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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1944338112364223 | 4.0764e-08 | |
| a | 2.729409162801764 | 8.3665e-09 | au |
| q | 2.198719736854604 | 1.1128e-07 | au |
| i | 14.43108292424145 | 4.6215e-06 | deg |
| node | 325.3435463115191 | 1.4385e-05 | deg |
| peri | 31.08992173452974 | 1.732e-05 | deg |
| M | 124.518700995944 | 1.0012e-05 | deg |
| tp | 2458430.816717391004
(2018-Nov-08.31671739) | 4.5267e-05 | TDB |
| period | 1647.029563422116
4.51 | 7.573e-06
2.073e-08 | d
yr |
| n | .2185753115760775 | 1.005e-09 | deg/d |
| Q | 3.260098588748923 | 9.9933e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.0 |
|
n/a |
MPO452167 |
|
| diameter |
diameter |
30.819 |
km |
0.553 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
22.027 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Holliday, B. (2001) Minor Planet Bull. 28, 22.]
[Warner, B.D. (2001) Minor Planet Bull. 28, 4-5.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.081 |
|
0.011 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| SMASSII spectral type |
spec_B |
Cgh |
|
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) |
|
| 706 Hirundo (A910 TF) Discovered 1910-Oct-09 by Helffrich, J. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A910 TF = 1948 AE = 1957 DA = 1977 QB = A924 WD |
|
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