Exposure
- ID
- GRAVI.2022-05-20T07:38:18.025_2
- Header ID
- GRAVI.2022-05-20T07:38:18.025
- Date updated
- 2022-05-20 07:51:04 UTC+0000
- Release date
- 2023-05-20 07:51:03 UTC+0000
- UTC Start
- 2022-05-20 07:38:18.025
- UTC End
- 2022-05-20 07:43:38.025
- MJD Start
- 59719.31826418
- MJD End
- 59719.3219678837
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0076785
- Ambient temperature (°C)
- 12.45
- Seeing (arcsec)
- 0.375
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 | 55.6160 | 55.4930 | 32.1000 | 32.6000 |
| U1-U3 | 100.3760 | 100.0900 | 38.5000 | 38.9000 |
| U1-U4 | 126.2270 | 125.5620 | 67.0980 | 67.6620 |
| U2-U3 | 45.5250 | 45.3600 | 46.2000 | 46.7000 |
| U2-U4 | 86.7640 | 86.2740 | 88.6800 | 89.3650 |
| U3-U4 | 61.3990 | 61.1690 | 118.6970 | 119.5070 |
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 | 59719.31826418 |
| 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 | 342.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 55.616 |
| HIERARCH ESO ISS PBL12 END | 55.493 |
| HIERARCH ESO ISS PBLA12 START | 32.1 |
| HIERARCH ESO ISS PBLA12 END | 32.6 |
| HIERARCH ESO ISS PBL13 START | 100.376 |
| HIERARCH ESO ISS PBL13 END | 100.09 |
| HIERARCH ESO ISS PBLA13 START | 38.5 |
| HIERARCH ESO ISS PBLA13 END | 38.9 |
| HIERARCH ESO ISS PBL14 START | 126.227 |
| HIERARCH ESO ISS PBL14 END | 125.562 |
| HIERARCH ESO ISS PBLA14 START | 67.098 |
| HIERARCH ESO ISS PBLA14 END | 67.662 |
| HIERARCH ESO ISS PBL23 START | 45.525 |
| HIERARCH ESO ISS PBL23 END | 45.36 |
| HIERARCH ESO ISS PBLA23 START | 46.2 |
| HIERARCH ESO ISS PBLA23 END | 46.7 |
| HIERARCH ESO ISS PBL24 START | 86.764 |
| HIERARCH ESO ISS PBL24 END | 86.274 |
| HIERARCH ESO ISS PBLA24 START | 88.68 |
| HIERARCH ESO ISS PBLA24 END | 89.365 |
| HIERARCH ESO ISS PBL34 START | 61.399 |
| HIERARCH ESO ISS PBL34 END | 61.169 |
| HIERARCH ESO ISS PBLA34 START | 118.697 |
| HIERARCH ESO ISS PBLA34 END | 119.507 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007501 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007856 |
| HIERARCH ESO ISS AMBI TEMP | 12.45 |
| HIERARCH ESO ISS AMBI FWHM START | 0.35 |
| HIERARCH ESO ISS AMBI FWHM END | 0.4 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |