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100137 (1993 SD7)
Classification: Main-belt Asteroid          SPK-ID: 2100137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2836382684537048 6.4883e-08  
a 3.006668514203706 2.5328e-08 au
q 2.153862263020693 2.0821e-07 au
i 9.390617366386127 7.9344e-06 deg
node 359.3389418036668 2.2361e-05 deg
peri 49.58074654352212 2.6283e-05 deg
M 16.33406766254932 1.2463e-05 deg
tp 2458914.099033440079
(2020-Mar-05.59903344)
6.5198e-05 TDB
period 1904.262220787019
5.21
2.4062e-05
6.588e-08
d
yr
n .1890495941526447 2.3888e-09 deg/d
Q 3.859474765386719 3.2512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      9635 days (26.38 yr)  
   first obs. used      1993-09-17  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .522  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:01:10  

Additional Information
 Earth MOID = 1.17689 au 
 Jupiter MOID = 1.68087 au 
 T_jup = 3.169 
[ show covariance matrix ]

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 14.8   n/a MPO333616  
diameter diameter 3.462 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100137 (1993 SD7)          Discovered 1993-Sep-17 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1993 SD7 = 1998 UT3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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