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22509 (1997 YY2)
Classification: Main-belt Asteroid          SPK-ID: 2022509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07207727774080067 1.799e-08  
a 2.193353786144966 4.9942e-09 au
q 2.035262816117158 4.0626e-08 au
i .9699633505439734 1.1659e-06 deg
node 107.7188263753344 4.5697e-05 deg
peri 311.309351619862 4.6662e-05 deg
M 65.9061768848898 1.3852e-05 deg
tp 2458983.287367660285
(2020-May-13.78736766)
4.5462e-05 TDB
period 1186.48283572682
3.25
4.0524e-06
1.109e-08
d
yr
n .303417790093415 1.0363e-09 deg/d
Q 2.351444756172773 5.3542e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2334  
   data-arc span      15296 days (41.88 yr)  
   first obs. used      1979-04-20  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45721  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:10  

Additional Information
 Earth MOID = 1.04682 au 
 Jupiter MOID = 2.83378 au 
 T_jup = 3.667 
[ 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 14.5   n/a MPO344480  

22509 (1997 YY2)          Discovered 1997-Dec-24 by Kobayashi, T. at Oizumi
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YY2 = 1979 HX1 = 1999 LU21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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