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70012 (1998 XC78)
Classification: Main-belt Asteroid          SPK-ID: 2070012
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .188199844688829 4.5141e-08  
a 3.139559522580473 2.3986e-08 au
q 2.548694908039494 1.442e-07 au
i 12.47552961732872 6.5103e-06 deg
node 191.32216814 2.0338e-05 deg
peri 222.5688811793889 2.5311e-05 deg
M 317.5122447481855 1.7066e-05 deg
tp 2459240.307518246864
(2021-Jan-25.80751825)
9.7386e-05 TDB
period 2031.896155897392
5.56
2.3285e-05
6.375e-08
d
yr
n .1771744087192316 2.0304e-09 deg/d
Q 3.730424137121452 2.85e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      8455 days (23.15 yr)  
   first obs. used      1997-06-11  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:24:55  

Additional Information
 Earth MOID = 1.57433 au 
 Jupiter MOID = 1.75964 au 
 T_jup = 3.147 
[ 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 14.2   n/a MPO263880  
diameter diameter 8.095 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70012 (1998 XC78)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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