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17561 (1994 AE11)
Classification: Main-belt Asteroid          SPK-ID: 2017561
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 .1492653041849203 6.0984e-08  
a 2.480291650411492 1.1223e-08 au
q 2.110070162745503 1.5126e-07 au
i 4.732599479064804 6.1032e-06 deg
node 77.6625507624529 7.8982e-05 deg
peri 348.5726918867759 8.1963e-05 deg
M 315.4209246054861 2.1119e-05 deg
tp 2459177.177444800176
(2020-Nov-23.67744480)
8.3823e-05 TDB
period 1426.76535045163
3.91
9.6839e-06
2.651e-08
d
yr
n .2523189954718519 1.7126e-09 deg/d
Q 2.850513138077482 1.2898e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      24621 days (67.41 yr)  
   first obs. used      1951-02-04  
   last obs. used      2018-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53541  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:44:02  

Additional Information
 Earth MOID = 1.12414 au 
 Jupiter MOID = 2.43751 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456290.5 (2012-Dec-29.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500612917264995 6.1665e-08  
q 2.108998766084902 1.5331e-07 au
tp 2456319.392326637532
(2013-Jan-26.89232664)
8.2865e-05 TDB
node 77.69944051314299 7.8982e-05 deg
peri 347.9336025914248 8.1923e-05 deg
i 4.733343599237008 6.1131e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      24621 days (67.41 yr)  
   first obs. used      1951-02-04  
   last obs. used      2018-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53541  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:44:02  

Additional Information
 Jupiter MOID = 2.43751 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.802605962334762E-15 -9.435369893406383E-15 -3.072235605994991E-12 -8.027758855419398E-14 -7.883671240567649E-13 -4.544077306298188E-16
q -9.435369893406383E-15 2.350242451669656E-14 7.556792778620744E-12 1.946279112343482E-13 1.940869233444855E-12 1.426242847454528E-15
tp -3.072235605994991E-12 7.556792778620744E-12 6.866684610707547E-9 9.334462492223533E-11 1.858685839761189E-9 -1.380571010357923E-12
node -8.027758855419398E-14 1.946279112343482E-13 9.334462492223533E-11 6.238207444427469E-9 -6.190124661126839E-9 -2.692100002178255E-10
peri -7.883671240567649E-13 1.940869233444855E-12 1.858685839761189E-9 -6.190124661126839E-9 6.711359074674152E-9 2.679248823705739E-10
i -4.544077306298188E-16 1.426242847454528E-15 -1.380571010357923E-12 -2.692100002178255E-10 2.679248823705739E-10 3.737022655747738E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO395171  
diameter diameter 5.778 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17561 (1994 AE11)          Discovered 1994-Jan-08 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 AE11 = 1977 XD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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