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JPL Small-Body Database Browser
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14423 (1991 SM2)
Classification: Main-belt Asteroid          SPK-ID: 2014423
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06583678508604733 3.1079e-08  
a 2.272333562994223 6.7583e-09 au
q 2.12273042656356 7.002e-08 au
i 6.941090249510838 3.707e-06 deg
node 15.67857579735744 3.0105e-05 deg
peri 58.6017984155074 4.5724e-05 deg
M 80.0461348046224 3.29e-05 deg
tp 2458722.308140907262
(2019-Aug-26.80814091)
0.00011442 TDB
period 1251.141851106623
3.43
5.5816e-06
1.528e-08
d
yr
n .2877371576065362 1.2837e-09 deg/d
Q 2.421936699424885 7.2032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      10371 days (28.39 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:57:33  

Additional Information
 Earth MOID = 1.14582 au 
 Jupiter MOID = 2.72106 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457028.5 (2015-Jan-06.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06510439911482824 3.1009e-08  
q 2.12470449720894 6.9814e-08 au
tp 2457469.936822568816
(2016-Mar-22.43682257)
0.00011672 TDB
node 15.70412803855751 3.009e-05 deg
peri 58.30605304834138 4.6084e-05 deg
i 6.94329420593836 3.7077e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      10371 days (28.39 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:57:33  

Additional Information
 Jupiter MOID = 2.72106 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.61586376833098E-16 -2.156229497799858E-15 -2.761919399422113E-13 2.687419629268719E-16 -1.085539251172394E-13 -1.772481404895406E-15
q -2.156229497799858E-15 4.873950028318629E-15 5.441370262617997E-13 -1.832315095486997E-16 2.167581678717643E-13 4.015581384513833E-15
tp -2.761919399422113E-13 5.441370262617997E-13 1.362342280756464E-8 -7.877691746634113E-12 4.084175201380923E-9 -7.092361679375599E-12
node 2.687419629268719E-16 -1.832315095486997E-16 -7.877691746634113E-12 9.053827690600365E-10 -9.006340322829558E-10 -1.497600099777677E-11
peri -1.085539251172394E-13 2.167581678717643E-13 4.084175201380923E-9 -9.006340322829558E-10 2.123700198652841E-9 1.284312619292303E-11
i -1.772481404895406E-15 4.015581384513833E-15 -7.092361679375599E-12 -1.497600099777677E-11 1.284312619292303E-11 1.374683480681443E-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 14.6   n/a MPO452373  
diameter diameter 3.068 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.430   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14423 (1991 SM2)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SM2 = 1993 FU10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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