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17454 (1990 SA7)
Classification: Main-belt Asteroid          SPK-ID: 2017454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07385630041251029 4.459e-08  
a 2.229471798460918 6.5492e-09 au
q 2.064811259552569 9.8173e-08 au
i 7.326561168934629 5.3843e-06 deg
node 40.97398807327888 2.578e-05 deg
peri 195.7476324199009 4.0234e-05 deg
M 149.0645147393734 3.1005e-05 deg
tp 2458697.030494005597
(2019-Aug-01.53049401)
0.000105 TDB
period 1215.909919774559
3.33
5.3577e-06
1.467e-08
d
yr
n .2960745645259208 1.3046e-09 deg/d
Q 2.394132337369267 7.0329e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      11120 days (30.44 yr)  
   first obs. used      1990-09-15  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:03:42  

Additional Information
 Earth MOID = 1.0531 au 
 Jupiter MOID = 2.58912 au 
 T_jup = 3.629 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.27   n/a E2021B10  
diameter diameter 2.135 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.387   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17454 (1990 SA7)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 SA7 = 1997 YJ1 = 1999 FN29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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