SkyMapper Southern Sky Survey
Approximately 75% of SkyMapper's observing time will be initially dedicated to the Southern Sky Survey, a comprehensive digital survey of the entire southern sky.
Features of the Southern Sky Survey include:
- Multi-colour, multi-epoch of all 20000 sq. degrees south of equator (ugriz filters & v filter like the DDO 38 filter)
- Data supplied to the community via All-Sky Virtual Observatory
- Star and Galaxy photometry (3% absolute calibration)
- Astrometry (better than 50 mas )
- Digital images available for download, photometrically calibrated, with accurate World Coordinate Systems, both single images and combined images.
The table below summarises the expected survey depth (2.5" seeing) for a signal-to-noise ratio of 5 in AB mags:
u | v | g | r | i | z | |
1 EPOCH | 19.5 | 19.5 | 21.0 | 21.0 | 20.0 | 19.0 |
SATURATION | 10.0 | 10.5 | 13.0 | 13.0 | 11.0 | 10.5 |
EXP. TIME (s) | 100 | 100 | 100 | 100 | 100 | 100 |
FINAL DEPTH | 20.5 | 20.5 | 21.7 | 21.7 | 20.7 | 19.7 |
- Census of bright end of TNO and Centaur population, especially off the ecliptic plane
- Galactic census – metallicity, gravity, temperature, variability of many millions of stars
- Mapping the structure of the Milky Way and the Magellanic Clouds
- Searching for new dwarf galaxy companions to the Milky Way
- Discovery of up to 500 SNe over 5 years
- Phot-Z samples of z<0.5 galaxies for studies of Large Scale Structure (e.g. Int-Sachs wolf, Paczynski-Alcock)
- QSO discovery, variability, evolution
- Bright z>6 Quasars
- Digital reference for radio, X-Ray, GRB instruments
- An astrometric and photometric basis for the Virtual Observatory
- Planet transit studies
- Microlensing studies
- Supernovae
- Widefield surveys in non-survey filters
Survey progress
Main survey
Total fields | First colour sequence complete | Grey sky pairs complete | Bright sky pairs complete | Full sequence complete |
---|---|---|---|---|
4055 | 1624 (40.0 %) | 1604 (39.6 %) | 3916 (96.6 %) | 507 (12.5 %) |
Short survey
Total fields | Fields started | Fields complete |
---|---|---|
4055 | 3732 (92.0 %) | 3687 (90.9 %) |
Updated at: 10/01/2018 21:00 UTC