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4226 Damiaan (1989 RE)
Classification: Main-belt Asteroid          SPK-ID: 2004226
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2555512992415001 3.6765e-08  
a 2.866188928781658 1.1294e-08 au
q 2.133730624159902 1.0773e-07 au
i 5.409044882571585 4.0075e-06 deg
node 211.9216391126245 4.0529e-05 deg
peri 132.8879659802291 4.1073e-05 deg
M 116.8366388915979 7.7673e-06 deg
tp 2458425.282351755207
(2018-Nov-02.78235176)
3.7519e-05 TDB
period 1772.375132771962
4.85
1.0476e-05
2.868e-08
d
yr
n .2031172709114727 1.2006e-09 deg/d
Q 3.598647233403415 1.418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2514  
   data-arc span      32232 days (88.25 yr)  
   first obs. used      1931-10-07  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45904  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:26:38  

Additional Information
 Earth MOID = 1.13116 au 
 Jupiter MOID = 1.86995 au 
 T_jup = 3.244 
[ 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 11.7   n/a MPO502194  
diameter diameter 33.065 km 0.312 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 24. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.026   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4226 Damiaan (1989 RE)          Discovered 1989-Sep-01 by Elst, E. W. at Haute Provence
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 RE = 1931 TY2 = 1965 SJ = 1970 SD1 = 1970 WT = 1975 WQ = 1978 JM = 1982 BF12 = 1983 ED2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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