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85853 (1999 AB12)
Classification: Main-belt Asteroid          SPK-ID: 2085853
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09369834542311864 5.3832e-08  
a 2.746652314414631 2.1576e-08 au
q 2.489295537101401 1.5709e-07 au
i 16.25789356145672 3.8536e-06 deg
node 297.2638237272805 1.8466e-05 deg
peri 227.498104492825 4.0722e-05 deg
M 299.0417161585746 4.2925e-05 deg
tp 2459678.036164275304
(2022-Apr-08.53616428)
0.0002005 TDB
period 1662.661950962486
4.55
1.9591e-05
5.364e-08
d
yr
n .2165202612543111 2.5513e-09 deg/d
Q 3.004009091727861 2.3598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1999-01-07  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:21  

Additional Information
 Earth MOID = 1.52726 au 
 Jupiter MOID = 2.12312 au 
 T_jup = 3.283 
[ 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 14.98   n/a MPCxxxxx  
diameter diameter 4.031 km 0.477 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85853 (1999 AB12)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1999 AB12 = 2004 FW133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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