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22295 (1989 SZ9)
Classification: Main-belt Asteroid          SPK-ID: 2022295
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1591644940653577 2.0838e-08  
a 2.382390563673688 7.2454e-09 au
q 2.003198574940483 5.1539e-08 au
i 12.26721166428865 9.7613e-07 deg
node 2.257867629432537 2.3983e-06 deg
peri 215.2316062065811 3.5708e-06 deg
M 305.1858401201531 5.3538e-06 deg
tp 2459405.006976797757
(2021-Jul-09.50697680)
2.0448e-05 TDB
period 1343.129436054001
3.68
6.1272e-06
1.678e-08
d
yr
n .2680307573763323 1.2227e-09 deg/d
Q 2.761582552406892 8.3986e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3296  
   data-arc span      15514 days (42.48 yr)  
   first obs. used      1978-10-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:19:31  

Additional Information
 Earth MOID = 1.00943 au 
 Jupiter MOID = 2.24047 au 
 T_jup = 3.490 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457428.5 (2016-Feb-10.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595647322147634 2.0831e-08  
q 2.001845110732471 5.152e-08 au
tp 2458062.543265383978
(2017-Nov-05.04326538)
1.7973e-05 TDB
node 2.287198158233139 2.3969e-06 deg
peri 215.3288828018829 3.5587e-06 deg
i 12.27239957591241 9.765e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3296  
   data-arc span      15514 days (42.48 yr)  
   first obs. used      1978-10-02  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36551  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:19:31  

Additional Information
 Jupiter MOID = 2.24047 au 
 T_jup = 3.490 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.339285616221309E-16 -1.066229389107711E-15 5.078033115169809E-14 -9.451959552983165E-15 1.148844402492044E-14 -1.259359492176526E-15
q -1.066229389107711E-15 2.654309893215218E-15 -9.29058063504505E-14 2.246096437957588E-14 -2.49711711284417E-14 2.84879917631913E-15
tp 5.078033115169809E-14 -9.29058063504505E-14 3.230310912279214E-10 1.373125716917533E-11 5.201490829303198E-11 2.751359517062141E-12
node -9.451959552983165E-15 2.246096437957588E-14 1.373125716917533E-11 5.745122868049892E-12 -1.767613464025341E-12 1.552578588293869E-12
peri 1.148844402492044E-14 -2.49711711284417E-14 5.201490829303198E-11 -1.767613464025341E-12 1.266421209250156E-11 -1.164489609739087E-12
i -1.259359492176526E-15 2.84879917631913E-15 2.751359517062141E-12 1.552578588293869E-12 -1.164489609739087E-12 9.535556125628069E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.66   n/a E2021B10  
diameter diameter 7.129 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.80 h n/a LCDB (Rev. 2020-October); 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 Bull. 37, 146-147.]
geometric albedo albedo 0.185   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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