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17559 (1994 AR1)
Classification: Main-belt Asteroid          SPK-ID: 2017559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1289186574363315 4.2949e-08  
a 2.367370326221906 9.9665e-09 au
q 2.062172122110768 1.0208e-07 au
i 10.51065309394506 3.8539e-06 deg
node 269.3963637048744 2.47e-05 deg
peri 211.8925933664224 3.0972e-05 deg
M 84.86726194810069 1.762e-05 deg
tp 2458686.857132011760
(2019-Jul-22.35713201)
6.4837e-05 TDB
period 1330.447452691661
3.64
8.4017e-06
2.3e-08
d
yr
n .2705856584351943 1.7087e-09 deg/d
Q 2.672568530333044 1.1251e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1581  
   data-arc span      11027 days (30.19 yr)  
   first obs. used      1989-11-22  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:06:51  

Additional Information
 Earth MOID = 1.08583 au 
 Jupiter MOID = 2.45883 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456700.5 (2014-Feb-12.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288495953744028 4.3161e-08  
q 2.062891207533292 1.027e-07 au
tp 2457357.204775926921
(2015-Nov-30.70477593)
6.4184e-05 TDB
node 269.4565930019513 2.4697e-05 deg
peri 212.0928126728244 3.0924e-05 deg
i 10.51025976121469 3.8543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1581  
   data-arc span      11027 days (30.19 yr)  
   first obs. used      1989-11-22  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46524  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:06:51  

Additional Information
 Jupiter MOID = 2.45883 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.862835227253316E-15 -4.41669902762697E-15 1.13584171424985E-12 1.190590513337574E-14 3.746351760099058E-13 -5.718679513561001E-16
q -4.41669902762697E-15 1.054790676397914E-14 -2.697945145870612E-12 -2.664668463778053E-14 -9.018689402089876E-13 1.547103940586964E-15
tp 1.13584171424985E-12 -2.697945145870612E-12 4.119599501672738E-9 2.556719095386264E-11 1.210484751607856E-9 2.23038380274238E-12
node 1.190590513337574E-14 -2.664668463778053E-14 2.556719095386264E-11 6.099526000980475E-10 -5.91671879770664E-10 1.39513586744209E-11
peri 3.746351760099058E-13 -9.018689402089876E-13 1.210484751607856E-9 -5.91671879770664E-10 9.563165364390805E-10 -1.317165804661728E-11
i -5.718679513561001E-16 1.547103940586964E-15 2.23038380274238E-12 1.39513586744209E-11 -1.317165804661728E-11 1.485596077434872E-11

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 14.0   n/a MPO358800  
diameter diameter 4.094 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.220   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17559 (1994 AR1)          Discovered 1994-Jan-08 by Sugie, A. at Dynic
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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