|
5639 1989 PE (2011)
|
|
MPC Designation: |
1989 PE |
| Lightcurves |
Period (h): |
6.215 ± 0.002 |
|
Amplitude (mag): |
0.09 ± 0.01 |
|
Equipment: |
Filter: C
MagBand: R
Telescope: 0.35m f/9.1 SCT
Camera: FLI 1001E
Exposure: 240 |
|
Obs. Details |
Date E Mag Phase PABL PABB
2011-03-15 07:00 16.48 12.8 172.2 17.6
2011-03-16 07:00 16.50 13.1 172.2 17.8
2011-03-23 07:00 16.62 15.6 172.2 19.4
2011-03-24 07:00 16.64 16.0 172.2 19.6
2011-03-26 07:00 16.69 16.9 172.3 20.1
|
|
Data Points: |
187 |
|
|
|
|
Discovered: |
1989-08-09 Palomar J. Alu, E. F. Helin |
|
Family/Group: |
Hungaria |
|
Taxonomic Class: |
ES (Assumed) |
|
Published: |
MPB 38, pending |
|
|
|
|
NOTES: |
Unless otherwise stated, the "Reduced Magnitudes" in the plots are
Cousins R, based on 2MASS to BVRI conversions (Warner, MPB 34, 113-119)A period of 3.107 h cannot be formally excluded.
These results are in contradiction to those obtained after a re-examination of the data from 2009 that indicate a period near 23.3 h. The significant disparity and the fact that the data set from one year cannot be fit to the results from the other are the reason for the U = 1 rating. |
|
Contents © 2011 Brian D. Warner / Palmer Divide Observatory |
