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JPL Small-Body Database Browser
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12959 (3086 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2012959
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07727277039910653 4.1609e-08  
a 2.637910453600179 1.2696e-08 au
q 2.434071804785729 1.106e-07 au
i 4.165762876661425 5.1093e-06 deg
node 62.44779898284721 5.69e-05 deg
peri 283.7571151654197 6.5341e-05 deg
M 334.577777740621 3.3396e-05 deg
tp 2459111.009473751457
(2020-Sep-18.50947375)
0.00014538 TDB
period 1564.906881256118
4.28
1.1298e-05
3.093e-08
d
yr
n .2300456367800208 1.6608e-09 deg/d
Q 2.841749102414628 1.3678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      16699 days (45.72 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54548  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:30:29  

Additional Information
 Earth MOID = 1.43112 au 
 Jupiter MOID = 2.45957 au 
 T_jup = 3.389 
[ 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 14.7   n/a MPO473942  
diameter diameter 3.586 km 0.667 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12959 (3086 T-2)          Discovered 1973-Sep-30 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3086 T-2 = 1982 VQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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