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85081 (2153 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2085081
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391061024438871 6.0397e-08  
a 3.15126784434731 2.0036e-08 au
q 2.712907256763406 1.9002e-07 au
i 4.58515889486946 5.7075e-06 deg
node 357.7536148912793 4.8825e-05 deg
peri 347.4967301338738 5.141e-05 deg
M 206.419857710007 1.9296e-05 deg
tp 2460268.183787538679
(2023-Nov-19.68378754)
0.00011361 TDB
period 2043.273035399261
5.59
1.9486e-05
5.335e-08
d
yr
n .1761879072268259 1.6803e-09 deg/d
Q 3.589628431931214 2.2823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      17428 days (47.72 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:09:32  

Additional Information
 Earth MOID = 1.7051 au 
 Jupiter MOID = 1.82082 au 
 T_jup = 3.188 
[ 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 14.66   n/a MPO637169  
diameter diameter 5.552 km 0.772 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85081 (2153 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 2153 T-2 = 2001 RA48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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