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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595373299798664 7.186e-08  
a 2.381972705534592 1.653e-08 au
q 2.001959140008684 1.6809e-07 au
i 12.27240190345659 7.8318e-06 deg
node 2.287111883213195 2.54e-05 deg
peri 215.3258412628797 3.2453e-05 deg
M 182.5029144762422 2.3705e-05 deg
tp 2458062.552337935447
(2017-Nov-05.05233794)
9.1382e-05 JED
period 1342.776085328226
3.68
1.3977e-05
3.827e-08
d
yr
n .268101289510233 2.7907e-09 deg/d
Q 2.761986271060499 1.9167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      13589 days (37.20 yr)  
   first obs. used      1978-10-02  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47443  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:50:02  

Additional Information
 Earth MOID = 1.00875 au 
 Jupiter MOID = 2.242 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. 2015-December); 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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