Exposure
- ID
- GRAVI.2024-07-18T02:20:21.355_2
- Header ID
- GRAVI.2024-07-18T02:20:21.355
- Date updated
- 2024-07-18 08:20:31 UTC+0000
- Release date
- 2025-07-18 08:20:31 UTC+0000
- UTC Start
- 2024-07-18 02:20:21.355
- UTC End
- 2024-07-18 02:26:21.355
- MJD Start
- 60509.09746939
- MJD End
- 60509.1016360567
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0133855
- Ambient temperature (°C)
- 17.27
- Seeing (arcsec)
- 0.455
Observation
- ID
- 60139
- 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
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 56.5310 | 56.5100 | 23.5000 | 24.3000 |
| U1-U3 | 102.4150 | 102.3820 | 29.8000 | 30.6000 |
| U1-U4 | 130.1190 | 130.1920 | 57.7010 | 58.5080 |
| U2-U3 | 46.6410 | 46.6330 | 37.5000 | 38.3000 |
| U2-U4 | 89.1800 | 89.3160 | 78.5500 | 79.3540 |
| U3-U4 | 62.0960 | 62.2390 | 108.1130 | 108.8560 |
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 | 60509.09746939 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416896 |
| DEC | -29.00733 |
| 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 | 389.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 56.531 |
| HIERARCH ESO ISS PBL12 END | 56.51 |
| HIERARCH ESO ISS PBLA12 START | 23.5 |
| HIERARCH ESO ISS PBLA12 END | 24.3 |
| HIERARCH ESO ISS PBL13 START | 102.415 |
| HIERARCH ESO ISS PBL13 END | 102.382 |
| HIERARCH ESO ISS PBLA13 START | 29.8 |
| HIERARCH ESO ISS PBLA13 END | 30.6 |
| HIERARCH ESO ISS PBL14 START | 130.119 |
| HIERARCH ESO ISS PBL14 END | 130.192 |
| HIERARCH ESO ISS PBLA14 START | 57.701 |
| HIERARCH ESO ISS PBLA14 END | 58.508 |
| HIERARCH ESO ISS PBL23 START | 46.641 |
| HIERARCH ESO ISS PBL23 END | 46.633 |
| HIERARCH ESO ISS PBLA23 START | 37.5 |
| HIERARCH ESO ISS PBLA23 END | 38.3 |
| HIERARCH ESO ISS PBL24 START | 89.18 |
| HIERARCH ESO ISS PBL24 END | 89.316 |
| HIERARCH ESO ISS PBLA24 START | 78.55 |
| HIERARCH ESO ISS PBLA24 END | 79.354 |
| HIERARCH ESO ISS PBL34 START | 62.096 |
| HIERARCH ESO ISS PBL34 END | 62.239 |
| HIERARCH ESO ISS PBLA34 START | 108.113 |
| HIERARCH ESO ISS PBLA34 END | 108.856 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.013828 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.012943 |
| HIERARCH ESO ISS AMBI TEMP | 17.27 |
| HIERARCH ESO ISS AMBI FWHM START | 0.45 |
| HIERARCH ESO ISS AMBI FWHM END | 0.46 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |