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18658 Rajdev (1998 FX31)
Classification: Main-belt Asteroid          SPK-ID: 2018658
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1869315563323329 3.3213e-08  
a 2.386062149393891 7.8511e-09 au
q 1.94003183830202 7.7205e-08 au
i 1.54093545632781 3.6304e-06 deg
node 226.2552575895447 0.00015473 deg
peri 224.5211046122758 0.00015515 deg
M 124.985163610076 1.1452e-05 deg
tp 2458733.112582745273
(2019-Sep-06.61258275)
4.2164e-05 TDB
period 1346.23554789776
3.69
6.6445e-06
1.819e-08
d
yr
n .2674123414451245 1.3198e-09 deg/d
Q 2.832092460485763 9.3188e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      15149 days (41.48 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:34:19  

Additional Information
 Earth MOID = .95669 au 
 Jupiter MOID = 2.36537 au 
 T_jup = 3.511 
[ 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 15.31   n/a E2021B10  

18658 Rajdev           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Priya Ashoke Rajdev (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Ossining High School, Ossining, New York, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040614/MPCPages.arcLast Updated: 2009-12-11

[ show close-approach data ]
Alternate Designations
 1998 FX31 = 1978 WU15 = 2000 SG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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