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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596831382076223 7.1573e-08  
a 2.381649456716843 1.6464e-08 au
q 2.001340197357819 1.674e-07 au
i 12.27238095039581 7.7916e-06 deg
node 2.286896774602527 2.5172e-05 deg
peri 215.3485373746972 3.2183e-05 deg
M 236.106519994527 2.3889e-05 deg
tp 2458062.520385615295
(2017-Nov-05.02038562)
9.1221e-05 JED
period 1342.502759742957
3.68
1.3921e-05
3.811e-08
d
yr
n .2681558733398265 2.7806e-09 deg/d
Q 2.761958716075867 1.9093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      13639 days (37.34 yr)  
   first obs. used      1978-10-02  
   last obs. used      2016-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48069  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 20:06:38  

Additional Information
 Earth MOID = 1.00816 au 
 Jupiter MOID = 2.24253 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 13.6 mag n/a MPO347694  
rotation period rot_per 3.80 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 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
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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