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20750 (2000 AF199)
Classification: Main-belt Asteroid          SPK-ID: 2020750
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2534342191360204 2.8034e-08  
a 2.637890323192421 1.2758e-08 au
q 1.969358648967686 7.6849e-08 au
i 16.39200880405451 8.1769e-07 deg
node 96.72765376262383 2.8522e-06 deg
peri 250.4404205595768 4.156e-06 deg
M 359.7977656596827 3.1132e-06 deg
tp 2459201.379095244830
(2020-Dec-17.87909524)
1.3537e-05 TDB
period 1564.888968127103
4.28
1.1353e-05
3.108e-08
d
yr
n .2300482700896387 1.6689e-09 deg/d
Q 3.306421997417157 1.5992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1898  
   data-arc span      13916 days (38.10 yr)  
   first obs. used      1982-12-11  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46609  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:30:06  

Additional Information
 Earth MOID = 1.02538 au 
 Jupiter MOID = 2.28431 au 
 T_jup = 3.294 
[ 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 13.41   n/a E2021B10  
diameter diameter 7.842 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20750 (2000 AF199)          Discovered 2000-Jan-09 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 AF199 = 1998 HV123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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