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109594 (2001 QD281)
Classification: Main-belt Asteroid          SPK-ID: 2109594
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05169125855187087 5.0209e-08  
a 2.964931171233474 2.5858e-08 au
q 2.811670147472743 1.5347e-07 au
i 12.79758756843474 6.3935e-06 deg
node 75.56242250914551 2.2324e-05 deg
peri 291.1657574781044 6.104e-05 deg
M 221.1158832326097 5.8408e-05 deg
tp 2459719.899996453707
(2022-May-20.39999645)
0.00030518 TDB
period 1864.74886222658
5.11
2.4394e-05
6.679e-08
d
yr
n .193055487144873 2.5255e-09 deg/d
Q 3.118192194994205 2.7194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      6826 days (18.69 yr)  
   first obs. used      2001-08-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:06:38  

Additional Information
 Earth MOID = 1.8435 au 
 Jupiter MOID = 2.16674 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05102983089864094 5.0734e-08  
q 2.814195442577898 1.5505e-07 au
tp 2455998.455161159792
(2012-Mar-11.95516116)
0.0002964 TDB
node 75.58195293002615 2.2319e-05 deg
peri 292.9032853572048 6.1274e-05 deg
i 12.79802524060289 6.3937e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      6826 days (18.69 yr)  
   first obs. used      2001-08-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:06:38  

Additional Information
 Jupiter MOID = 2.16674 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.573953915002247E-15 -7.767969341705666E-15 4.390935948206217E-12 1.82230390751055E-14 8.481212017920533E-13 5.022681950682753E-16
q -7.767969341705666E-15 2.404097112893317E-14 -1.213202526023629E-11 -5.799906818532315E-14 -2.294256954331369E-12 1.332526058388812E-16
tp 4.390935948206217E-12 -1.213202526023629E-11 8.785143467102821E-8 4.749721365030725E-11 1.692752146955541E-8 1.974679619772774E-11
node 1.82230390751055E-14 -5.799906818532315E-14 4.749721365030725E-11 4.981484537184818E-10 -4.768271949706004E-10 -3.107504907037791E-11
peri 8.481212017920533E-13 -2.294256954331369E-12 1.692752146955541E-8 -4.768271949706004E-10 3.754562061594962E-9 3.43361334172834E-11
i 5.022681950682753E-16 1.332526058388812E-16 1.974679619772774E-11 -3.107504907037791E-11 3.43361334172834E-11 4.08790552467817E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO469121  

109594 (2001 QD281)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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