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90145 (2002 YA9)
Classification: Main-belt Asteroid          SPK-ID: 2090145
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09758791644301801 3.8564e-08  
a 2.40055819580504 1.149e-08 au
q 2.166292723176216 9.2439e-08 au
i 7.482189532144141 4.4047e-06 deg
node 91.30259082236434 3.0619e-05 deg
peri 318.6807330468004 3.8189e-05 deg
M 286.0324447228944 2.4373e-05 deg
tp 2459279.629378984697
(2021-Mar-06.12937898)
9.2613e-05 TDB
period 1358.522342100352
3.72
9.7536e-06
2.67e-08
d
yr
n .2649938016061036 1.9025e-09 deg/d
Q 2.634823668433865 1.2611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      7933 days (21.72 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55891  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:11:42  

Additional Information
 Earth MOID = 1.18377 au 
 Jupiter MOID = 2.66285 au 
 T_jup = 3.508 
[ 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 15.4   n/a MPO385373  
diameter diameter 1.986 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.340   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90145 (2002 YA9)          Discovered 2002-Dec-31 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2002 YA9 = 1998 VT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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