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17453 (1990 RQ9)
Classification: Main-belt Asteroid          SPK-ID: 2017453
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953827560632843 4.785e-08  
a 2.289242009671549 8.0232e-09 au
q 1.84196359652607 1.077e-07 au
i 5.829658376773704 4.6944e-06 deg
node 208.681718546181 3.5801e-05 deg
peri 135.0839096110491 3.7538e-05 deg
M 204.9020716722537 1.4212e-05 deg
tp 2459545.553940204944
(2021-Nov-27.05394020)		 5.1628e-05 TDB
period 1265.132426908614
3.46		 6.651e-06
1.821e-08		 d
yr
n .2845551914906411 1.4959e-09 deg/d
Q 2.736520422817028 9.5908e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1519  
   data-arc span      12273 days (33.60 yr)  
   first obs. used      1986-06-26  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51437  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:04:48  

Additional Information
 Earth MOID = .840318 au 
 Jupiter MOID = 2.6979 au 
 T_jup = 3.567 
[ 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 14.3   n/a MPO452418  
diameter diameter 3.584 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.379   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17453 (1990 RQ9)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RQ9 = 1999 CN69 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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