| Prediction Version | Date of Prediction (y m d) |
Date and Time (y m d h:s) |
Minimum Separation (arcsec) |
PC570 Right Ascension (J2000) (h m s) or offset in (arcsec) |
PC570 (d m s) or offset in (arcsec) |
Pluto Right Ascension Offset (arcsec) |
Pluto Declination Offset (arcsec) |
Position Angle (deg) |
Data Used | Notes |
| PC571-AST-1.0 | 2007 10 04 |
2008 6 24 10:38:13 UT |
0.028± 0.022 | 17 58 22.3687 Offset: +0.2610± 0.0142 |
–17 02 49.150 Offset: –0.050± 0.014 |
Offset: –0.0559± 0.014 |
Offset: +0.103± 0.017 |
+23.7 | From 185 strip scans and 89 USNO 61inch frames | A, B (see below) |
| PC571-AST-2.0 | 2008 04 04 |
2008 6 24 10:38:15 UT |
0.017± 0.020 | 17 58 22.3856 Offset: +0.2637± 0.0117 |
–17 02 49.202 Offset: –0.048± 0.011 |
Offset: –0.0509± 0.014 |
Offset: +0.096± 0.017 |
+23.7 | From 185 strip scans and 89 USNO 61inch frames | A, B (see below) |
NOTES
A) The ephemeris used in this prediction is that generated for Pluto with JPL's Horizon's Ephemeris service (corrected for Light Travel time). Ephemeris Files used included PLU013.
B) Results for P571 are tabulated as offsets from the position given by UCAC2 catalog. Results for Pluto (if any) are tabulated as offsets from the unmodified JPL Horizon's ephemeris. Strip scan reduction includes simultaneous least-squares point spread fitting to Pluto and Charon as well as PC570, and uses the UCAC2 catalog for astrometric calibration.
Please direct all inquiries to Planetary Astronomy Lab (planetary-astronomy@mit.edu)
Last updated by Carlos A Zuluaga(czuluaga@mit.edu) 2008 04 04