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The Minor Planet Observer
and
Palmer Divide Observatory

9387 Tweedledee (2006)

MPC Designation: 1994 CA
Lightcurves Period (h): 3.543 ± 0.002
Amplitude (mag): 0.10 ± 0.01
Equipment:

 

Filter: C
MagBand: R
Telescope: 0.5m f/8.1 R/C
Camera: FLI 1001E
Exposure: 240

 

Obs. Details

Date              E Mag   Phase  PABL   PABB
2006-09-16 06:00  15.63   13.9    2.4   15.8
2006-09-17 06:00  15.62   13.7    2.5   16.0
2006-09-18 06:00  15.61   13.6    2.6   16.3
2006-09-19 06:00  15.60   13.5    2.6   16.5

Data Points: 195
Discovered: 1994-02-02  Fujieda  H. Shiozawa, T. Urata
Family/Group: Hungaria
Taxonomic Class: ES (Assumed)
Published: MPB 34, 8-10; 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)

Followup in 2013. The original period of 7.08 h reported in 2006 just wouldn't work with the 2013 data. However, the 2006 data did result in a solution of 3.543 h and was more convincing, especially in light of the 2013 results.

 

Contents © 2013 Brian D. Warner / Palmer Divide Observatory

 

 

 

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