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120756 (1997 XN7)
Classification: Main-belt Asteroid          SPK-ID: 2120756
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555891532688478 5.5723e-08  
a 2.313086685630846 1.0656e-08 au
q 1.953195486776097 1.2978e-07 au
i 1.882974382097067 5.6928e-06 deg
node 207.1772507751202 0.00011966 deg
peri 160.0707713434737 0.00012035 deg
M 234.4658561247712 1.3083e-05 deg
tp 2459648.569780394012
(2022-Mar-10.06978039)		 4.7187e-05 TDB
period 1284.950181379888
3.52		 8.8796e-06
2.431e-08		 d
yr
n .2801665038977633 1.9361e-09 deg/d
Q 2.672977884485595 1.2314e-08 au
   Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      9207 days (25.21 yr)  
   first obs. used      1995-02-03  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58949  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:51  

Additional Information
 Earth MOID = .950498 au 
 Jupiter MOID = 2.79129 au 
 T_jup = 3.566 
[ 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 16.85   n/a E2021B55  

120756 (1997 XN7)          Discovered 1997-Dec-05 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1997 XN7 = 2003 LB2 = 2004 TQ53 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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