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3658 Feldman (1982 TR)
Classification: Main-belt Asteroid          SPK-ID: 2003658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06395213930417123 7.3902e-09  
a 2.186982429468686 5.3343e-09 au
q 2.04712022448353 1.5087e-08 au
i 4.013519787684604 6.0341e-07 deg
node 320.3695865606634 6.2631e-06 deg
peri 106.6786661549362 1.6677e-05 deg
M 259.4419890078335 1.5313e-05 deg
tp 2459530.474623077138
(2021-Nov-11.97462308)
5.043e-05 TDB
period 1181.316765672937
3.23
4.3221e-06
1.183e-08
d
yr
n .3047446802254821 1.115e-09 deg/d
Q 2.326844634453843 5.6755e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2379  
   data-arc span      23997 days (65.70 yr)  
   first obs. used      1955-03-24  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47257  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:23:31  

Additional Information
 Earth MOID = 1.06462 au 
 Jupiter MOID = 2.8195 au 
 T_jup = 3.670 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.46   n/a E2021B10  
diameter diameter 5.021 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3658 Feldman (1982 TR)          Discovered 1982-Oct-13 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 TR = 1972 TU8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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