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21582 Arunvenkataraman (1998 SE58)
Classification: Main-belt Asteroid          SPK-ID: 2021582
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271615587471464 3.3841e-08  
a 2.65884748745638 9.816e-09 au
q 2.320744296480493 8.9365e-08 au
i 2.1864417058435 3.8825e-06 deg
node 357.573638922291 8.5186e-05 deg
peri 229.0027842199938 8.6271e-05 deg
M 217.4870674879624 1.5543e-05 deg
tp 2460023.388557698250
(2023-Mar-19.88855770)
7.0014e-05 TDB
period 1583.574745066084
4.34
8.7694e-06
2.401e-08
d
yr
n .2273337593452066 1.2589e-09 deg/d
Q 2.996950678432267 1.1064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2164  
   data-arc span      11257 days (30.82 yr)  
   first obs. used      1990-10-14  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:43:45  

Additional Information
 Earth MOID = 1.31243 au 
 Jupiter MOID = 1.98817 au 
 T_jup = 3.374 
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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 13.87   n/a E2021B10  
diameter diameter 4.664 km 0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21582 Arunvenkataraman           Discovered 1998 Sept. 17 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Arun Venkataraman (b. 1958), head of the computer department of the Arecibo Observatory, has made important contributions to radar observations of minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

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Alternate Designations
 1998 SE58 = 1990 TM12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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