Exposure
- ID
- GRAVI.2024-07-25T05:04:46.246_2
- Header ID
- GRAVI.2024-07-25T05:04:46.246
- Date updated
- 2024-07-25 05:20:32 UTC+0000
- Release date
- 2025-07-25 05:20:32 UTC+0000
- UTC Start
- 2024-07-25 05:04:46.246
- UTC End
- 2024-07-25 05:10:46.246
- MJD Start
- 60516.21164636
- MJD End
- 60516.2158130267
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0030995
- Ambient temperature (°C)
- 13.48
- Seeing (arcsec)
- 0.735
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 | 51.5140 | 51.1420 | 39.3000 | 39.6000 |
| U1-U3 | 90.9250 | 90.0810 | 45.5000 | 45.7000 |
| U1-U4 | 104.4310 | 102.5350 | 76.8820 | 77.4250 |
| U2-U3 | 40.0980 | 39.6190 | 53.4000 | 53.7000 |
| U2-U4 | 70.9640 | 69.6430 | 103.1730 | 104.2170 |
| U3-U4 | 54.4650 | 53.9540 | 137.3550 | 138.7390 |
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 | 60516.21164636 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417252 |
| DEC | -29.00738 |
| 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 | 51.514 |
| HIERARCH ESO ISS PBL12 END | 51.142 |
| HIERARCH ESO ISS PBLA12 START | 39.3 |
| HIERARCH ESO ISS PBLA12 END | 39.6 |
| HIERARCH ESO ISS PBL13 START | 90.925 |
| HIERARCH ESO ISS PBL13 END | 90.081 |
| HIERARCH ESO ISS PBLA13 START | 45.5 |
| HIERARCH ESO ISS PBLA13 END | 45.7 |
| HIERARCH ESO ISS PBL14 START | 104.431 |
| HIERARCH ESO ISS PBL14 END | 102.535 |
| HIERARCH ESO ISS PBLA14 START | 76.882 |
| HIERARCH ESO ISS PBLA14 END | 77.425 |
| HIERARCH ESO ISS PBL23 START | 40.098 |
| HIERARCH ESO ISS PBL23 END | 39.619 |
| HIERARCH ESO ISS PBLA23 START | 53.4 |
| HIERARCH ESO ISS PBLA23 END | 53.7 |
| HIERARCH ESO ISS PBL24 START | 70.964 |
| HIERARCH ESO ISS PBL24 END | 69.643 |
| HIERARCH ESO ISS PBLA24 START | 103.173 |
| HIERARCH ESO ISS PBLA24 END | 104.217 |
| HIERARCH ESO ISS PBL34 START | 54.465 |
| HIERARCH ESO ISS PBL34 END | 53.954 |
| HIERARCH ESO ISS PBLA34 START | 137.355 |
| HIERARCH ESO ISS PBLA34 END | 138.739 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003199 |
| HIERARCH ESO ISS AMBI TEMP | 13.48 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |