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1829 Dawson (1967 JJ)
Classification: Main-belt Asteroid          SPK-ID: 2001829
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209655798127874 2.8736e-08  
a 2.250749294951533 5.9299e-09 au
q 1.978486101474498 6.4001e-08 au
i 6.336452493694221 3.6194e-06 deg
node 293.3763980468306 3.5076e-05 deg
peri 142.6343193669402 3.9582e-05 deg
M 297.9014392683683 1.8826e-05 deg
tp 2458813.249302461434
(2019-Nov-25.74930246)
6.4767e-05 TDB
period 1233.357874703576
3.38
4.8742e-06
1.334e-08
d
yr
n .2918860838234174 1.1535e-09 deg/d
Q 2.523012488428567 6.6472e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      33147 days (90.75 yr)  
   first obs. used      1929-01-29  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41154  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:09:17  

Additional Information
 Earth MOID = .998043 au 
 Jupiter MOID = 2.68965 au 
 T_jup = 3.610 
[ 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 12.5   n/a MPO416726  
diameter diameter 8.068 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.254 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2003) Minor Planet Bull. 30, 31.]
[Pray, D.P. (2006) Minor Planet Bull. 33, 4-5.]
[Galad, A. (2010) Astron. Astrophys. 514, A55.]
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]
[Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.271   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1829 Dawson (1967 JJ)          Discovered 1967-May-06 by Cesco, C. U. and Klemola, A. R. at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1967 JJ = 1929 BF = 1936 DN = 1966 BK = 1971 OA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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