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23861 Benjaminsong (1998 RM58)
Classification: Main-belt Asteroid          SPK-ID: 2023861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01000708902951442 4.1107e-08  
a 2.86981946757691 1.4508e-08 au
q 2.841100928666235 1.1895e-07 au
i 1.66122444393615 4.3862e-06 deg
node 349.8487610054306 0.00012146 deg
peri 320.9590645709638 0.00021144 deg
M 214.2397220563887 0.00017435 deg
tp 2459719.480281696664
(2022-May-19.98028170)
0.00086057 TDB
period 1775.74374213893
4.86
1.3466e-05
3.687e-08
d
yr
n .2027319547618794 1.5374e-09 deg/d
Q 2.898538006487586 1.4654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1534  
   data-arc span      9788 days (26.80 yr)  
   first obs. used      1993-08-20  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:43:25  

Additional Information
 Earth MOID = 1.8264 au 
 Jupiter MOID = 2.10162 au 
 T_jup = 3.298 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO492997  
diameter diameter 3.742 km 1.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23861 Benjaminsong           Discovered 1998 Sept. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Benjamin Paul Song (b. 1993) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his biochem, medicine, health, and microbiology project. He attends the Arcola Intermediate School, Norristown, Pennsylvania.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

Alternate Designations
 1998 RM58 = 1993 QO7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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