Non-sidereal tracking with Subaru Telescope
Subaru Telescope is able to perform non-sidereal tracking of Solar System objects. Additional preparation is required, however.
Observers should prepare a file like the following, and send it to either their support astronomer or Tomonori Usuda <usuda at subaru.naoj.org>.
Please refer the telescope operators' manual PDF file (230kB) how to make the file by using a software in the Subaru computer system at the summit. You need an user account for the system.
#1 Ceres on July 26 HST +00.0000 +00.0000 ON% +0.000 UTC Geocentric Equatorial Mean Polar Geocentric ABS TSC 7 20010727000000.000 185406.057 -303521.41 1.953782861 2000.0000 20010727003000.000 185405.055 -303524.50 1.953904593 2000.0000 20010727010000.000 185404.053 -303527.59 1.954026432 2000.0000 20010727013000.000 185403.051 -303530.67 1.954148379 2000.0000 20010727020000.000 185402.050 -303533.75 1.954270432 2000.0000 20010727023000.000 185401.049 -303536.82 1.954392592 2000.0000 20010727030000.000 185400.049 -303539.90 1.954514860 2000.0000
An explanation of the various terms is given below. It is strongly recommended that you use the underlined parameters.
| Line # | Options | Description |
|---|---|---|
| 1 | Comment for the file (starting with #) | |
| 2 | (+/-)ss.ssss | RA proper motion (arcsec/yr) |
| (+/-)ss.ssss | Dec proper motion (arcsec/yr) | |
| ON%/OFF | E-term | |
| (+/-)0.sss | Annual parallax (arcsec) | |
| 3 | UTC/TDT | |
| Geocentric/Heliocentric/Barycentric | ||
| Equatorial/Ecliptic | ||
| Mean/Apparent | ||
| XYZ/Polar | ||
| Geocentric/Heliocentric | ||
| 4 | ABS/REL | |
| 5 | +/-/TSC | Flag for Az drive direction |
| 6 | Number of lines following this one | |
| 7+ (max 6000) |
YYYYMMDDhhmmss.sss | Date and time |
| hhmmss.sss | Right ascension (J2000.0) | |
| (+/-)ddmmss.ss | Declination (J2000.0) | |
| rrr.rrrrrrrrr | Geocentric distance (AU) | |
| yyyy.yyyy | Equinox |
