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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5186920230009533 9.3209e-08  
a 2.240079739810348 1.1683e-08 AU
q 1.078168247884669 2.0588e-07 AU
i 37.08991102232791 2.6673e-05 deg
node 154.2955478770652 1.8046e-05 deg
peri 248.3978143856197 3.561e-05 deg
M 252.6579273569545 3.3865e-05 deg
tp 2457165.641436701451
(2015-May-23.14143670)
0.00011777 JED
period 1224.598277039499
3.35
9.5802e-06
2.623e-08
d
yr
n .293973955990131 2.2998e-09 deg/d
Q 3.401991231736026 1.7743e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      11134 days (30.48 yr)  
   first obs. used      1981-08-28  
   last obs. used      2012-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .73201  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 09:19:00  

Additional Information
 Earth MOID = .298847 AU 
 T_jup = 3.218 
[ 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 (675)
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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