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109540 (2001 QN252)
Classification: Main-belt Asteroid          SPK-ID: 2109540
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571317688350179 4.8522e-08  
a 3.077239876409923 2.51e-08 au
q 2.59370773149998 1.4604e-07 au
i 2.712188382665503 5.358e-06 deg
node 60.62471881265709 0.0001059 deg
peri 292.4381279731614 0.00010718 deg
M 151.8932304647069 1.9301e-05 deg
tp 2458168.589947299804
(2018-Feb-19.08994730)
0.00010106 TDB
period 1971.698264997122
5.40
2.4123e-05
6.605e-08
d
yr
n .1825837180013573 2.2339e-09 deg/d
Q 3.560772021319867 2.9043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:11:25  

Additional Information
 Earth MOID = 1.5901 au 
 Jupiter MOID = 1.87778 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457014.5 (2014-Dec-23.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535777901213699 4.8248e-08  
q 2.610096151577296 1.4484e-07 au
tp 2456192.379541944481
(2012-Sep-21.87954194)
9.7027e-05 TDB
node 60.74719753197591 0.0001059 deg
peri 292.1454900508916 0.00010726 deg
i 2.710662507447391 5.3502e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7231 days (19.80 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:11:25  

Additional Information
 Jupiter MOID = 1.87778 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.327853409467338E-15 -6.916222078156099E-15 1.279188098173265E-12 3.771094373652977E-15 2.189562745068137E-13 6.233752658426758E-16
q -6.916222078156099E-15 2.097973377932232E-14 -3.610424803777933E-12 -1.191111543180446E-14 -5.882817746322877E-13 -1.782982323916217E-15
tp 1.279188098173265E-12 -3.610424803777933E-12 9.414309485376565E-9 3.819249350352295E-12 1.679421245634476E-9 -3.942655323460614E-13
node 3.771094373652977E-15 -1.191111543180446E-14 3.819249350352295E-12 1.121573464372024E-8 -1.120269294806497E-8 -8.460590469211708E-11
peri 2.189562745068137E-13 -5.882817746322877E-13 1.679421245634476E-9 -1.120269294806497E-8 1.150540207560502E-8 8.451558171286738E-11
i 6.233752658426758E-16 -1.782982323916217E-15 -3.942655323460614E-13 -8.460590469211708E-11 8.451558171286738E-11 2.86249391716164E-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 15.3   n/a MPO417562  
diameter diameter 4.656 km 0.804 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109540 (2001 QN252)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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