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JPL Small-Body Database Browser
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46890 (1998 RK48)
Classification: Main-belt Asteroid          SPK-ID: 2046890
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1265464702698669 4.5794e-08  
a 2.608479569311799 1.2561e-08 au
q 2.278385687044329 1.1758e-07 au
i 3.930951690041356 4.9193e-06 deg
node 212.3228333887115 5.4253e-05 deg
peri 330.1209256208562 5.6535e-05 deg
M 133.2840300003555 1.906e-05 deg
tp 2458030.788218020355
(2017-Oct-04.28821802)
7.9542e-05 TDB
period 1538.79081771556
4.21
1.1115e-05
3.043e-08
d
yr
n .2339499273425901 1.6898e-09 deg/d
Q 2.93857345157927 1.415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58269  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:18  

Additional Information
 Earth MOID = 1.28206 au 
 Jupiter MOID = 2.02955 au 
 T_jup = 3.396 
[ 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 14.8   n/a MPO452811  
diameter diameter 2.834 km 0.570 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.349   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46890 (1998 RK48)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RK48 = 2000 AC81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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