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109458 (2001 QG211)
Classification: Main-belt Asteroid          SPK-ID: 2109458
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2143603780897673 7.0407e-08  
a 2.432269109424805 1.1574e-08 au
q 1.910886983512442 1.7403e-07 au
i 8.376352928632434 8.9021e-06 deg
node 335.8652658931337 2.6546e-05 deg
peri 330.3476334541978 2.98e-05 deg
M 5.752551153436025 1.0898e-05 deg
tp 2458978.360191933611
(2020-May-08.86019193)
4.1949e-05 TDB
period 1385.529774757286
3.79
9.8893e-06
2.708e-08
d
yr
n .2598284111671754 1.8545e-09 deg/d
Q 2.953651235337167 1.4055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      7478 days (20.47 yr)  
   first obs. used      2000-02-12  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:34:08  

Additional Information
 Earth MOID = .901425 au 
 Jupiter MOID = 2.33563 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457169.5 (2015-May-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2135526282092452 7.0393e-08  
q 1.913265643558597 1.7375e-07 au
tp 2457593.559346491684
(2016-Jul-24.05934649)
4.3707e-05 TDB
node 335.9073775079626 2.6551e-05 deg
peri 330.4076417227171 2.9817e-05 deg
i 8.374726988321248 8.8999e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      7478 days (20.47 yr)  
   first obs. used      2000-02-12  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:34:08  

Additional Information
 Jupiter MOID = 2.33563 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.955194937540992E-15 -1.221512179466573E-14 1.734696732855557E-12 -2.147537013078904E-14 5.383135189506329E-13 -2.474711931043046E-14
q -1.221512179466573E-14 3.018765689360004E-14 -4.323856110232954E-12 5.083029951196604E-14 -1.347898081307163E-12 6.103067520807973E-14
tp 1.734696732855557E-12 -4.323856110232954E-12 1.910344434355744E-9 -9.755785514268991E-12 5.993478965782056E-10 -1.098234044056332E-11
node -2.147537013078904E-14 5.083029951196604E-14 -9.755785514268991E-12 7.049541648708501E-10 -6.990175112953085E-10 -4.343214372621735E-11
peri 5.383135189506329E-13 -1.347898081307163E-12 5.993478965782056E-10 -6.990175112953085E-10 8.890583600845623E-10 3.961004493022109E-11
i -2.474711931043046E-14 6.103067520807973E-14 -1.098234044056332E-11 -4.343214372621735E-11 3.961004493022109E-11 7.920809887377146E-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 16.3   n/a MPO469119  
diameter diameter 2.723 km 0.658 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109458 (2001 QG211)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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