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154921 (2004 ST32)
Classification: Main-belt Asteroid          SPK-ID: 2154921
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 .1290065144589878 7.0396e-08  
a 2.589647944295281 2.0808e-08 au
q 2.255566489325864 1.8635e-07 au
i 4.228199681476251 5.3855e-06 deg
node 47.84128303843639 0.0001071 deg
peri 264.0641310024006 0.00010908 deg
M 326.2731654858867 2.2721e-05 deg
tp 2459143.104292457945
(2020-Oct-20.60429246)
9.6614e-05 TDB
period 1522.157238426201
4.17
1.8346e-05
5.023e-08
d
yr
n .2365064468452771 2.8505e-09 deg/d
Q 2.923729399264698 2.3492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      6731 days (18.43 yr)  
   first obs. used      2000-11-01  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59954  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:15:42  

Additional Information
 Earth MOID = 1.24623 au 
 Jupiter MOID = 2.32773 au 
 T_jup = 3.405 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO432989  
diameter diameter 3.074 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154921 (2004 ST32)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2004 ST32 = 2000 VD60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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