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JPL Small-Body Database Browser
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390731 (2003 MR1)
Classification: Main-belt Asteroid          SPK-ID: 2390731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3219803251446215 8.6154e-08  
a 3.166282303734113 6.5757e-08 au
q 2.146801698078142 2.7668e-07 au
i 21.46542872990316 1.7337e-05 deg
node 152.4402446290804 2.5852e-05 deg
peri 121.9525135652324 4.2291e-05 deg
M 287.8186289250412 3.9851e-05 deg
tp 2459013.115467183604
(2020-Jun-12.61546718)
0.00023879 TDB
period 2057.893414518828
5.63
6.4108e-05
1.755e-07
d
yr
n .174936173788269 5.4496e-09 deg/d
Q 4.185762909390085 8.693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      6235 days (17.07 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70307  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:36:55  

Additional Information
 Earth MOID = 1.207 au 
 Jupiter MOID = 1.58644 au 
 T_jup = 3.018 
[ 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 15.9   n/a MPO311142  

390731 (2003 MR1)          Discovered 2003-Jun-23 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

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