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JPL Small-Body Database Browser
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154765 (2004 PQ18)
Classification: Main-belt Asteroid          SPK-ID: 2154765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676648882230725 4.3859e-08  
a 2.772493337544539 2.0454e-08 au
q 2.307643552005921 1.195e-07 au
i 2.309245196627022 5.0034e-06 deg
node 183.8197863686885 0.00011039 deg
peri 126.4624406567098 0.00011126 deg
M 164.240558049429 1.3791e-05 deg
tp 2458231.224139191198
(2018-Apr-22.72413919)
6.3e-05 TDB
period 1686.181009004016
4.62
1.866e-05
5.109e-08
d
yr
n .2135002102844478 2.3627e-09 deg/d
Q 3.237343123083157 2.3884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      6571 days (17.99 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 20:05:36  

Additional Information
 Earth MOID = 1.29417 au 
 Jupiter MOID = 2.0329 au 
 T_jup = 3.315 
[ 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 16.2   n/a MPO266503  

154765 (2004 PQ18)          Discovered 2004-Aug-08 by LONEOS at Anderson Mesa
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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