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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211062724744136 2.8604e-08  
a 2.250672554430559 5.4397e-09 au
q 1.978101990803008 6.3705e-08 au
i 6.336627141960606 3.5183e-06 deg
node 293.3729998928753 3.2467e-05 deg
peri 142.4717414645812 3.6586e-05 deg
M 113.1634317417252 1.6665e-05 deg
tp 2458812.822578878359
(2019-Nov-25.32257888)
5.6833e-05 TDB
period 1233.294797230253
3.38
4.4712e-06
1.224e-08
d
yr
n .2919010124817618 1.0583e-09 deg/d
Q 2.523243118058111 6.0985e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2519  
   data-arc span      33593 days (91.97 yr)  
   first obs. used      1929-01-29  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:58:27  

Additional Information
 Earth MOID = .997377 au 
 Jupiter MOID = 2.68902 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 12.45   n/a E2021B10  
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. 2020-October); 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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