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46851 (1998 QN39)
Classification: Main-belt Asteroid          SPK-ID: 2046851
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961109229646712 5.5931e-08  
a 2.465061348649781 1.544e-08 au
q 1.981635892401535 1.335e-07 au
i 2.773221662863958 4.9728e-06 deg
node 49.66507094636219 8.7574e-05 deg
peri 278.9591584305804 8.9685e-05 deg
M 127.7172141322668 2.7491e-05 deg
tp 2458098.981496262446
(2017-Dec-11.48149626)
0.00010412 TDB
period 1413.643905186824
3.87
1.3281e-05
3.636e-08
d
yr
n .254661020840622 2.3926e-09 deg/d
Q 2.948486804898026 1.8468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      7473 days (20.46 yr)  
   first obs. used      1998-07-31  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59055  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:39:34  

Additional Information
 Earth MOID = .971883 au 
 Jupiter MOID = 2.40064 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455631.5 (2011-Mar-11.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197899365275963 5.6029e-08  
q 1.975819332769846 1.3395e-07 au
tp 2455270.420302704636
(2010-Mar-14.92030270)
8.2839e-05 TDB
node 49.75273981751862 8.7685e-05 deg
peri 278.4089587558065 8.9739e-05 deg
i 2.773311728412236 4.9688e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      875  
   data-arc span      7473 days (20.46 yr)  
   first obs. used      1998-07-31  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59055  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:39:34  

Additional Information
 Jupiter MOID = 2.40064 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.139263088780123E-15 -7.47782208200261E-15 2.841708920989145E-12 -2.348224197327271E-14 5.64441817929958E-13 9.184255994617602E-16
q -7.47782208200261E-15 1.794338390001355E-14 -6.30274209592311E-12 5.518734749618206E-14 -1.228630953266246E-12 -2.158506285146682E-15
tp 2.841708920989145E-12 -6.30274209592311E-12 6.862382113341438E-9 -3.591009138739505E-11 1.590692176130215E-9 1.167187218616766E-13
node -2.348224197327271E-14 5.518734749618206E-14 -3.591009138739505E-11 7.688679636747455E-9 -7.686762052993225E-9 -6.20603806168743E-11
peri 5.64441817929958E-13 -1.228630953266246E-12 1.590692176130215E-9 -7.686762052993225E-9 8.053128814494819E-9 6.197550887008807E-11
i 9.184255994617602E-16 -2.158506285146682E-15 1.167187218616766E-13 -6.20603806168743E-11 6.197550887008807E-11 2.468863199262647E-11

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 15.4   n/a MPO266176  

46851 (1998 QN39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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