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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 107 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5199519633867483 7.2071e-08  
a 2.239051705920085 6.7579e-09 au
q 1.074852375302489 1.5977e-07 au
i 37.07466777199136 1.0828e-05 deg
node 154.226869018113 9.9377e-06 deg
peri 248.4279440354046 1.4359e-05 deg
M 61.9062034105861 1.1462e-05 deg
tp 2458390.060975169218
(2018-Sep-28.56097517)
3.8496e-05 TDB
period 1223.755371277165
3.35
5.5403e-06
1.517e-08
d
yr
n .2941764411822668 1.3318e-09 deg/d
Q 3.403251036537682 1.0272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      13732 days (37.60 yr)  
   first obs. used      1981-08-28  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53893  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-04 07:36:23  

Additional Information
 Earth MOID = .296212 au 
 Jupiter MOID = 2.87662 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 16.3   n/a MPO412205  

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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