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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02533182108724578 4.3946e-08  
a 2.84562633319941 1.6082e-08 au
q 2.773541436045648 1.1947e-07 au
i 13.80868611554634 3.9141e-06 deg
node 125.54745752 2.0341e-05 deg
peri 187.5025990066215 0.00010542 deg
M 197.3051728843867 0.00010557 deg
tp 2460188.885423068341
(2023-Sep-01.38542307)
0.00051616 TDB
period 1753.336337497036
4.80
1.4864e-05
4.07e-08
d
yr
n .2053228421159147 1.7406e-09 deg/d
Q 2.917711230353173 1.649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      955  
   data-arc span      8885 days (24.33 yr)  
   first obs. used      1997-01-10  
   last obs. used      2021-05-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:35:55  

Additional Information
 Earth MOID = 1.75857 au 
 Jupiter MOID = 2.25069 au 
 T_jup = 3.264 
[ 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 14.65   n/a MPCxxxxx  

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