[ hide orbit diagram ]
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.
[ revert to old Java-based viewer ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1825145894432709 | 2.913e-08 | |
| a | 2.249844181528026 | 7.396e-09 | au |
| q | 1.839214794425106 | 6.7187e-08 | au |
| i | 5.956791162241895 | 3.4016e-06 | deg |
| node | 66.30083412140411 | 3.4969e-05 | deg |
| peri | 220.6571550267815 | 3.7793e-05 | deg |
| M | 259.1703160889369 | 1.7894e-05 | deg |
| tp | 2459345.733549428779
(2021-May-11.23354943) | 6.2258e-05 | TDB |
| period | 1232.613978081943
3.37 | 6.078e-06
1.664e-08 | d
yr |
| n | .292062240410572 | 1.4402e-09 | deg/d |
| Q | 2.660473568630946 | 8.7458e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.1 |
|
n/a |
MPO502226 |
|
| diameter |
diameter |
3.859 |
km |
0.232 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.327 |
|
0.071 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 7738 Heyman | Discovered 1981 Nov. 24 at the Oak Ridge Observatory. |
| Named in honor of I. Michael Heyman (b. 1930), secretary and linchpin of the Smithsonian Institution's diverse and incomparably rich programs. Educator, legal scholar, civil rights champion, he has unfailingly supported research at the frontiers of astronomy. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 19980808/MPCPages.arc | Last Updated: 2009-11-17 |
|
|
