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49653 (1999 JO85)
Classification: Main-belt Asteroid          SPK-ID: 2049653
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08429785148028437 4.0629e-08  
a 2.637913029472838 1.2821e-08 au
q 2.41554262869643 1.1079e-07 au
i 15.46727464585561 3.9437e-06 deg
node 109.8436846505166 1.6431e-05 deg
peri 186.4085755256463 3.1678e-05 deg
M 279.3643586402013 2.897e-05 deg
tp 2459351.020707966481
(2021-May-16.52070797)
0.00012644 TDB
period 1564.909173412299
4.28
1.1409e-05
3.124e-08
d
yr
n .2300452998272205 1.6771e-09 deg/d
Q 2.860283430249246 1.3901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      23894 days (65.42 yr)  
   first obs. used      1955-03-14  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:31:32  

Additional Information
 Earth MOID = 1.3999 au 
 Jupiter MOID = 2.32882 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456996.5 (2014-Dec-05.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08385520772641257 4.0773e-08  
q 2.418487425691876 1.1109e-07 au
tp 2456213.441321742007
(2012-Oct-12.94132174)
0.00012341 TDB
node 109.9092855540295 1.6403e-05 deg
peri 185.1207963287865 3.168e-05 deg
i 15.47798661541394 3.9462e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      23894 days (65.42 yr)  
   first obs. used      1955-03-14  
   last obs. used      2020-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:31:32  

Additional Information
 Jupiter MOID = 2.32882 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.662445447309023E-15 -4.505648372772038E-15 -6.529398976681107E-13 -6.821443169238915E-15 -8.316880374375089E-14 -2.660352677250185E-15
q -4.505648372772038E-15 1.234128057767908E-14 1.80683643801472E-12 1.953004079268441E-14 2.466589876784039E-13 7.877145058542205E-15
tp -6.529398976681107E-13 1.80683643801472E-12 1.522928936739034E-8 3.521469883217888E-11 3.361558863536526E-9 1.983925571532092E-11
node -6.821443169238915E-15 1.953004079268441E-14 3.521469883217888E-11 2.690448246330071E-10 -2.511981193131797E-10 1.715654678349257E-12
peri -8.316880374375089E-14 2.466589876784039E-13 3.361558863536526E-9 -2.511981193131797E-10 1.003648948129239E-9 2.736360744892313E-12
i -2.660352677250185E-15 7.877145058542205E-15 1.983925571532092E-11 1.715654678349257E-12 2.736360744892313E-12 1.557270793600537E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO385134  
diameter diameter 5.536 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.209   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49653 (1999 JO85)          Discovered 1999-May-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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