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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 88 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .0396200394221736 | 1.2289e-08 | |
| a | 3.134046063192395 | 9.8378e-09 | au |
| q | 3.009875034617804 | 3.6345e-08 | au |
| i | 10.79652104274938 | 8.9352e-07 | deg |
| node | 177.458333461379 | 1.6891e-06 | deg |
| peri | 227.6896850813989 | 3.1197e-05 | deg |
| M | 11.20034668058964 | 2.8747e-05 | deg |
| tp | 2459137.449947214405
(2020-Oct-14.94994721) | 0.00016192 | TDB |
| period | 2026.546110590512
5.55 | 9.542e-06
2.612e-08 | d
yr |
| n | .1776421459737228 | 8.3643e-10 | deg/d |
| Q | 3.258217091766985 | 1.0228e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.11 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
93.617 |
km |
1.015 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
24.821 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.] |
| geometric albedo |
albedo |
0.041 |
|
0.006 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.730 |
|
0.021 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=5.22, mean=5.38, max.=5.53) deg. |
| U-B |
UB |
0.368 |
|
0.040 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=5.22, mean=5.38, max.=5.53) deg. |
| Tholen spectral type |
spec_T |
CX |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
| 589 Croatia (A906 EC) Discovered 1906-Mar-03 by Kopff, A. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| A906 EC = 1936 WM = 1947 RA = 1953 RF1 = 1953 VR1 = 1953 VU = A912 HH |
|
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