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JPL Small-Body Database Browser
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382395 (1990 SM)
Classification: Apollo [NEO, PHA]          SPK-ID: 2382395
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7639093699282832 1.5794e-07  
a 2.106013266915905 1.9054e-08 au
q .4972099991255708 3.3361e-07 au
i 11.61181998084823 8.4687e-06 deg
node 136.2183536461334 0.0001204 deg
peri 107.7090753208856 0.00010193 deg
M 285.638930906213 0.00023684 deg
tp 2459231.086143128161
(2021-Jan-16.58614313)
0.00073173 TDB
period 1116.323535120794
3.06
1.515e-05
4.148e-08
d
yr
n .3224871541932022 4.3765e-09 deg/d
Q 3.71481653470624 3.3609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      11779 days (32.25 yr)  
   first obs. used      1987-09-28  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .62169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-29 07:27:48  

Additional Information
 Earth MOID = .031367 au 
 Jupiter MOID = 1.53626 au 
 T_jup = 3.275 
[ 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 16.2   n/a MPO460499  

382395 (1990 SM)          Discovered 1990-Sep-22 by McNaught, R. H., McKenzie, P. at Siding Spring
Reference: Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 1990 SM = 1987 SB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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