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3382 Cassidy (1948 RD)
Classification: Main-belt Asteroid          SPK-ID: 2003382
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1832200900274857 3.3268e-08  
a 2.24242143359276 6.1059e-09 au
q 1.831564776650331 7.5003e-08 au
i 5.999248998033925 3.7861e-06 deg
node 357.745532695901 3.361e-05 deg
peri 347.0590874612212 3.4903e-05 deg
M 129.2857700069949 1.0579e-05 deg
tp 2458560.023740294112
(2019-Mar-17.52374029)
3.5247e-05 TDB
period 1226.519001167263
3.36
5.0095e-06
1.372e-08
d
yr
n .293513593884312 1.1988e-09 deg/d
Q 2.653278090535189 7.2246e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2392  
   data-arc span      26163 days (71.63 yr)  
   first obs. used      1948-09-05  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44916  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:53:20  

Additional Information
 Earth MOID = .824949 au 
 Jupiter MOID = 2.75468 au 
 T_jup = 3.604 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO347548  
diameter diameter 6.403 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.258 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Risley, E. (2013) Minor Planet Bull. 40, 80-81.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.226   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3382 Cassidy (1948 RD)          Discovered 1948-Sep-07 by Giclas, H. L. at Flagstaff (LO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 RD = 1938 SK = 1948 RE1 = 1980 BF6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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