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JPL Small-Body Database Browser
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359954 (2012 BT31)
Classification: Main-belt Asteroid          SPK-ID: 2359954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298399322408557 7.3298e-08  
a 2.985497487067721 4.6105e-08 au
q 2.597860695641604 2.1638e-07 au
i 15.19408549160824 8.7808e-06 deg
node 102.1640309536069 3.3371e-05 deg
peri 211.4110465710723 5.1182e-05 deg
M 24.82474989339988 3.926e-05 deg
tp 2458870.571066756382
(2020-Jan-22.07106676)
0.00020526 TDB
period 1884.184782064543
5.16
4.3646e-05
1.195e-07
d
yr
n .1910640630509392 4.4259e-09 deg/d
Q 3.373134278493839 5.2091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      5961 days (16.32 yr)  
   first obs. used      2003-04-01  
   last obs. used      2019-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:17  

Additional Information
 Earth MOID = 1.59467 au 
 Jupiter MOID = 1.88916 au 
 T_jup = 3.192 
[ 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 15.6   n/a MPO446600  

359954 (2012 BT31)          Discovered 2003-Apr-01 by Sloan Digital Sky Survey at Apache Point
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2012 BT31 = 2005 WK147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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