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129202 (2005 NO21)
Classification: Main-belt Asteroid          SPK-ID: 2129202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2294947326376839 7.2422e-08  
a 2.292688794385124 8.8278e-09 au
q 1.766528792496296 1.6361e-07 au
i 2.944949604723319 4.7353e-06 deg
node 216.963514099052 0.0001096 deg
peri 132.9067772867344 0.00011025 deg
M 73.322996324283 9.3796e-06 deg
tp 2458742.241994552493
(2019-Sep-15.74199455)
3.2608e-05 TDB
period 1267.99076172385
3.47
7.3234e-06
2.005e-08
d
yr
n .2839137404365434 1.6398e-09 deg/d
Q 2.818848796273951 1.0854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      7885 days (21.59 yr)  
   first obs. used      1998-06-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:03:14  

Additional Information
 Earth MOID = .762221 au 
 Jupiter MOID = 2.62161 au 
 T_jup = 3.560 
[ 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 17.1   n/a MPO396102  

129202 (2005 NO21)          Discovered 2005-Jul-01 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2005 NO21 = 1998 MA39 = 2002 XO106 = 2004 EL111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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