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20712 (1999 XF13)
Classification: Main-belt Asteroid          SPK-ID: 2020712
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054685357128232 3.2085e-08  
a 2.600599120792978 1.1007e-08 au
q 2.326317739546887 8.4533e-08 au
i 14.21786188597598 4.3745e-06 deg
node 82.88358846516284 1.3942e-05 deg
peri 90.38013636669442 2.6194e-05 deg
M 260.4414787525298 2.3197e-05 deg
tp 2459624.127827498364
(2022-Feb-13.62782750)
9.9688e-05 TDB
period 1531.822851409481
4.19
9.7251e-06
2.663e-08
d
yr
n .2350141203787058 1.492e-09 deg/d
Q 2.874880502039068 1.2168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      17837 days (48.84 yr)  
   first obs. used      1972-05-12  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38352  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:27:50  

Additional Information
 Earth MOID = 1.38256 au 
 Jupiter MOID = 2.24155 au 
 T_jup = 3.364 
[ 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 13.1   n/a MPO449104  
diameter diameter 5.923 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20712 (1999 XF13)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XF13 = 1972 JG1 = 1980 FR11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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