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20437 Selohusa (1999 JH1)
Classification: Main-belt Asteroid          SPK-ID: 2020437
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302055197657709 5.7014e-08  
a 2.344315110614442 7.7815e-09 au
q 2.039072343142137 1.339e-07 au
i 6.108468068241296 6.0462e-06 deg
node 193.1104724026545 3.558e-05 deg
peri 175.1289903009264 3.8223e-05 deg
M 212.959910114222 1.3842e-05 deg
tp 2459735.995303104367
(2022-Jun-05.49530310)
5.0705e-05 TDB
period 1311.05951626746
3.59
6.5277e-06
1.787e-08
d
yr
n .2745870767369182 1.3672e-09 deg/d
Q 2.649557878086746 8.7947e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1221  
   data-arc span      10233 days (28.02 yr)  
   first obs. used      1992-05-06  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:13:02  

Additional Information
 Earth MOID = 1.03669 au 
 Jupiter MOID = 2.81608 au 
 T_jup = 3.543 
[ 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 15.12   n/a E2021B10  
diameter diameter 2.694 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.222   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20437 Selohusa           Discovered 1999 May 8 by the Catalina Sky Survey.
The South Euclid-Lyndhurst, Ohio, U.S.A. (SELOHUSA) region is in suburban Cleveland. Euclid bluestone quarries provided building stone for the development of northeast Ohio in the 19th-century. NASA astronaut Carl E. Walz and Charles F. Brush, inventor of arc-lamp street lighting, are from the region.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2019-05-18Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 1999 JH1 = 1993 TU35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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