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85100 (2189 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2085100
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985249890991555 3.3767e-08  
a 2.584834451253006 1.176e-08 au
q 2.071680219994881 8.9628e-08 au
i 3.090458440671061 3.6944e-06 deg
node 246.5612919063182 8.6341e-05 deg
peri 123.9755065664428 8.7345e-05 deg
M 98.74712662703379 1.5566e-05 deg
tp 2458584.139526758689
(2019-Apr-10.63952676)
6.3766e-05 TDB
period 1517.915259782728
4.16
1.0359e-05
2.836e-08
d
yr
n .2371673897339498 1.6185e-09 deg/d
Q 3.09798868251113 1.4095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      15455 days (42.31 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53079  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:26:29  

Additional Information
 Earth MOID = 1.07348 au 
 Jupiter MOID = 2.38105 au 
 T_jup = 3.393 
[ 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 15.2   n/a MPO302494  
diameter diameter 2.029 km 0.476 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.297   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85100 (2189 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 2189 T-3 = 1998 WE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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