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4596 (1981 QB)
Classification: Amor [NEO]          SPK-ID: 2004596
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 108 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5199542216102424 7.2015e-08  
a 2.238728418140025 6.7e-09 au
q 1.074692126089299 1.5965e-07 au
i 37.07686352400383 1.0765e-05 deg
node 154.2301421880091 9.9185e-06 deg
peri 248.4024332386285 1.4292e-05 deg
M 179.6433300288284 1.1679e-05 deg
tp 2458389.967002417304
(2018-Sep-28.46700242)
3.83e-05 TDB
period 1223.490341080291
3.35
5.4924e-06
1.504e-08
d
yr
n .2942401651345567 1.3209e-09 deg/d
Q 3.402764710190751 1.0184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      14064 days (38.51 yr)  
   first obs. used      1981-08-28  
   last obs. used      2020-02-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-01 05:07:33  

Additional Information
 Earth MOID = .296609 au 
 Jupiter MOID = 2.87971 au 
 T_jup = 3.218 
[ 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 16.4   n/a MPO467684  

4596 (1981 QB)          Discovered 1981-Aug-28 by Kowal, C. T. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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