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85861 (1999 AJ33)
Classification: Main-belt Asteroid          SPK-ID: 2085861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05445823163949539 3.4096e-08  
a 2.333107007714109 8.6667e-09 au
q 2.206050125848284 7.9642e-08 au
i 6.93394472829738 3.6335e-06 deg
node 119.1566710059404 3.3164e-05 deg
peri 352.5545574478926 5.0258e-05 deg
M 255.1474274094095 3.7492e-05 deg
tp 2458979.620268938455
(2020-May-10.12026894)
0.00013566 TDB
period 1301.668556581432
3.56
7.2529e-06
1.986e-08
d
yr
n .2765681003660923 1.541e-09 deg/d
Q 2.460163889579934 9.1387e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1182  
   data-arc span      7624 days (20.87 yr)  
   first obs. used      1998-12-16  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:15:03  

Additional Information
 Earth MOID = 1.223 au 
 Jupiter MOID = 2.58658 au 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO453289  
diameter diameter 1.962 km 0.406 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.382   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85861 (1999 AJ33)          Discovered 1999-Jan-15 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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