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22758 Lemp (1998 WP18)
Classification: Main-belt Asteroid          SPK-ID: 2022758
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291464803948545 3.6359e-08  
a 2.299503182281799 7.0227e-09 au
q 2.002530439633337 8.4467e-08 au
i 1.799784991067849 4.0434e-06 deg
node 335.4642259963194 0.00010627 deg
peri 163.9692267234797 0.00010729 deg
M 54.43701355520398 1.4653e-05 deg
tp 2459007.906671007857
(2020-Jun-07.40667101)
5.1648e-05 TDB
period 1273.648091787051
3.49
5.8346e-06
1.597e-08
d
yr
n .2826526434746078 1.2948e-09 deg/d
Q 2.596475924930261 7.9296e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1511  
   data-arc span      9624 days (26.35 yr)  
   first obs. used      1994-10-12  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55108  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:11:31  

Additional Information
 Earth MOID = 1.01567 au 
 Jupiter MOID = 2.41846 au 
 T_jup = 3.581 
[ 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 14.98   n/a E2021B10  
diameter diameter 2.253 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.418   0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22758 Lemp           Discovered 1998 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Nicholas Andrew Lemp (b. 1993) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his earth and space science project. He attends 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

[ show close-approach data ]
Alternate Designations
 1998 WP18 = 2000 JS37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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