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129605 (1997 WH29)
Classification: Main-belt Asteroid          SPK-ID: 2129605
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06951113460093949 6.0037e-08  
a 3.180601726467697 3.4514e-08 au
q 2.959514491747221 2.0416e-07 au
i 8.161944551952718 6.5319e-06 deg
node 240.3867326145718 4.8372e-05 deg
peri 200.5299606711043 7.253e-05 deg
M 306.9784639293018 5.4335e-05 deg
tp 2459305.649151730487
(2021-Apr-01.14915173)
0.00031393 TDB
period 2071.869333934384
5.67
3.3724e-05
9.233e-08
d
yr
n .1737561312886352 2.8282e-09 deg/d
Q 3.401688961188174 3.6913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      8002 days (21.91 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53653  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 15:17:46  

Additional Information
 Earth MOID = 1.97657 au 
 Jupiter MOID = 1.85324 au 
 T_jup = 3.180 
[ 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 15.3   n/a MPO493741  

129605 (1997 WH29)          Discovered 1997-Nov-30 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1997 WH29 = 2003 WA61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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