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1002 Olbersia (A923 PJ)
Classification: Main-belt Asteroid          SPK-ID: 2001002
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1549409922904375 3.8428e-08  
a 2.786003567031047 1.0338e-08 au
q 2.354337409830559 1.0946e-07 au
i 10.76964288492763 4.3932e-06 deg
node 343.738399952889 2.12e-05 deg
peri 355.2863435761373 2.4911e-05 deg
M 276.8202576571556 1.4456e-05 deg
tp 2459392.951505162225
(2021-Jun-27.45150516)
6.916e-05 TDB
period 1698.521032634033
4.65
9.4542e-06
2.588e-08
d
yr
n .2119490975285241 1.1797e-09 deg/d
Q 3.217669724231536 1.194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2580  
   data-arc span      31176 days (85.36 yr)  
   first obs. used      1935-02-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:24:49  

Additional Information
 Earth MOID = 1.34587 au 
 Jupiter MOID = 2.17867 au 
 T_jup = 3.288 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.9   n/a MPO337251  
diameter diameter 22.938 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.244 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.147   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1002 Olbersia (A923 PJ)          Discovered 1923-Aug-15 by Albitzkij, V. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 PJ = 1956 UR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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