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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7640390861576245 1.9814e-07  
a 2.106020133550749 2.0463e-08 au
q .4969384352830765 4.1806e-07 au
i 11.60947820988328 8.5788e-06 deg
node 136.2427346992127 0.00014451 deg
peri 107.6786311802983 0.00012825 deg
M 156.6897533273505 0.00023947 deg
tp 2458114.618569938066
(2017-Dec-27.11856994)
0.00074845 TDB
period 1116.328994767548
3.06
1.627e-05
4.454e-08
d
yr
n .3224855770004992 4.7e-09 deg/d
Q 3.715101831818422 3.6097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      11368 days (31.12 yr)  
   first obs. used      1987-09-28  
   last obs. used      2018-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .60267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-13 08:24:38  

Additional Information
 Earth MOID = .0312814 au 
 Jupiter MOID = 1.53564 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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