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22777 McAliley (1999 CU29)
Classification: Main-belt Asteroid          SPK-ID: 2022777
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1252672416890795 4.1191e-08  
a 2.403593234676137 9.0419e-09 au
q 2.102501740025725 9.6729e-08 au
i 2.02020815043534 4.2854e-06 deg
node 325.8073717219158 9.0445e-05 deg
peri 202.6167023141747 9.1264e-05 deg
M 132.0596238787456 1.314e-05 deg
tp 2458101.204741852791
(2017-Dec-13.70474185)
4.8742e-05 TDB
period 1361.099537115405
3.73
7.6803e-06
2.103e-08
d
yr
n .2644920449851539 1.4925e-09 deg/d
Q 2.704684729326549 1.0175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1410  
   data-arc span      15006 days (41.08 yr)  
   first obs. used      1978-09-02  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55263  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:34:22  

Additional Information
 Earth MOID = 1.10961 au 
 Jupiter MOID = 2.26904 au 
 T_jup = 3.513 
[ 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 14.8   n/a MPO435913  
diameter diameter 2.640 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.334   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22777 McAliley           Discovered 1999 Feb. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Collin Northcott McAliley (b. 1993) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his environmental sciences project. He attends the Cocoa Beach Junior/Senior High School, Cocoa Beach, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

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Alternate Designations
 1999 CU29 = 1978 RB7 = 2000 PL15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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