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21651 Mission Valley (1999 OF1)
Classification: Main-belt Asteroid          SPK-ID: 2021651
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02533615411619595 4.3908e-08  
a 2.845595946184106 1.6204e-08 au
q 2.773499488739163 1.1953e-07 au
i 13.80880253498468 3.9287e-06 deg
node 125.5476801915487 2.1759e-05 deg
peri 187.2183654836135 0.00011015 deg
M 157.3603179740232 0.0001097 deg
tp 2458434.107932749448
(2018-Nov-11.60793275)
0.00053276 TDB
period 1753.308253073969
4.80
1.4976e-05
4.1e-08
d
yr
n .2053261309691743 1.7538e-09 deg/d
Q 2.917692403629049 1.6614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8778 days (24.03 yr)  
   first obs. used      1997-01-10  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57155  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:53:48  

Additional Information
 Earth MOID = 1.75705 au 
 Jupiter MOID = 2.25111 au 
 T_jup = 3.264 
[ 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 14.6   n/a MPO319355  

21651 Mission Valley           Discovered 1999 July 19 by G. Bell at Farpoint Observatory,
Mission Valley High School provides the land where Farpoint Observatory is sited. Situated at a dark site near Mission Creek, the high school has provided significant support to the research efforts of the North East Kansas Amateur Astronomer's League.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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