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4596 (1981 QB)
Classification: Amor [NEO]          SPK-ID: 2004596
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .518722754831459 8.4425e-08  
a 2.240682318480266 1.1448e-08 au
q 1.078389413536042 1.8648e-07 au
i 37.09059313627858 1.862e-05 deg
node 154.2896524627226 1.6929e-05 deg
peri 248.4111363847627 2.9635e-05 deg
M 68.99822973823738 3.057e-05 deg
tp 2457165.696641194982
(2015-May-23.19664120)
0.00010253 JED
period 1225.092433392708
3.35
9.3889e-06
2.571e-08
d
yr
n .2938553779187376 2.2521e-09 deg/d
Q 3.402975223424491 1.7387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      12560 days (34.39 yr)  
   first obs. used      1981-08-28  
   last obs. used      2016-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .66696  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-18 06:18:07  

Additional Information
 Earth MOID = .29861 au 
 Jupiter MOID = 2.87211 au 
 T_jup = 3.217 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0 mag n/a PDS3 (MPC 17272)  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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