(2577) Litva
compiled by Wm. Robert Johnston
last updated 6 June 2009
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: |
1.9043216 AU
| |
orbital period P: |
2.628 y (=959.862 d)
| |
eccentricity e: |
0.1381890
| |
perihelion distance q: |
1.6411653 AU
| |
aphelion distance Q: |
2.1674779 AU
| |
inclination i: |
22.90681°
| |
argument of perihelion omega: |
283.98110°
| |
ascending node OMEGA: |
182.63373°
| |
mean anomaly M: |
71.53444°
| |
perihelion passage TP: |
2008-12-09.269
| |
Epoch: |
18 JUN 2009
| |
data arc: |
1934-2004 (224 obs.)
| orbital data, secondary:
|
semimajor axis a: |
(18 km?)
| |
semimajor axis/primary radius a/Rp: |
(5?)
| |
orbital period P: |
35.78 ± 0.05 h [C1715]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(7 km?)
| |
absolute magnitude H: |
13.18 [JPL]
| |
rotation period: |
2.8141 ± 0.0006 h [C1715]
| |
amplitude delta M: |
0.30 ± 0.03 [S04b]
0.20 ± 0.02; 0.35 [HHa]
| |
color index U-B: |
0.340 ± 0.025 [JPL]
| |
color index B-V: |
0.787 ± 0.020 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
?
| |
geometric albedo: |
(0.16) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
EU (JPL)
|
other data, secondary:
|
diameter: |
(2.5 km?)
| |
diameter ratio Ds/Dp: |
0.35 ± 0.02 [C1715]
| |
component magnitude difference: |
(2.3)
| |
rotation period: |
?
|
|
--(2577) Litva--discovery and notes:
Primary discovered 12 March 1975 by N. S. Chernykh at Nauchny, subsequently linked to prediscovery observations from 1934. Alternate designations 1975 EE3, 1934 VY, 1954 JD, 1976 SA2.
Secondary discovered by B. D. Warner, P. Pravec, A. W. Harris, D. Higgins, C. Bembrick, and J. Brinsfield from lightcurve observations obtained 28 February-8 March 2009; announced 11 March 2009.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2009 by Wm. Robert Johnston.
Last modified 6 June 2009.
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