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JPL Small-Body Database Browser
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154783 (2004 PA44)
Classification: Centaur          SPK-ID: 2154783
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7602283090993746 5.4095e-06  
a 14.21764648812309 0.00032068 au
q 3.408989139084613 1.6952e-06 au
i 3.28496751347222 3.2877e-05 deg
node 212.6654913054208 0.00049921 deg
peri 72.72550174096492 0.00050277 deg
M 108.4477335044904 0.0036742 deg
tp 2453101.777394419397
(2004-Apr-06.27739442)
0.00046897 TDB
period 19581.23115520058
53.61
0.66249
0.001814
d
yr
n .01838495226100161 6.2202e-07 deg/d
Q 25.02630383716158 0.00056447 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      1303 days (3.57 yr)  
   first obs. used      2002-04-03  
   last obs. used      2005-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .43755  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 08:36:54  

Additional Information
 Earth MOID = 2.39472 au 
 Jupiter MOID = .173383 au 
 T_jup = 2.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2453440.5 (2005-Mar-11.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7579315772106582 5.4296e-06  
q 3.430445506695225 1.7104e-06 au
tp 2453090.645988834259
(2004-Mar-26.14598883)
0.00052255 TDB
node 212.5716132767987 0.00049731 deg
peri 72.76216503883521 0.00050112 deg
i 3.283596620689538 3.2971e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      1303 days (3.57 yr)  
   first obs. used      2002-04-03  
   last obs. used      2005-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .43755  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 08:36:54  

Additional Information
 Jupiter MOID = .173383 au 
 T_jup = 2.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.948025416751361E-11 -9.660469588706984E-14 1.933011236876027E-9 3.676118570644943E-11 1.646088592026951E-10 6.877510014631818E-13
q -9.660469588706984E-14 2.925519673441141E-12 1.908753633210938E-10 -5.566089704556934E-12 6.801142737788152E-11 7.343661291117042E-13
tp 1.933011236876027E-9 1.908753633210938E-10 2.730610794994413E-7 2.177269559094215E-9 3.102048186327165E-8 -4.344461954812035E-12
node 3.676118570644943E-11 -5.566089704556934E-12 2.177269559094215E-9 2.473145221068209E-7 -2.467586628860986E-7 -9.200375444894121E-9
peri 1.646088592026951E-10 6.801142737788152E-11 3.102048186327165E-8 -2.467586628860986E-7 2.511223369700095E-7 9.194159357149064E-9
i 6.877510014631818E-13 7.343661291117042E-13 -4.344461954812035E-12 -9.200375444894121E-9 9.194159357149064E-9 1.087078854712187E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO217461  

154783 (2004 PA44)          Discovered 2004-Aug-07 by NEAT at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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