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12951 (1041 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2012951
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130966592521779 2.9334e-08  
a 2.946852095532595 1.309e-08 au
q 2.613572968217579 8.4949e-08 au
i 2.058084329035286 3.3439e-06 deg
node 175.7199306917172 0.00010223 deg
peri 161.2127371729468 0.00010356 deg
M 103.1801444267349 1.6859e-05 deg
tp 2458470.922450294036
(2018-Dec-18.42245029)
8.6458e-05 TDB
period 1847.719044719116
5.06
1.2311e-05
3.371e-08
d
yr
n .194834815947208 1.2982e-09 deg/d
Q 3.280131222847611 1.457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2189  
   data-arc span      16998 days (46.54 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:48:42  

Additional Information
 Earth MOID = 1.60426 au 
 Jupiter MOID = 2.07553 au 
 T_jup = 3.260 
[ 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 13.5   n/a MPO332940  
diameter diameter 5.751 km 0.421 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12951 (1041 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1041 T-2 = 1983 RK8 = 1988 RM10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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