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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2837829446417428 4.7375e-08  
a 3.007133433737511 1.9967e-08 au
q 2.153760252980845 1.4995e-07 au
i 9.390913189998896 6.7754e-06 deg
node 359.3332407799959 2.1206e-05 deg
peri 49.58559035758575 2.5015e-05 deg
M 54.12870386434534 1.0998e-05 deg
tp 2458914.113459839197
(2020-Mar-05.61345984)
5.6646e-05 TDB
period 1904.703920424014
5.21
1.897e-05
5.194e-08
d
yr
n .1890057536710792 1.8825e-09 deg/d
Q 3.860506614494177 2.5633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      827  
   data-arc span      9985 days (27.34 yr)  
   first obs. used      1993-09-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5123  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:33  

Additional Information
 Earth MOID = 1.1759 au 
 Jupiter MOID = 1.681 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 14.93   n/a E2021B55  
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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