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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833588698315893 1.5547e-08  
a 2.242217208398182 5.2584e-09 au
q 1.83108679514935 3.5674e-08 au
i 5.99987852611912 2.7077e-07 deg
node 357.7419101549114 3.2853e-06 deg
peri 347.0767413439333 4.3037e-06 deg
M 187.966977695402 4.6022e-06 deg
tp 2459786.535962035543
(2022-Jul-26.03596204)
1.647e-05 TDB
period 1226.351449893448
3.36
4.314e-06
1.181e-08
d
yr
n .2935536954200844 1.0327e-09 deg/d
Q 2.653347621647013 6.2226e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2680  
   data-arc span      26497 days (72.54 yr)  
   first obs. used      1948-09-05  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44424  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:55:32  

Additional Information
 Earth MOID = .822671 au 
 Jupiter MOID = 2.75508 au 
 T_jup = 3.604 
[ 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 12.96   n/a MPCxxxxx  
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. 2020-October); 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

Alternate Designations
 1948 RD = 1938 SK = 1948 RE1 = 1980 BF6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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