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46897 (1998 RP55)
Classification: Main-belt Asteroid          SPK-ID: 2046897
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005765683268188549 4.4413e-08  
a 2.556850904038846 1.3099e-08 au
q 2.542108911562176 1.166e-07 au
i 4.694705001118998 4.7353e-06 deg
node 296.4118540603164 5.0522e-05 deg
peri 10.93792704514215 0.0003638 deg
M 67.76406597369858 0.00035962 deg
tp 2458319.404761726441
(2018-Jul-19.90476173)
0.0014917 TDB
period 1493.332555011649
4.09
1.1476e-05
3.142e-08
d
yr
n .2410715542173335 1.8525e-09 deg/d
Q 2.571592896515515 1.3174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      7732 days (21.17 yr)  
   first obs. used      1998-08-28  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59275  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:22  

Additional Information
 Earth MOID = 1.52574 au 
 Jupiter MOID = 2.43257 au 
 T_jup = 3.432 
[ 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 15.0   n/a MPO359052  
diameter diameter 3.080 km 0.644 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.245   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46897 (1998 RP55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RP55 = 2000 AL54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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