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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07577984716675275 4.5599e-08  
a 2.268090664052944 8.2616e-09 au
q 2.096215100170673 1.044e-07 au
i 4.653678613188229 5.1421e-06 deg
node 350.8863577761862 4.401e-05 deg
peri 6.702839785880354 5.0455e-05 deg
M 130.3487017013621 2.4601e-05 deg
tp 2458148.755106124505
(2018-Jan-30.25510612)		 8.4878e-05 TDB
period 1247.639291166631
3.42		 6.8168e-06
1.866e-08		 d
yr
n .288544936464268 1.5766e-09 deg/d
Q 2.439966227935215 8.8876e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1131  
   data-arc span      16604 days (45.46 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55893  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:18:02  

Additional Information
 Earth MOID = 1.09085 au 
 Jupiter MOID = 2.85542 au 
 T_jup = 3.606 
[ 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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