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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 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1650231293124348 | 4.8794e-08 | |
| a | 2.984005927650858 | 8.5749e-09 | au |
| q | 2.491575931583058 | 1.4465e-07 | au |
| i | 18.20999391242619 | 5.5211e-06 | deg |
| node | 333.5718645816929 | 1.5278e-05 | deg |
| peri | 12.47045295943511 | 2.1221e-05 | deg |
| M | 348.6174067857099 | 1.6151e-05 | deg |
| tp | 2459060.030107101017
(2020-Jul-29.53010710) | 8.4539e-05 | TDB |
| period | 1882.772945752035
5.15 | 8.1156e-06
2.222e-08 | d
yr |
| n | .1912073363982854 | 8.2419e-10 | deg/d |
| Q | 3.476435923718657 | 9.99e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.5 |
|
n/a |
MPO492748 |
IRAS observations used: 18 |
| diameter |
diameter |
85.937 |
km |
2.151 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
11.45 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Wood, H.J.; Kuiper, G.P. (1963) Astrophys. J. 137, 1279-1285.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.203 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.852 |
|
0.014 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=2.87, mean=6.84, max.=15.66) deg. |
| U-B |
UB |
0.402 |
|
0.031 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=2.87, mean=6.84, max.=15.66) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 61 Danae (A860 RC) Discovered 1860-Sep-09 by Goldschmidt, H. at Paris |
| 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 |
| 1992-Jan-02 20:41 |
< 00:01 |
Jupiter |
1.93168736280618 |
1.93168691112262 |
1.93168781449358 |
4.96481827712755 |
4.87569930467258 |
2448624.361757299 |
0.277413809607974 |
236.93234250587 |
16.2348672167604 |
-86.4831897128571 |
3649707.77549032 |
T |
42 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:01 |
2020-Nov-13 04:34 |
| 2110-Jul-31 06:44 |
00:01 |
Jupiter |
1.93026918554181 |
1.93026875054727 |
1.93026962053975 |
4.96661525770186 |
4.87746306844005 |
2491932.780241291 |
1.13745773229264 |
294.666350505445 |
18.3140231807441 |
-88.001108071872 |
3547468.56723301 |
T |
42 |
CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:01 |
2020-Nov-13 04:34 |
|
Alternate Designations
| A860 RC = 1953 RL1 = A917 SM |
|
|
