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216460 (1250 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2216460
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1731714025355243 4.6879e-08  
a 2.551341480677441 1.4406e-08 au
q 2.109522098121467 1.2604e-07 au
i 5.554228329935041 5.7134e-06 deg
node 177.3842310017487 5.4088e-05 deg
peri 108.0797567304544 5.8396e-05 deg
M 271.8843963290867 2.3741e-05 deg
tp 2459564.835619191490
(2021-Dec-16.33561919)
9.969e-05 TDB
period 1488.508475738131
4.08
1.2608e-05
3.452e-08
d
yr
n .2418528385076752 2.0485e-09 deg/d
Q 2.993160863233415 1.6901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      488  
   data-arc span      17391 days (47.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55426  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:43  

Additional Information
 Earth MOID = 1.09945 au 
 Jupiter MOID = 2.18807 au 
 T_jup = 3.412 
[ 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 16.23   n/a E2021B55  
diameter diameter 3.482 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.048   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

216460 (1250 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 1250 T-2 = 2006 UL105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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