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4852 Pamjones (1977 JD)
Classification: Main-belt Asteroid          SPK-ID: 2004852
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1030767861524952 3.7269e-08  
a 2.3038741758983 8.2696e-09 au
q 2.066398230146975 8.8691e-08 au
i 6.776378366029367 4.3376e-06 deg
node 43.08935228029004 3.1374e-05 deg
peri 232.3201510887295 3.8806e-05 deg
M 309.5237220862072 2.2652e-05 deg
tp 2458779.590019651211
(2019-Oct-23.09001965)
8.0345e-05 TDB
period 1277.281323804157
3.50
6.8771e-06
1.883e-08
d
yr
n .2818486368592656 1.5175e-09 deg/d
Q 2.541350121649625 9.122e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1987  
   data-arc span      23617 days (64.66 yr)  
   first obs. used      1954-12-30  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:47:53  

Additional Information
 Earth MOID = 1.05795 au 
 Jupiter MOID = 2.54296 au 
 T_jup = 3.573 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO337293  
rotation period rot_per 9.715 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

4852 Pamjones (1977 JD)          Discovered 1977-May-15 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 JD = 1978 TU2 = 1980 BE1 = 1980 DZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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