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46550 (1989 SZ13)
Classification: Main-belt Asteroid          SPK-ID: 2046550
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0895648016599339 4.5044e-08  
a 2.715291198426057 1.6214e-08 au
q 2.472096680790064 1.2357e-07 au
i 11.78707772477282 5.2882e-06 deg
node 306.5139688786682 2.0778e-05 deg
peri 62.22828019101055 3.4368e-05 deg
M 318.6824612834772 2.7902e-05 deg
tp 2459188.066375649850
(2020-Dec-04.56637565)
0.00012738 TDB
period 1634.26712557162
4.47
1.4638e-05
4.008e-08
d
yr
n .2202822258167141 1.9731e-09 deg/d
Q 2.958485716062052 1.7666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      11267 days (30.85 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:22:42  

Additional Information
 Earth MOID = 1.49316 au 
 Jupiter MOID = 2.48437 au 
 T_jup = 3.325 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456756.5 (2014-Apr-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09191007043107891 4.4808e-08  
q 2.46427192986616 1.2317e-07 au
tp 2457556.502900379015
(2016-Jun-17.00290038)
0.00011858 TDB
node 306.6141522123154 2.082e-05 deg
peri 62.81861390069619 3.385e-05 deg
i 11.77657553716029 5.2842e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      11267 days (30.85 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58748  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:22:42  

Additional Information
 Jupiter MOID = 2.48437 au 
 T_jup = 3.325 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.00775771171029E-15 -5.481465589591638E-15 -1.828959287672027E-12 9.849512393521161E-15 -4.179868625883092E-13 -2.767081837666301E-15
q -5.481465589591638E-15 1.517092675862704E-14 5.533576398872302E-12 -2.53540581629087E-14 1.236305492380781E-12 8.434431361025371E-15
tp -1.828959287672027E-12 5.533576398872302E-12 1.406174975821788E-8 -1.830781240483209E-11 3.17570492861428E-9 2.398263676206491E-12
node 9.849512393521161E-15 -2.53540581629087E-14 -1.830781240483209E-11 4.334913473210236E-10 -4.281663724503543E-10 3.130973925370799E-11
peri -4.179868625883092E-13 1.236305492380781E-12 3.17570492861428E-9 -4.281663724503543E-10 1.145814002498346E-9 -3.017443563886091E-11
i -2.767081837666301E-15 8.434431361025371E-15 2.398263676206491E-12 3.130973925370799E-11 -3.017443563886091E-11 2.792274698805372E-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 14.7   n/a MPO436107  
diameter diameter 3.590 km 0.591 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.137   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

46550 (1989 SZ13)          Discovered 1989-Sep-26 by Baur, J. M., Birkle, K. at Calar Alto
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

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