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22860 Francylemp (1999 RA149)
Classification: Main-belt Asteroid          SPK-ID: 2022860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955193203309241 4.0845e-08  
a 2.401752608425145 7.5895e-09 au
q 1.932163570822836 9.7052e-08 au
i .4872823778284092 3.1119e-06 deg
node 265.3676144002426 0.00049164 deg
peri 86.60208900000274 0.0004917 deg
M 196.3499801890918 8.9485e-06 deg
tp 2459618.522654240401
(2022-Feb-08.02265424)
3.5275e-05 TDB
period 1359.536380036016
3.72
6.4441e-06
1.764e-08
d
yr
n .2647961505748475 1.2551e-09 deg/d
Q 2.871341646027453 9.0733e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1602  
   data-arc span      16089 days (44.05 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53896  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:48:56  

Additional Information
 Earth MOID = .926683 au 
 Jupiter MOID = 2.56261 au 
 T_jup = 3.499 
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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 15.0   n/a MPO319370  
diameter diameter 2.252 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22860 Francylemp           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Francy M. Lemp mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Lemp Home School, Waterford, Michigan.
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 RA149 = 1976 JJ5 
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