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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883213703488105 4.3928e-08  
a 3.139843271106373 1.6993e-08 au
q 2.548543683611129 1.4004e-07 au
i 12.47528006179443 5.6995e-06 deg
node 191.3219091633473 1.4888e-05 deg
peri 222.592561464909 1.9806e-05 deg
M 352.9346613724855 1.0863e-05 deg
tp 2459240.383279598768
(2021-Jan-25.88327960)
6.1235e-05 TDB
period 2032.171621561386
5.56
1.6497e-05
4.517e-08
d
yr
n .1771503923095825 1.4381e-09 deg/d
Q 3.731142858601617 2.0193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1236  
   data-arc span      8642 days (23.66 yr)  
   first obs. used      1997-06-11  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49037  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:46:24  

Additional Information
 Earth MOID = 1.57334 au 
 Jupiter MOID = 1.76007 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 14.24   n/a E2021B10  
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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