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48931 (1998 PM1)
Classification: Main-belt Asteroid          SPK-ID: 2048931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2550785502670369 4.8431e-08  
a 2.360498232537248 7.0998e-09 au
q 1.758385765473744 1.1393e-07 au
i 5.298986976884255 5.019e-06 deg
node .8265085189149578 3.5299e-05 deg
peri 337.1126804421168 3.6075e-05 deg
M 348.4008227218171 7.8873e-06 deg
tp 2459043.180414801079
(2020-Jul-12.68041480)
2.904e-05 TDB
period 1324.658547747915
3.63
5.9764e-06
1.636e-08
d
yr
n .2717681478083879 1.2261e-09 deg/d
Q 2.962610699600753 8.9109e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1130  
   data-arc span      8111 days (22.21 yr)  
   first obs. used      1998-08-10  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:08  

Additional Information
 Earth MOID = .751027 au 
 Jupiter MOID = 2.43659 au 
 T_jup = 3.501 
[ 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 15.3   n/a MPO280003  

48931 (1998 PM1)          Discovered 1998-Aug-10 by Broughton, J. at Reedy Creek
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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