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52299 (1991 NJ1)
Classification: Main-belt Asteroid          SPK-ID: 2052299
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196901024563584 7.3689e-08  
a 2.239407446883289 1.4743e-08 AU
q 1.747431795435967 1.7008e-07 AU
i 6.16142642387649 7.0917e-06 deg
node 120.0820130157153 6.1263e-05 deg
peri 204.2484114698513 6.3607e-05 deg
M 283.8297657006676 1.926e-05 deg
tp 2457059.488747114626
(2015-Feb-05.98874711)
6.7087e-05 JED
period 1224.047028592146
3.35
1.2088e-05
3.31e-08
d
yr
n .2941063468893502 2.9044e-09 deg/d
Q 2.731383098330611 1.7982e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      8389 days (22.97 yr)  
   first obs. used      1991-07-12  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59964  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:38:36  

Additional Information
 Earth MOID = .73605 AU 
 T_jup = 3.596 
[ 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 15.9 mag n/a MPO263765  

52299 (1991 NJ1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar (675)
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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