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139211 (2001 GN2)
Classification: Amor [NEO, PHA]          SPK-ID: 2139211
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 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4523137903093938 8.2092e-08  
a 1.859220872062494 1.6566e-08 au
q 1.01826963239757 1.5696e-07 au
i 26.07022646011764 1.4253e-05 deg
node 173.5606137477299 1.8778e-05 deg
peri 3.384237637086651 2.7935e-05 deg
M 204.9619375600828 4.2267e-05 deg
tp 2459399.277583832585
(2021-Jul-03.77758383)
0.00011399 TDB
period 925.965713970175
2.54
1.2376e-05
3.388e-08
d
yr
n .3887832935589616 5.1963e-09 deg/d
Q 2.700172111727417 2.4059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      7711 days (21.11 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49246  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-18 08:10:21  

Additional Information
 Earth MOID = .024336 au 
 Jupiter MOID = 2.26311 au 
 T_jup = 3.756 
[ 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 18.0   n/a MPO159638  

139211 (2001 GN2)          Discovered 2001-Apr-12 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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