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59188 (1999 AJ18)
Classification: Main-belt Asteroid          SPK-ID: 2059188
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1645297279176452 4.12e-08  
a 2.335589645285109 9.7964e-09 au
q 1.951315716419081 9.737e-08 au
i 2.295167741416619 4.5296e-06 deg
node 309.5412534798145 9.2347e-05 deg
peri 345.0604714471311 9.3182e-05 deg
M 197.6340185933271 1.1501e-05 deg
tp 2459588.511445745225
(2022-Jan-09.01144575)
4.1809e-05 TDB
period 1303.746749376537
3.57
8.2026e-06
2.246e-08
d
yr
n .2761272464703404 1.7373e-09 deg/d
Q 2.719863574151137 1.1408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      9610 days (26.31 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:44:08  

Additional Information
 Earth MOID = .935392 au 
 Jupiter MOID = 2.46609 au 
 T_jup = 3.548 
[ 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 15.7   n/a MPO449380  
diameter diameter 2.011 km 0.545 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.145   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59188 (1999 AJ18)          Discovered 1999-Jan-11 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 AJ18 = 1997 WA9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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