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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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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550632438616399 2.5385e-08  
a 2.787510026919238 9.3872e-09 au
q 2.355269679848294 7.4656e-08 au
i 10.77030411876718 1.0416e-06 deg
node 343.7201127036634 5.6895e-06 deg
peri 355.1111440985871 7.8639e-06 deg
M 319.3805600503539 4.0405e-06 deg
tp 2459392.302610889092
(2021-Jun-26.80261089)
1.9471e-05 TDB
period 1699.898866298246
4.65
8.5868e-06
2.351e-08
d
yr
n .2117773046016246 1.0698e-09 deg/d
Q 3.219750373990182 1.0843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2740  
   data-arc span      31282 days (85.65 yr)  
   first obs. used      1935-02-08  
   last obs. used      2020-10-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:47:50  

Additional Information
 Earth MOID = 1.34492 au 
 Jupiter MOID = 2.17655 au 
 T_jup = 3.287 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456397.5 (2013-Apr-15.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516806805988357 2.5532e-08  
q 2.36746816701124 7.4933e-08 au
tp 2455996.108729989833
(2012-Mar-09.60872999)
2.0367e-05 TDB
node 343.8847729950963 5.7064e-06 deg
peri 355.6821069314635 7.9413e-06 deg
i 10.74747315514801 1.0401e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2740  
   data-arc span      31282 days (85.65 yr)  
   first obs. used      1935-02-08  
   last obs. used      2020-10-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:47:50  

Additional Information
 Jupiter MOID = 2.17655 au 
 T_jup = 3.287 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.518893095040097E-16 -1.904061247788875E-15 9.347802615741125E-14 -5.273096884048809E-15 6.050024118276382E-14 3.043591041414701E-15
q -1.904061247788875E-15 5.614990928352859E-15 -3.365229700497929E-13 1.320304691178808E-14 -1.790723372812973E-13 -9.332851587231976E-15
tp 9.347802615741125E-14 -3.365229700497929E-13 4.148007090679616E-10 -3.272886511914583E-11 1.111719096780668E-10 -7.631709896610578E-12
node -5.273096884048809E-15 1.320304691178808E-14 -3.272886511914583E-11 3.256310633388369E-11 -3.853037058751012E-11 2.824141810969582E-12
peri 6.050024118276382E-14 -1.790723372812973E-13 1.111719096780668E-10 -3.853037058751012E-11 6.306414890814428E-11 -4.198058023696708E-12
i 3.043591041414701E-15 -9.332851587231976E-15 -7.631709896610578E-12 2.824141810969582E-12 -4.198058023696708E-12 1.081734363576386E-12

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 10.99   n/a E2021B10  
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. 2020-October); 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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