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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1534648703349389 | 3.6502e-08 | |
| a | 2.599438314379161 | 6.3135e-09 | au |
| q | 2.20051585051929 | 9.4419e-08 | au |
| i | 1.041046890309528 | 3.1346e-06 | deg |
| node | 109.9761595640269 | 0.00022799 | deg |
| peri | 268.742634375986 | 0.00022822 | deg |
| M | 326.6541049261867 | 1.0098e-05 | deg |
| tp | 2459142.293910270653
(2020-Oct-19.79391027) | 4.2987e-05 | TDB |
| period | 1530.797346553202
4.19 | 5.577e-06
1.527e-08 | d
yr |
| n | .2351715599785881 | 8.5677e-10 | deg/d |
| Q | 2.99836077823903 | 7.2824e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.7 |
|
n/a |
MPO492757 |
IRAS observations used: 2 |
| diameter |
diameter |
17.016 |
km |
0.196 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
7.556 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Alkema, M.S. (2013) Minor Planet Bull. 40, 133-137.]
[Aznar, A. (2013) Posting on CALL web site. http://www.MinorPlanet.info/call.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
| geometric albedo |
albedo |
0.271 |
|
0.049 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.816 |
|
0.037 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=5.75, mean=6.93, max.=7.73) deg. |
| U-B |
UB |
0.413 |
|
0.064 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=7.31 deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
| 644 Cosima (A907 RG) Discovered 1907-Sep-07 by Kopff, A. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 1994-Jul-03 06:21 |
00:01 |
Iris |
0.0474780610639014 |
0.0474774793474665 |
0.0474786427897742 |
2.25829001070159 |
2.25828995708486 |
2449536.764861343 |
1.123970118586 |
51.9020012004531 |
18.3502543533424 |
-62.515247048878 |
348539.05205096 |
T |
41 |
CATAB v2.0f-lin.ifort 2020-Dec-18 01:55:17 |
2020-Dec-18 01:55 |
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