Exposure
- ID
- GRAVI.2024-07-25T02:51:54.909_2
- Header ID
- GRAVI.2024-07-25T02:51:54.909
- Date updated
- 2024-07-25 03:00:38 UTC+0000
- Release date
- 2025-07-25 03:00:37 UTC+0000
- UTC Start
- 2024-07-25 02:51:54.909
- UTC End
- 2024-07-25 02:53:54.909
- MJD Start
- 60516.11938552
- MJD End
- 60516.1207744089
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002997
- Ambient temperature (°C)
- 13.6
- Seeing (arcsec)
- 0.8
Observation
- ID
- 60143
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 43558
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816666667
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 | 56.0540 | 56.0220 | 29.8000 | 30.0000 |
| U1-U3 | 101.3910 | 101.3180 | 36.2000 | 36.4000 |
| U1-U4 | 128.5320 | 128.3700 | 64.5270 | 64.7590 |
| U2-U3 | 46.1070 | 46.0650 | 43.9000 | 44.2000 |
| U2-U4 | 88.4350 | 88.3210 | 85.6970 | 85.9590 |
| U3-U4 | 62.1570 | 62.1080 | 115.3020 | 115.5910 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60516.11938552 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | IRS16SW |
| RA | 266.417168 |
| DEC | -29.00737 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| 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 | 135.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 56.054 |
| HIERARCH ESO ISS PBL12 END | 56.022 |
| HIERARCH ESO ISS PBLA12 START | 29.8 |
| HIERARCH ESO ISS PBLA12 END | 30.0 |
| HIERARCH ESO ISS PBL13 START | 101.391 |
| HIERARCH ESO ISS PBL13 END | 101.318 |
| HIERARCH ESO ISS PBLA13 START | 36.2 |
| HIERARCH ESO ISS PBLA13 END | 36.4 |
| HIERARCH ESO ISS PBL14 START | 128.532 |
| HIERARCH ESO ISS PBL14 END | 128.37 |
| HIERARCH ESO ISS PBLA14 START | 64.527 |
| HIERARCH ESO ISS PBLA14 END | 64.759 |
| HIERARCH ESO ISS PBL23 START | 46.107 |
| HIERARCH ESO ISS PBL23 END | 46.065 |
| HIERARCH ESO ISS PBLA23 START | 43.9 |
| HIERARCH ESO ISS PBLA23 END | 44.2 |
| HIERARCH ESO ISS PBL24 START | 88.435 |
| HIERARCH ESO ISS PBL24 END | 88.321 |
| HIERARCH ESO ISS PBLA24 START | 85.697 |
| HIERARCH ESO ISS PBLA24 END | 85.959 |
| HIERARCH ESO ISS PBL34 START | 62.157 |
| HIERARCH ESO ISS PBL34 END | 62.108 |
| HIERARCH ESO ISS PBLA34 START | 115.302 |
| HIERARCH ESO ISS PBLA34 END | 115.591 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003322 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002672 |
| HIERARCH ESO ISS AMBI TEMP | 13.6 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.85 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.100 |
| HIERARCH ESO FT ROBJ DELTA | -290027.654 |