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17331 (2056 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2017331
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07589866451148912 4.2849e-08  
a 2.26801617754795 7.9351e-09 au
q 2.095876778581608 9.892e-08 au
i 4.653945799820069 4.8101e-06 deg
node 350.8832860693498 4.2681e-05 deg
peri 6.534963537880533 4.8823e-05 deg
M 245.9681943455089 2.4178e-05 deg
tp 2459395.676535445521
(2021-Jun-30.17653545)
8.4356e-05 TDB
period 1247.577830973199
3.42
6.5474e-06
1.793e-08
d
yr
n .2885591512308089 1.5144e-09 deg/d
Q 2.440155576514292 8.5374e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      17023 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55167  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:34:31  

Additional Information
 Earth MOID = 1.09137 au 
 Jupiter MOID = 2.85469 au 
 T_jup = 3.607 
[ 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 15.3   n/a MPO319302  

17331 (2056 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2056 T-2 = 1990 RS16 = 1997 SJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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