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JPL Small-Body Database Browser
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46885 (1998 RR18)
Classification: Main-belt Asteroid          SPK-ID: 2046885
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195115008454828 4.5314e-08  
a 2.594778671438688 1.2036e-08 au
q 2.088498409022521 1.2076e-07 au
i 3.104936760249478 3.8833e-06 deg
node 144.8264749899827 8.1925e-05 deg
peri 239.8741978041077 8.2641e-05 deg
M 305.4050450762898 9.0327e-06 deg
tp 2458832.025545991512
(2019-Dec-14.52554599)
3.8116e-05 TDB
period 1526.683128018232
4.18
1.0623e-05
2.908e-08
d
yr
n .2358053176806318 1.6407e-09 deg/d
Q 3.101058933854856 1.4385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      7745 days (21.20 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:17  

Additional Information
 Earth MOID = 1.09356 au 
 Jupiter MOID = 2.35223 au 
 T_jup = 3.388 
[ 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 15.5   n/a MPO449297  

46885 (1998 RR18)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RR18 = 2000 CL117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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