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393131 (2013 BL47)
Classification: Main-belt Asteroid          SPK-ID: 2393131
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08301717975785872 6.9735e-08  
a 3.087878311757926 5.5301e-08 au
q 2.831531362880325 2.2665e-07 au
i 4.900613113119923 7.7956e-06 deg
node 93.06086367380252 0.00010801 deg
peri 203.7767141739318 0.00012699 deg
M 311.6682668438069 6.6655e-05 deg
tp 2459266.583877637344
(2021-Feb-21.08387764)
0.00036508 TDB
period 1981.931739130479
5.43
5.3242e-05
1.458e-07
d
yr
n .181640968199006 4.8796e-09 deg/d
Q 3.344225260635528 5.9892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      6237 days (17.08 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:25:51  

Additional Information
 Earth MOID = 1.81645 au 
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457039.5 (2015-Jan-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08142442426892886 6.9836e-08  
q 2.836795343783148 2.2669e-07 au
tp 2457286.204813881389
(2015-Sep-20.70481388)
0.00038883 TDB
node 93.07303879445669 0.00010801 deg
peri 204.1362287739536 0.00012765 deg
i 4.900219433851581 7.7946e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      6237 days (17.08 yr)  
   first obs. used      2003-04-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:25:51  

Additional Information
 Jupiter MOID = 1.8109 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.877026985533231E-15 -1.542330461491406E-14 3.193759003278196E-12 -6.464557922991534E-14 6.000931804159559E-13 6.787994702502942E-16
q -1.542330461491406E-14 5.13869865313618E-14 -1.744374528130961E-11 2.175780288675067E-13 -3.241927399826539E-12 1.0042735545187E-15
tp 3.193759003278196E-12 -1.744374528130961E-11 1.511849939481888E-7 -1.092816924404339E-10 2.659701546831039E-8 -2.092238419159514E-11
node -6.464557922991534E-14 2.175780288675067E-13 -1.092816924404339E-10 1.166580383133779E-8 -1.164074323849999E-8 -4.548215194795796E-11
peri 6.000931804159559E-13 -3.241927399826539E-12 2.659701546831039E-8 -1.164074323849999E-8 1.62935770890971E-8 4.164548191439199E-11
i 6.787994702502942E-16 1.0042735545187E-15 -2.092238419159514E-11 -4.548215194795796E-11 4.164548191439199E-11 6.075523906681472E-11

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 16.2   n/a MPO472036  

393131 (2013 BL47)          Discovered 2009-Apr-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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