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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 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2175693724120499 | 3.9409e-08 | |
| a | 2.410218856087272 | 1.0233e-08 | au |
| q | 1.885829052192675 | 9.2819e-08 | au |
| i | 1.26751772350328 | 3.6609e-06 | deg |
| node | 318.0346629985469 | 0.00021251 | deg |
| peri | 22.97590917408696 | 0.00021276 | deg |
| M | 185.804238884341 | 1.346e-05 | deg |
| tp | 2459861.830006605000
(2022-Oct-09.33000661) | 5.37e-05 | TDB |
| period | 1366.731319137698
3.74 | 8.704e-06
2.383e-08 | d
yr |
| n | .263402173462398 | 1.6775e-09 | deg/d |
| Q | 2.934608659981869 | 1.2459e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.94 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.596 |
km |
0.879 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.262 |
|
0.180 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 7221 Sallaba | Discovered 1981 Sept. 22 by Z. Vavrova at Klet. |
| Jan Sallaba (1775-1827) was the builder and, from 1821, chief construction manager of the Schwarzenberg court in Cesky Krumlov. He designed and built Joseph's look-out tower at the top of Klet mountain, which opened in 1825, as well as gloriets in Cesky Krumlov and Zlata Koruna. The name was suggested by J. Ticha. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2016-02-22 | Last Updated: 2016-02-25 |
|
Alternate Designations
| 1981 SJ = 1936 QH1 = 1992 OS8 |
|
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