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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .004093131733554372 | 3.2049e-08 | |
| a | 2.888831963604137 | 1.1176e-08 | au |
| q | 2.877007593821002 | 9.6405e-08 | au |
| i | 1.875541147534564 | 4.4956e-06 | deg |
| node | 180.0313348279599 | 9.3007e-05 | deg |
| peri | 235.5230671041127 | 0.00055538 | deg |
| M | 318.0384507563491 | 0.0005469 | deg |
| tp | 2459409.540704992608
(2021-Jul-14.04070499) | 0.0027245 | TDB |
| period | 1793.419336363641
4.91 | 1.0407e-05
2.849e-08 | d
yr |
| n | .2007338678136148 | 1.1649e-09 | deg/d |
| Q | 2.900656333387271 | 1.1222e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.25 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
5.940 |
km |
0.048 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.316 |
|
0.034 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 8740 Vaclav (1998 AS8) Discovered 1998-Jan-12 by Klet at Klet |
| Reference: 19980511/Numbers.arc | Last Updated: 2004-04-19 |
|
Alternate Designations
| 1998 AS8 = 1991 UY2 = 1991 VO17 = 1993 BN13 = 1996 VN38 |
|
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