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902 Probitas (A918 RG)
Classification: Main-belt Asteroid          SPK-ID: 2000902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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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 .1801322334442672 4.6992e-08  
a 2.445625775163689 7.8671e-09 au
q 2.005089742114586 1.1268e-07 au
i 6.347127053658641 4.7775e-06 deg
node 353.0586399890155 2.7213e-05 deg
peri 28.45087992363146 2.879e-05 deg
M 190.7621750076061 1.226e-05 deg
tp 2459657.217161738351
(2022-Mar-18.71716174)
4.9764e-05 TDB
period 1396.958264125836
3.82
6.7406e-06
1.845e-08
d
yr
n .2577027598066965 1.2435e-09 deg/d
Q 2.886161808212791 9.2842e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2723  
   data-arc span      37164 days (101.75 yr)  
   first obs. used      1918-09-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:27  

Additional Information
 Earth MOID = 1.01003 au 
 Jupiter MOID = 2.59077 au 
 T_jup = 3.468 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1   n/a MPO473774  
diameter diameter 8.552 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.168 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durkee, R.I. (2011) Minor Planet Bull. 38, 167-168.]
[Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.]
geometric albedo albedo 0.383   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

902 Probitas (A918 RG)          Discovered 1918-Sep-03 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A918 RG = A924 EL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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