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JPL Small-Body Database Browser
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23850 Ramaswami (1998 RJ34)
Classification: Main-belt Asteroid          SPK-ID: 2023850
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976084176306669 5.583e-08  
a 2.556529166412618 1.2791e-08 au
q 2.051337483211173 1.4342e-07 au
i 8.259240270792017 5.1512e-06 deg
node 17.00679411061931 4.1551e-05 deg
peri 279.0335605752608 4.3454e-05 deg
M 148.4940000941351 1.7344e-05 deg
tp 2458384.641471327471
(2018-Sep-23.14147133)
6.9045e-05 TDB
period 1493.050696873692
4.09
1.1205e-05
3.068e-08
d
yr
n .2411170637097629 1.8096e-09 deg/d
Q 3.061720849614063 1.5319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      9756 days (26.71 yr)  
   first obs. used      1993-03-19  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48238  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:07:39  

Additional Information
 Earth MOID = 1.05559 au 
 Jupiter MOID = 2.21882 au 
 T_jup = 3.395 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456559.5 (2013-Sep-24.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985418801229299 5.5665e-08  
q 2.047814893625143 1.4304e-07 au
tp 2456893.483037886692
(2014-Aug-23.98303789)
6.2782e-05 TDB
node 17.03601231713674 4.1519e-05 deg
peri 279.2772887711374 4.3414e-05 deg
i 8.265289089315409 5.1542e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1026  
   data-arc span      9756 days (26.71 yr)  
   first obs. used      1993-03-19  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48238  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:07:39  

Additional Information
 Jupiter MOID = 2.21882 au 
 T_jup = 3.395 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.09859571310782E-15 -7.941971737396528E-15 1.730235495713048E-13 -2.200543260209586E-15 -4.208674520922333E-15 -5.741606621766525E-16
q -7.941971737396528E-15 2.045947766538859E-14 -1.407057773029337E-13 5.801828859314149E-15 6.694273571246023E-14 2.049253686792126E-15
tp 1.730235495713048E-13 -1.407057773029337E-13 3.941543801070246E-9 1.897170823718858E-11 8.399831504513631E-10 7.944261317909075E-13
node -2.200543260209586E-15 5.801828859314149E-15 1.897170823718858E-11 1.723837581434705E-9 -1.701639665643216E-9 -1.332274393499273E-11
peri -4.208674520922333E-15 6.694273571246023E-14 8.399831504513631E-10 -1.701639665643216E-9 1.884760876697742E-9 1.332327788011687E-11
i -5.741606621766525E-16 2.049253686792126E-15 7.944261317909075E-13 -1.332274393499273E-11 1.332327788011687E-11 2.656531703402524E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO502339  
diameter diameter 3.819 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23850 Ramaswami           Discovered 1998 Sept. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Keshav Ramaswami (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 Mission Valley Middle School, Prairie Village, Kansas.
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 RJ34 = 1993 FF61 = 1999 XB201 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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