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16648 (1993 SH7)
Classification: Main-belt Asteroid          SPK-ID: 2016648
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065961142442137 3.025e-08  
a 2.313417921860265 8.092e-09 au
q 2.066816560767037 7.178e-08 au
i 4.297537534976279 5.2019e-06 deg
node 170.5145587127124 4.274e-05 deg
peri 83.95190906025292 5.1428e-05 deg
M 5.909698043240152 3.0273e-05 deg
tp 2459179.401947884271
(2020-Nov-25.90194788)
0.00010806 TDB
period 1285.226200406362
3.52
6.7433e-06
1.846e-08
d
yr
n .2801063345006314 1.4697e-09 deg/d
Q 2.560019282953493 8.9546e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1538  
   data-arc span      10833 days (29.66 yr)  
   first obs. used      1990-11-16  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .527  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:37:46  

Additional Information
 Earth MOID = 1.05601 au 
 Jupiter MOID = 2.47083 au 
 T_jup = 3.571 
[ 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 14.82   n/a E2021B10  

16648 (1993 SH7)          Discovered 1993-Sep-17 by Elst, E. W. at La Silla
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 SH7 = 1990 WT4 = 1999 FP18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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