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109375 (2001 QR162)
Classification: Main-belt Asteroid          SPK-ID: 2109375
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05696921572511108 5.7048e-08  
a 3.008565886960527 2.6743e-08 au
q 2.837170247923063 1.7766e-07 au
i 8.706189852869734 6.8284e-06 deg
node 307.4550639948648 3.8536e-05 deg
peri 152.6277820972942 7.3051e-05 deg
M 15.38113368606863 5.9698e-05 deg
tp 2458519.062663091777
(2019-Feb-04.56266309)
0.00031604 TDB
period 1906.065046005969
5.22
2.5415e-05
6.958e-08
d
yr
n .188870784212929 2.5183e-09 deg/d
Q 3.179961525997992 2.8267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      6416 days (17.57 yr)  
   first obs. used      2001-08-11  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:41:05  

Additional Information
 Earth MOID = 1.85729 au 
 Jupiter MOID = 1.92085 au 
 T_jup = 3.230 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456114.5 (2012-Jul-06.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05780635754639838 5.8076e-08  
q 2.832933036821887 1.8105e-07 au
tp 2456630.653052540029
(2013-Dec-04.15305254)
0.00030505 TDB
node 307.5570621018351 3.8613e-05 deg
peri 156.0805451230024 7.1317e-05 deg
i 8.698859729772291 6.8214e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      6416 days (17.57 yr)  
   first obs. used      2001-08-11  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55457  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:41:05  

Additional Information
 Jupiter MOID = 1.92085 au 
 T_jup = 3.230 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.372833015874409E-15 -1.041697486587468E-14 4.593987017644703E-12 -2.276457481624444E-14 9.75459476584761E-13 -1.473480378236493E-15
q -1.041697486587468E-14 3.277968341642616E-14 -1.436890009453602E-11 7.471683136272318E-14 -3.081896321820332E-12 5.974496180776456E-15
tp 4.593987017644703E-12 -1.436890009453602E-11 9.305629682818846E-8 -1.048305491122156E-10 1.831931367671352E-8 1.062346610089962E-11
node -2.276457481624444E-14 7.471683136272318E-14 -1.048305491122156E-10 1.490979224538261E-9 -1.494670105771611E-9 3.804543622835626E-11
peri 9.75459476584761E-13 -3.081896321820332E-12 1.831931367671352E-8 -1.494670105771611E-9 5.086069333764565E-9 -3.569579693336534E-11
i -1.473480378236493E-15 5.974496180776456E-15 1.062346610089962E-11 3.804543622835626E-11 -3.569579693336534E-11 4.653193924292159E-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 14.3   n/a MPO469118  
diameter diameter 5.038 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109375 (2001 QR162)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
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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