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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07389011068389777 5.0228e-08  
a 2.229751606314039 7.656e-09 au
q 2.064995013325896 1.1259e-07 au
i 7.326286156568696 5.7203e-06 deg
node 40.97671279064062 3.0222e-05 deg
peri 195.8723915643946 4.4094e-05 deg
M 89.71375054147828 3.2466e-05 deg
tp 2458697.432290078905
(2019-Aug-01.93229008)
0.00010984 TDB
period 1216.138829477997
3.33
6.2635e-06
1.715e-08
d
yr
n .2960188354108576 1.5246e-09 deg/d
Q 2.394508199302182 8.2217e-09 au
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      10465 days (28.65 yr)  
   first obs. used      1990-09-15  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:31:07  

Additional Information
 Earth MOID = 1.05463 au 
 Jupiter MOID = 2.59006 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 15.3   n/a MPO473998  
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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