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16646 Sparrman (1993 SJ5)
Classification: Main-belt Asteroid          SPK-ID: 2016646
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07975704133982039 1.7503e-08  
a 2.345092375227435 7.2122e-09 au
q 2.158054745710722 4.141e-08 au
i 6.552330003522293 7.2718e-07 deg
node 347.9294847076832 6.9751e-06 deg
peri 106.1833109005027 9.5962e-06 deg
M 116.312481015475 6.4693e-06 deg
tp 2458776.698804350896
(2019-Oct-20.19880435)
2.3551e-05 TDB
period 1311.711598804074
3.59
6.0511e-06
1.657e-08
d
yr
n .2744505730743118 1.2661e-09 deg/d
Q 2.532130004744146 7.7874e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2313  
   data-arc span      12330 days (33.76 yr)  
   first obs. used      1986-09-09  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:37:42  

Additional Information
 Earth MOID = 1.18536 au 
 Jupiter MOID = 2.5747 au 
 T_jup = 3.548 
[ 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 13.99   n/a E2021B10  
diameter diameter 3.778 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

16646 Sparrman           Discovered 1993 Sept. 19 by E. W. Elst at Caussols.
Anders Erikson Sparrman (1748-1820) studied medicine and botany and became one of the most outstanding pupils of Linnaeus. In 1772 he joined James Cook on his second voyage around the world, later writing about this in A voyage to the Cape of Good Hope, towards the Antarctic polar circle, and round the world (1789).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

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Alternate Designations
 1993 SJ5 = 1986 RS17 = 1986 RY10 = 1995 CK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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