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129660 (1998 QJ51)
Classification: Main-belt Asteroid          SPK-ID: 2129660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2571524510778235 5.9398e-08  
a 3.170889337038884 2.7768e-08 au
q 2.3554873719228 1.8659e-07 au
i 26.57338968155452 7.1457e-06 deg
node 166.6923094289731 1.4103e-05 deg
peri 241.4613304554139 1.9197e-05 deg
M 276.9884966251022 1.4004e-05 deg
tp 2459476.060564218401
(2021-Sep-18.56056422)
8.3451e-05 TDB
period 2062.386490525781
5.65
2.7091e-05
7.417e-08
d
yr
n .1745550611651952 2.2929e-09 deg/d
Q 3.986291302154968 3.4909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62035  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:24:20  

Additional Information
 Earth MOID = 1.46363 au 
 Jupiter MOID = 1.8837 au 
 T_jup = 2.990 
[ 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 14.8   n/a MPO439820  
diameter diameter 6.733 km 1.528 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

129660 (1998 QJ51)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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