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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967703333655349 4.5202e-08  
a 2.464689501779096 1.0597e-08 au
q 1.979711726871489 1.1217e-07 au
i 2.773251204022823 4.4228e-06 deg
node 49.64847738501606 8.4741e-05 deg
peri 278.9672486597271 8.5938e-05 deg
M 330.5174723561423 1.9629e-05 deg
tp 2459512.245459498083
(2021-Oct-24.74545950)
7.7582e-05 TDB
period 1413.32405154179
3.87
9.1148e-06
2.495e-08
d
yr
n .254718653947251 1.6427e-09 deg/d
Q 2.949667276686702 1.2682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8362 days (22.89 yr)  
   first obs. used      1998-07-31  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:48:44  

Additional Information
 Earth MOID = .970117 au 
 Jupiter MOID = 2.40213 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456196.5 (2012-Sep-26.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974121256926704 4.5325e-08  
q 1.977682896633508 1.1247e-07 au
tp 2456682.660242305384
(2014-Jan-25.16024231)
6.4867e-05 TDB
node 49.75749392152353 8.481e-05 deg
peri 278.3644099332616 8.5983e-05 deg
i 2.773220063971778 4.4188e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8362 days (22.89 yr)  
   first obs. used      1998-07-31  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:48:44  

Additional Information
 Jupiter MOID = 2.40213 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.054330954303802E-15 -5.082233449313913E-15 1.122589891004868E-12 -9.225929720901504E-15 2.043983835274872E-13 8.194703315055234E-16
q -5.082233449313913E-15 1.265016619850718E-14 -2.44403991863039E-12 2.301070446435673E-14 -4.389681739389716E-13 -1.964137747173694E-15
tp 1.122589891004868E-12 -2.44403991863039E-12 4.207679112874977E-9 -1.35237099626122E-11 9.31461457942469E-10 3.761473069869534E-13
node -9.225929720901504E-15 2.301070446435673E-14 -1.35237099626122E-11 7.19268866058633E-9 -7.18675918006542E-9 -7.143430757097794E-11
peri 2.043983835274872E-13 -4.389681739389716E-13 9.31461457942469E-10 -7.18675918006542E-9 7.393092598676E-9 7.140407653168052E-11
i 8.194703315055234E-16 -1.964137747173694E-15 3.761473069869534E-13 -7.143430757097794E-11 7.140407653168052E-11 1.952592824426346E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.36   n/a MPO614063  

46851 (1998 QN39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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