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408832 (2001 QJ298)
Classification: TransNeptunian Object          SPK-ID: 2408832
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03618176071327617 0.00016808  
a 44.31905889378764 0.022972 au
q 42.71551730985502 0.028132 au
i 2.151732896544123 0.00050043 deg
node 162.7113227640863 0.0027621 deg
peri 288.6255696537879 0.59663 deg
M 262.0216082429195 0.59246 deg
tp 2488330.497580401421
(2100-Sep-18.99758040)
154.88 TDB
period 107766.6099595013
295.05
83.789
0.2294
d
yr
n .003340552330033282 2.5973e-06 deg/d
Q 45.92260047772026 0.023803 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      5196 days (14.23 yr)  
   first obs. used      2000-07-31  
   last obs. used      2014-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .29238  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 17:46:37  

Additional Information
 Earth MOID = 41.7328 au 
 Jupiter MOID = 37.5461 au 
 T_jup = 5.946 
[ hide covariance matrix ]
Orbital Elements at Epoch 2453948.5 (2006-Aug-01.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03850233679645128 0.00021011  
q 42.35914183812156 0.0302 au
tp 2490851.804494089694
(2107-Aug-15.30449409)
131 TDB
node 162.7000828446588 0.0027539 deg
peri 298.0627556424411 0.52514 deg
i 2.154910161190218 0.00050228 deg
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      5196 days (14.23 yr)  
   first obs. used      2000-07-31  
   last obs. used      2014-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .29238  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 17:46:37  

Additional Information
 Jupiter MOID = 37.5461 au 
 T_jup = 5.946 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.41480934343294E-8 -5.944146351252467E-6 .01976283702624426 9.869150420395943E-9 8.441110715168985E-5 -1.534373981214444E-9
q -5.944146351252467E-6 .0009120609367759438 -3.624408822311926 -1.556068146126852E-6 -.01493896736630641 2.451785808905949E-7
tp .01976283702624426 -3.624408822311926 17161.71377576696 .006373159944840982 68.6241026566335 -.001018924569605902
node 9.869150420395943E-9 -1.556068146126852E-6 .006373159944840982 7.584097475845447E-6 1.854814962621176E-5 -1.153677165600007E-6
peri 8.441110715168985E-5 -.01493896736630641 68.6241026566335 1.854814962621176E-5 .2757706627632082 -3.013272857785323E-6
i -1.534373981214444E-9 2.451785808905949E-7 -.001018924569605902 -1.153677165600007E-6 -3.013272857785323E-6 2.522863493500012E-7

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.2   n/a MPO307221  

408832 (2001 QJ298)          Discovered 2001-Aug-21 by Buie, M. W. at Cerro Tololo
Reference: Last Updated: 2014-10-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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