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283990 Randallrosenfeld (2004 SG2)
Classification: Main-belt Asteroid          SPK-ID: 2283990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038605524910376 4.3334e-08  
a 2.361416167154218 1.8679e-08 au
q 1.88001656265689 1.0214e-07 au
i 2.353278214963562 6.1282e-06 deg
node 77.65034646959339 0.00012656 deg
peri 266.1113733116122 0.00012801 deg
M 127.1762027543656 1.7955e-05 deg
tp 2458532.268552986132
(2019-Feb-17.76855299)
6.3676e-05 TDB
period 1325.431309272254
3.63
1.5727e-05
4.306e-08
d
yr
n .2716096997872058 3.2227e-09 deg/d
Q 2.842815771651545 2.2487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      5019 days (13.74 yr)  
   first obs. used      2004-09-16  
   last obs. used      2018-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 15:09:40  

Additional Information
 Earth MOID = .874108 au 
 Jupiter MOID = 2.56537 au 
 T_jup = 3.521 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO450180  

283990 Randallrosenfeld           Discovered 2004 Sept. 16 by T. Glinos and W. Levy at Jarnac Observatory.
Randall Rosenfeld (b. 1959) is the national archivist of the Royal Astronomical Society of Canada. He has created a first-class archive that provides an insight on the development of Canadian astronomy in the last century, and has brought old but valuable observing records to light.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

Alternate Designations
 2004 SG2 = 2008 YM111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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