2002 BM26
compiled by Wm. Robert Johnston
last updated 5 March 2007
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
1.83315758208029 AU
| |
orbital period P: |
2.482 y (=906.6 d)
| |
eccentricity e: |
0.444735565475537
| |
perihelion distance q: |
1.01788720820804 AU
| |
aphelion distance Q: |
2.64842796 AU
| |
inclination i: |
16.2165624052017°
| |
argument of perihelion omega: |
180.360205146822°
| |
ascending node OMEGA: |
319.73122978626°
| |
mean anomaly M: |
69.9951567724464°
| |
perihelion passage TP: |
2004-08-06.7360023
| |
Epoch: |
30 JAN 2005
| |
data arc: |
87 days (222 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(1.1±0.3 km)
| |
semimajor axis/primary radius a/Rp: |
(3.6±1)
| |
orbital period P: |
12.5±0.2 h or
25.8±0.3 h [B06f]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
0.6 km [I7824]
| |
absolute magnitude H: |
20.06 [JPL]
| |
rotation period: |
~2.7 h [I7824]
| |
amplitude delta M: |
?
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
0.05 [H03a]
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
0.1 km [I7824]
| |
diameter ratio Ds/Dp: |
(0.17)
| |
component magnitude difference: |
(4)
| |
rotation period: |
?
|
|
--2002 BM26--discovery and notes:
Primary discovered 26 January 2002 by the LINEAR program at Lincoln Laboratory ETS, New Mexico, USA.
Companion discovered from radar observations made 9 and 10 February 2002 by M.C. Nolan, E. S. Howell, C. Magri, B. Beeney, D. B. Campbell, L. A. M. Benner, S. J. Ostro, J. D. Giorgini, and J.-L. Margot from Arecibo, Puerto Rico; announced 11 February 2002.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Brooks, Heidi E. 2006, American Astronomical Society Meeting Abstracts Orbits of Binary Near-Earth Asteroids from Radar Observations
- Ticha, J., Tichy, M., Galad, A., Kornos, L., Griesser, M., Anzellini, F., Haver, R., Pelloni, A., Gorelli, R., Postel Observatory, J. B., Pozzoli, V., Hasubick, W., Busch, M., Seib, A., Haag, H., Rogers, J. E., Blythe, M., Shelly, F., Bezpalko, M., Huber, R., Manguso, L., Adams, S., Piscitelli, J., Stuart, J., Sayer, R., Evans, J. B., Viggh, H., Dyvig, R., Nomen, J., & Spahr, T. B. 2002, Minor Planet Electronic Circ., 2002-C14 (2002). 2002 BM26
© 2002-2005, 2007 by Wm. Robert Johnston.
Last modified 5 March 2007.
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