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46841 (1998 QE19)
Classification: Main-belt Asteroid          SPK-ID: 2046841
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09555515069548423 3.8147e-08  
a 2.554450160726039 1.4218e-08 au
q 2.310359290673758 9.7692e-08 au
i 11.08736567497241 3.6896e-06 deg
node 136.4413290897454 2.2113e-05 deg
peri 144.0856430868949 4.2207e-05 deg
M 208.4363205785782 4.1853e-05 deg
tp 2459828.322992250306
(2022-Sep-05.82299225)
0.00017717 TDB
period 1491.22981226705
4.08
1.245e-05
3.409e-08
d
yr
n .241411482682678 2.0156e-09 deg/d
Q 2.798541030778319 1.5577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      8304 days (22.74 yr)  
   first obs. used      1998-06-24  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:40:25  

Additional Information
 Earth MOID = 1.30141 au 
 Jupiter MOID = 2.38248 au 
 T_jup = 3.406 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.44   n/a MPCxxxxx  
diameter diameter 2.410 km 0.425 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46841 (1998 QE19)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QE19 = 2002 NG20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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