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JPL Small-Body Database Browser
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46842 (1998 QK20)
Classification: Main-belt Asteroid          SPK-ID: 2046842
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 .05905856346136295 5.006e-08  
a 2.486052964240356 1.1398e-08 au
q 2.339230247483458 1.2237e-07 au
i 3.165599242803924 4.6112e-06 deg
node 236.7755514379839 7.8334e-05 deg
peri 124.338430940829 8.553e-05 deg
M 72.68883843240748 3.3267e-05 deg
tp 2458311.412561991791
(2018-Jul-11.91256199)
0.00013216 TDB
period 1431.739451714176
3.92
9.8463e-06
2.696e-08
d
yr
n .2514423972664743 1.7292e-09 deg/d
Q 2.632875680997255 1.2071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      9409 days (25.76 yr)  
   first obs. used      1993-04-16  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:39:30  

Additional Information
 Earth MOID = 1.33685 au 
 Jupiter MOID = 2.61395 au 
 T_jup = 3.471 
[ 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 15.3   n/a MPO309515  

46842 (1998 QK20)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QK20 = 2000 BS23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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