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308359 (2005 QM138)
Classification: Main-belt Asteroid          SPK-ID: 2308359
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029347020783794 5.4433e-08  
a 3.067084393559321 3.5583e-08 au
q 2.444666535903114 1.7081e-07 au
i 16.97248218687097 1.0874e-05 deg
node 2.542387683578111 1.975e-05 deg
peri 105.7845986794003 4.1795e-05 deg
M 181.6606403048856 2.9632e-05 deg
tp 2459972.422683947244
(2023-Jan-27.92268395)
0.00016035 TDB
period 1961.945847619825
5.37
3.4143e-05
9.348e-08
d
yr
n .183491303002446 3.1932e-09 deg/d
Q 3.689502251215529 4.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      5984 days (16.38 yr)  
   first obs. used      2002-01-23  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54158  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:34:11  

Additional Information
 Earth MOID = 1.52355 au 
 Jupiter MOID = 1.65211 au 
 T_jup = 3.135 
[ 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 15.5   n/a MPO391606  

308359 (2005 QM138)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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