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JPL Small-Body Database Browser
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136842 (1997 XN9)
Classification: Main-belt Asteroid          SPK-ID: 2136842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05231479715044386 4.2593e-08  
a 2.652887214535451 2.0658e-08 au
q 2.514101958044023 1.1342e-07 au
i 22.83659910557986 5.8407e-06 deg
node 80.45465086141354 1.7936e-05 deg
peri 23.49899853854911 0.00012066 deg
M 312.7073085393735 0.00011543 deg
tp 2458807.832859213131
(2019-Nov-20.33285921)
0.00050622 TDB
period 1578.252939544969
4.32
1.8435e-05
5.047e-08
d
yr
n .2281003196507859 2.6643e-09 deg/d
Q 2.791672471026879 2.1739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      9885 days (27.06 yr)  
   first obs. used      1992-09-04  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:05:14  

Additional Information
 Earth MOID = 1.53742 au 
 Jupiter MOID = 2.46873 au 
 T_jup = 3.276 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO366746  

136842 (1997 XN9)          Discovered 1997-Dec-06 by Tucker, R. A. at Goodricke-Pigott
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1997 XN9 = 2001 VW87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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