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JPL Small-Body Database Browser
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66995 (1999 XN109)
Classification: Main-belt Asteroid          SPK-ID: 2066995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06751563317933244 3.9229e-08  
a 2.864861067729289 1.7355e-08 au
q 2.671438158770728 1.1501e-07 au
i 3.786166304376764 5.5305e-06 deg
node 169.9160475071892 6.8327e-05 deg
peri 303.2614629516243 8.2373e-05 deg
M 29.56491661357454 4.4061e-05 deg
tp 2458855.045241736076
(2020-Jan-06.54524174)
0.0002168 TDB
period 1771.14360440882
4.85
1.6094e-05
4.406e-08
d
yr
n .2032585043380276 1.8469e-09 deg/d
Q 3.058283976687851 1.8526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      8258 days (22.61 yr)  
   first obs. used      1997-06-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:07:24  

Additional Information
 Earth MOID = 1.69021 au 
 Jupiter MOID = 2.00383 au 
 T_jup = 3.294 
[ 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 15.1   n/a MPO412600  
diameter diameter 2.932 km 0.912 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.142   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66995 (1999 XN109)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XN109 = 1997 MY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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