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JPL Small-Body Database Browser
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487400 (2014 QR338)
Classification: Main-belt Asteroid          SPK-ID: 2487400
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05080173885181889 8.7978e-08  
a 3.073636209717244 8.8161e-08 au
q 2.917490145665695 2.7459e-07 au
i 16.20013520052385 1.7238e-05 deg
node 322.3090118874883 2.5096e-05 deg
peri 112.4695010066056 0.0001716 deg
M 206.3502140528524 0.00017384 deg
tp 2459440.552795638247
(2021-Aug-14.05279564)
0.00096025 TDB
period 1968.235780906294
5.39
8.4682e-05
2.318e-07
d
yr
n .182904915911159 7.8694e-09 deg/d
Q 3.229782273768794 9.264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      3580 days (9.80 yr)  
   first obs. used      2009-09-16  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57542  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:12  

Additional Information
 Earth MOID = 1.97414 au 
 Jupiter MOID = 1.91391 au 
 T_jup = 3.167 
[ 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 16.5   n/a MPO409258  

487400 (2014 QR338)          Discovered 2009-Sep-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

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