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215285 (2001 QX243)
Classification: Main-belt Asteroid          SPK-ID: 2215285
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .192088444268378 4.1423e-08  
a 2.684720389899276 1.3257e-08 au
q 2.169016626907931 1.1014e-07 au
i 11.46016445732761 5.0857e-06 deg
node 184.2917180708673 2.0793e-05 deg
peri 139.2616060851313 2.4645e-05 deg
M 118.922339052438 1.3564e-05 deg
tp 2458469.728053502777
(2018-Dec-17.22805350)
5.8666e-05 TDB
period 1606.745227696418
4.40
1.1901e-05
3.258e-08
d
yr
n .2240554344238695 1.6596e-09 deg/d
Q 3.200424152890621 1.5804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      10522 days (28.81 yr)  
   first obs. used      1991-04-09  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:21:23  

Additional Information
 Earth MOID = 1.17208 au 
 Jupiter MOID = 2.24548 au 
 T_jup = 3.320 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457215.5 (2015-Jul-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1943378650586225 4.1565e-08  
q 2.161052967848235 1.107e-07 au
tp 2456863.227888137465
(2014-Jul-24.72788814)
5.3241e-05 TDB
node 184.3377705696806 2.0773e-05 deg
peri 139.0781855423656 2.4511e-05 deg
i 11.46926224344175 5.0904e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      10522 days (28.81 yr)  
   first obs. used      1991-04-09  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:21:23  

Additional Information
 Jupiter MOID = 2.24548 au 
 T_jup = 3.320 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.727613502405302E-15 -4.580580513716325E-15 4.007212197511886E-13 -1.048124291342559E-14 5.489130014912227E-14 -4.76047039253225E-15
q -4.580580513716325E-15 1.225518305886324E-14 -9.295055514054289E-13 2.909370714319694E-14 -1.113794660791288E-13 1.285605002049911E-14
tp 4.007212197511886E-13 -9.295055514054289E-13 2.834619140538632E-9 2.144173345653544E-12 7.055660594224958E-10 -6.186136320721612E-12
node -1.048124291342559E-14 2.909370714319694E-14 2.144173345653544E-12 4.315164985912255E-10 -4.214230399123173E-10 9.663292425662808E-12
peri 5.489130014912227E-14 -1.113794660791288E-13 7.055660594224958E-10 -4.214230399123173E-10 6.007997489987379E-10 -1.085484371369916E-11
i -4.76047039253225E-15 1.285605002049911E-14 -6.186136320721612E-12 9.663292425662808E-12 -1.085484371369916E-11 2.59120231108647E-11

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 15.8   n/a MPO454546  
diameter diameter 4.041 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215285 (2001 QX243)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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