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3270 Dudley (1982 DA)
Classification: Mars-crossing Asteroid          SPK-ID: 2003270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3302674173617138 3.9193e-08  
a 2.148580969025803 5.8603e-09 au
q 1.438974681393123 8.2266e-08 au
i 27.68213099851288 3.5113e-06 deg
node 146.9188551639992 9.2223e-06 deg
peri 326.9260483152522 1.1912e-05 deg
M 136.8662034720028 1.1886e-05 deg
tp 2458763.159463233044
(2019-Oct-06.65946323)
3.6543e-05 TDB
period 1150.339450076955
3.15
4.7063e-06
1.289e-08
d
yr
n .3129511032381937 1.2804e-09 deg/d
Q 2.858187256658483 7.7957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1745  
   data-arc span      14066 days (38.51 yr)  
   first obs. used      1982-02-18  
   last obs. used      2020-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:01:44  

Additional Information
 Earth MOID = .491065 au 
 Jupiter MOID = 2.32675 au 
 T_jup = 3.496 
[ 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 14.28   n/a E2021B10  
rotation period rot_per 4.047 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Koff, R.A. (2004) Minor Planet Bull. 31, 58-60.]

3270 Dudley (1982 DA)          Discovered 1982-Feb-18 by Shoemaker, C. and Bus, S. J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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