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JPL Small-Body Database Browser
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17335 (2281 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2017335
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0318725876107292 3.4319e-08  
a 2.771224714646388 1.218e-08 au
q 2.682898612139803 9.3603e-08 au
i 2.082735436903507 3.9816e-06 deg
node 346.7598959644721 8.7038e-05 deg
peri 310.7685744573773 0.0001048 deg
M 109.4063755526996 5.7531e-05 deg
tp 2458488.410144874355
(2019-Jan-04.91014487)
0.00026963 TDB
period 1685.023810668438
4.61
1.1109e-05
3.041e-08
d
yr
n .2136468325970957 1.4085e-09 deg/d
Q 2.859550817152973 1.2568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1691  
   data-arc span      23919 days (65.49 yr)  
   first obs. used      1954-07-31  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:01:55  

Additional Information
 Earth MOID = 1.66765 au 
 Jupiter MOID = 2.19854 au 
 T_jup = 3.336 
[ 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 14.1   n/a MPO449078  
diameter diameter 5.948 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.225 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.104   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17335 (2281 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
 2281 T-2 = 1991 PM10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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