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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05154025821082142 8.9725e-08  
a 3.07018864507737 8.6536e-08 au
q 2.91195032955415 2.7879e-07 au
i 16.21328949014174 1.7249e-05 deg
node 322.2888667129672 2.5075e-05 deg
peri 113.4973141028489 0.00016828 deg
M 278.5818381200772 0.00017136 deg
tp 2459444.890546065141
(2021-Aug-18.39054607)
0.0009407 TDB
period 1964.925182410693
5.38
8.3074e-05
2.274e-07
d
yr
n .1832130827283354 7.746e-09 deg/d
Q 3.228426960600589 9.0996e-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 = 1.96765 au 
 Jupiter MOID = 1.91264 au 
 T_jup = 3.168 
[ 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 16.2   n/a MPO477316  

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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