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22295 (1989 SZ9)
Classification: Main-belt Asteroid          SPK-ID: 2022295
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1592014297094969 7.8518e-08  
a 2.382135289426403 1.8333e-08 AU
q 2.002895945588274 1.8708e-07 AU
i 12.270976741334 8.9324e-06 deg
node 2.293388103721826 2.9915e-05 deg
peri 215.3159346302127 3.944e-05 deg
M 21.69360515006244 2.7536e-05 deg
tp 2456719.576009275606
(2014-Mar-03.07600928)
0.00010248 JED
period 1342.913566429419
3.68
1.5503e-05
4.244e-08
d
yr
n .2680738425758698 3.0947e-09 deg/d
Q 2.761374633264532 2.1252e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      12936 days (35.42 yr)  
   first obs. used      1978-10-02  
   last obs. used      2014-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:15:59  

Additional Information
 Earth MOID = 1.0104 AU 
 T_jup = 3.490 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO257026  
rotation period rot_per 3.80 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Brinsfield, J.W. (2010) Minor Planet Bul. 37, 146-147.]

22295 (1989 SZ9)          Discovered 1989-Sep-26 by Debehogne, H. at La Silla (809)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 SZ9 = 1978 TK1 = 1999 EJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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