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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2549243562046589 4.7953e-08  
a 2.360091630695941 6.8368e-09 au
q 1.758446791156774 1.1266e-07 au
i 5.299228266530629 4.6646e-06 deg
node .8248258802572571 3.3864e-05 deg
peri 337.1280654951635 3.4639e-05 deg
M 42.75857921125537 7.7094e-06 deg
tp 2459043.205879551158
(2020-Jul-12.70587955)		 2.8327e-05 TDB
period 1324.316298766947
3.63		 5.7545e-06
1.575e-08		 d
yr
n .2718383820656675 1.1812e-09 deg/d
Q 2.961736470235107 8.5797e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      8197 days (22.44 yr)  
   first obs. used      1998-08-10  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:58:31  

Additional Information
 Earth MOID = .749233 au 
 Jupiter MOID = 2.43792 au 
 T_jup = 3.502 
[ 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 15.47   n/a E2021B10  

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

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