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22422 Kenmount Hill (1995 YO5)
Classification: Main-belt Asteroid          SPK-ID: 2022422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495482233013054 4.2722e-08  
a 2.520985194127477 1.1022e-08 au
q 2.143976337376816 1.0746e-07 au
i 6.361945459782796 4.2263e-06 deg
node 78.14929934694027 3.0449e-05 deg
peri 179.8802076966733 3.251e-05 deg
M 198.0825060694793 1.2853e-05 deg
tp 2459658.074770594257
5.3728e-05 TDB
period 1462.021870938249
n .2462343465279155 1.6148e-09 deg/d
Q 2.897994050878137 1.267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      955  
   data-arc span      9074 days (24.84 yr)  
   first obs. used      1995-12-16  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52827  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:51:21  

Additional Information
 Earth MOID = 1.12884 au 
 Jupiter MOID = 2.15587 au 
 T_jup = 3.432 
[ 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 15.2   n/a MPO449118  
diameter diameter 4.120 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.090   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

22422 Kenmount Hill           Discovered 1995 Dec. 16 by Spacewatch at Kitt Peak.
Kenmount Hill (47 \circ 31 ' N, 52 \circ 47 ' W) is the location near St. John's, Newfoundland, where John Winthrop of Harvard College observed the transit of Venus in 1761. Name suggested by R. and P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-03-31Last Updated: 2018-04-05

Alternate Designations
 1995 YO5 = 1999 XU262 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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