976 |
| HIERARCH ESO ISS PBL23 START | 37.167 |
| HIERARCH ESO ISS PBL23 END | 37.122 |
| HIERARCH ESO ISS PBLA23 START | 54.7 |
| HIERARCH ESO ISS PBLA23 END | 54.7 |
| HIERARCH ESO ISS PBL24 START | 63.096 |
| HIERARCH ESO ISS PBL24 END | 62.981 |
| HIERARCH ESO ISS PBLA24 START | 109.572 |
| HIERARCH ESO ISS PBLA24 END | 109.67 |
| HIERARCH ESO ISS PBL34 START | 51.612 |
| HIERARCH ESO ISS PBL34 END | 51.574 |
| HIERARCH ESO ISS PBLA34 START | 145.65 |
| HIERARCH ESO ISS PBLA34 END | 145.773 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007631 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008998 |
| HIERARCH ESO ISS AMBI TEMP | 12.0 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| HIERARCH ESO ISS AMBI FWHM END | 0.42 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |