Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251948102490885 3.6402e-08  
a 2.404065649860359 8.0888e-09 au
q 2.103089106999739 8.6645e-08 au
i 2.020302703726595 3.9947e-06 deg
node 325.8027800652 8.6802e-05 deg
peri 202.4181998266097 8.7614e-05 deg
M 290.9791655420318 1.3082e-05 deg
tp 2459461.533121251459
(2021-Sep-04.03312125)
5.0015e-05 TDB
period 1361.500833603388
3.73
6.8715e-06
1.881e-08
d
yr
n .264414087097702 1.3345e-09 deg/d
Q 2.705042192720978 9.1015e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1596  
   data-arc span      15531 days (42.52 yr)  
   first obs. used      1978-09-02  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:03  

Additional Information
 Earth MOID = 1.10943 au 
 Jupiter MOID = 2.26646 au 
 T_jup = 3.512 
[ 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 14.9   n/a MPO492987  
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

[ show close-approach data ]
Alternate Designations
 1999 CU29 = 1978 RB7 = 2000 PL15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 23:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin