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22138 Laynrichards (2000 VD25)
Classification: Main-belt Asteroid          SPK-ID: 2022138
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 .1576695381516579 4.0271e-08  
a 3.172948371632629 1.9846e-08 au
q 2.672671067298257 1.288e-07 au
i 2.03032809784087 3.9211e-06 deg
node 72.08250081375917 0.00012038 deg
peri 294.8935530121314 0.00012095 deg
M 236.5881133459864 1.4123e-05 deg
tp 2459908.197116498187
(2022-Nov-24.69711650)
8.498e-05 TDB
period 2064.395649777239
5.65
1.9368e-05
5.303e-08
d
yr
n .1743851766200177 1.6361e-09 deg/d
Q 3.673225675967 2.2975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      10938 days (29.95 yr)  
   first obs. used      1991-03-09  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54945  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:01:31  

Additional Information
 Earth MOID = 1.67071 au 
 Jupiter MOID = 1.78894 au 
 T_jup = 3.181 
[ 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 14.47   n/a E2021B10  
diameter diameter 7.453 km 0.477 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22138 Laynrichards           Discovered 2000 Nov. 1 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Layne Richards mentored a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Kamehameha Schools, Keaau Campus, Keaau, Hawaii.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

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