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217650 (1998 QN29)
Classification: Main-belt Asteroid          SPK-ID: 2217650
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2295672266562437 1.5252e-07  
a 3.14662024812823 1.189e-07 AU
q 2.424259364425051 4.5868e-07 AU
i 14.88241763758729 2.0676e-05 deg
node 313.4365185555722 6.5544e-05 deg
peri 99.79991976542732 8.9652e-05 deg
M 279.7541047836548 5.6289e-05 deg
tp 2457454.949104445817
(2016-Mar-07.44910445)
0.00033173 JED
period 2038.754470361621
5.58
0.00011555
3.164e-07
d
yr
n .1765783988378677 1.0008e-08 deg/d
Q 3.868981131831409 1.4619e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      4851 days (13.28 yr)  
   first obs. used      1998-08-23  
   last obs. used      2011-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47072  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 21:43:47  

Additional Information
 Earth MOID = 1.48868 AU 
 T_jup = 3.117 
[ 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 15.4 mag n/a MPO214873  

217650 (1998 QN29)          Discovered 1998-Aug-23 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20090904/Numbers.arcLast Updated: 2009-09-08

[ show close-approach data ]
Alternate Designations
 1998 QN29 = 2004 RB220 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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