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78221 Leonmow (2002 OP7)
Classification: Main-belt Asteroid          SPK-ID: 2078221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204179579400018 4.268e-08  
a 2.593152941185797 1.279e-08 au
q 2.021575465263514 1.1396e-07 au
i 11.34054907901746 3.2526e-06 deg
node 124.7896333822355 2.3278e-05 deg
peri 251.131118808735 2.5315e-05 deg
M 50.31967819833495 7.6545e-06 deg
tp 2458787.305508742022
(2019-Oct-30.80550874)
3.2703e-05 TDB
period 1525.248562806025
4.18
1.1285e-05
3.09e-08
d
yr
n .236027103239948 1.7463e-09 deg/d
Q 3.16473041710808 1.561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      15803 days (43.27 yr)  
   first obs. used      1977-07-20  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:41  

Additional Information
 Earth MOID = 1.05459 au 
 Jupiter MOID = 2.39205 au 
 T_jup = 3.357 
[ 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 15.4   n/a MPO502628  
diameter diameter 4.971 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78221 Leonmow           Discovered 2002 July 18 at Needville.
Leon Mow (1919-2002) was an Australian philanthropist with a great interest in astronomy. In 1990 he donated a dark-sky site to the Astronomical Society of Victoria (ASV), so that others could share in his passion. The ASV holds a number of public star parties there each year.
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 2018-09-25Last Updated: 2018-10-01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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