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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0593389165434321 4.9558e-08  
a 2.485467758542037 1.069e-08 au
q 2.33798279464652 1.205e-07 au
i 3.165497910557433 3.7672e-06 deg
node 236.7692246356117 7.7101e-05 deg
peri 124.2249947950468 8.2277e-05 deg
M 173.3856986236871 2.9331e-05 deg
tp 2458311.179174279197
(2018-Jul-11.67917428)
0.00011525 TDB
period 1431.233943914146
3.92
9.2339e-06
2.528e-08
d
yr
n .2515312060133721 1.6228e-09 deg/d
Q 2.632952722437554 1.1325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1158  
   data-arc span      9874 days (27.03 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50454  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:35:34  

Additional Information
 Earth MOID = 1.33646 au 
 Jupiter MOID = 2.61431 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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