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JPL Small-Body Database Browser
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379320 (2009 WS32)
Classification: Main-belt Asteroid          SPK-ID: 2379320
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1085679155544283 6.8258e-08  
a 2.75306828976364 3.0075e-08 au
q 2.454173404165007 1.8305e-07 au
i 1.999882826131511 6.4417e-06 deg
node 245.3683741799172 0.00024846 deg
peri 229.9787973411298 0.00025209 deg
M 71.5764113274773 4.0979e-05 deg
tp 2458668.764978678389
(2019-Jul-04.26497868)
0.00018813 TDB
period 1668.491133613655
4.57
2.734e-05
7.485e-08
d
yr
n .2157638076387641 3.5355e-09 deg/d
Q 3.051963175362273 3.334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5680 days (15.55 yr)  
   first obs. used      2004-10-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5891  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:28:43  

Additional Information
 Earth MOID = 1.47115 au 
 Jupiter MOID = 2.03482 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457289.5 (2015-Sep-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094495896990514 6.8421e-08  
q 2.452344029366142 1.8399e-07 au
tp 2457002.169859044997
(2014-Dec-10.66985905)
0.00017919 TDB
node 245.4039228806213 0.00024857 deg
peri 230.454232348173 0.00025212 deg
i 1.999211066737564 6.4407e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      5680 days (15.55 yr)  
   first obs. used      2004-10-08  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5891  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:28:43  

Additional Information
 Jupiter MOID = 2.03482 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.681463429331359E-15 -1.246376552442826E-14 3.000501389157631E-12 1.49754663451378E-14 5.863267665448257E-13 -2.057240175533824E-15
q -1.246376552442826E-14 3.385164152085672E-14 -7.486484547328573E-12 -4.707977197866636E-14 -1.416087887190218E-12 5.630236369499746E-15
tp 3.000501389157631E-12 -7.486484547328573E-12 3.210962821863538E-8 -1.097929192330335E-10 7.64365251255494E-9 -5.851096480163622E-12
node 1.49754663451378E-14 -4.707977197866636E-14 -1.097929192330335E-10 6.178939009208794E-8 -6.177804394249383E-8 -1.29107619263651E-10
peri 5.863267665448257E-13 -1.416087887190218E-12 7.64365251255494E-9 -6.177804394249383E-8 6.356459147087653E-8 1.277179307704E-10
i -2.057240175533824E-15 5.630236369499746E-15 -5.851096480163622E-12 -1.29107619263651E-10 1.277179307704E-10 4.14823013685749E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO471889  

379320 (2009 WS32)          Discovered 2009-Nov-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

Alternate Designations
 2009 WS32 = 2004 TN228 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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