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541872 (2012 BT117)
Classification: Main-belt Asteroid          SPK-ID: 2541872
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .090600481600324 4.9469e-07  
a 2.566416205508476 6.741e-08 au
q 2.333897661302532 1.3122e-06 au
i 4.245782338139235 1.1547e-05 deg
node 131.0726836956502 9.747e-05 deg
peri 43.68352708414307 0.00016162 deg
M 19.63100383758608 0.00017504 deg
tp 2459118.610340091638
(2020-Sep-26.11034009)
0.00072771 TDB
period 1501.720330295416
4.11
5.9167e-05
1.62e-07
d
yr
n .2397250624749692 9.445e-09 deg/d
Q 2.79893474971442 7.3517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      63  
   data-arc span      4297 days (11.76 yr)  
   first obs. used      2008-03-15  
   last obs. used      2019-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:43  

Additional Information
 Earth MOID = 1.34063 au 
 Jupiter MOID = 2.16491 au 
 T_jup = 3.422 
[ 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 17.5   n/a MPO430006  

541872 (2012 BT117)          Discovered 2012-Jan-27 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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