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34821 (2001 SF129)
Classification: Main-belt Asteroid          SPK-ID: 2034821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550063763121058 3.5297e-08  
a 2.767292653805847 1.5923e-08 au
q 2.338344647344292 9.4512e-08 au
i 7.193759318157738 3.906e-06 deg
node 205.9973958081539 2.8684e-05 deg
peri 316.7790940567487 3.1253e-05 deg
M 226.7633854395277 1.4442e-05 deg
tp 2459622.803366568258
(2022-Feb-12.30336657)
7.0096e-05 TDB
period 1681.438789957338
4.60
1.4513e-05
3.973e-08
d
yr
n .2141023521939409 1.848e-09 deg/d
Q 3.196240660267401 1.8392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      10756 days (29.45 yr)  
   first obs. used      1990-04-22  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55921  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:35:35  

Additional Information
 Earth MOID = 1.35173 au 
 Jupiter MOID = 1.81475 au 
 T_jup = 3.310 
[ 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 14.4   n/a MPO439333  
diameter diameter 7.130 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34821 (2001 SF129)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 SF129 = 1990 HK4 = 1999 GP48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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