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4149 Harrison (1984 EZ)
Classification: Main-belt Asteroid          SPK-ID: 2004149
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1247796827121064 1.6737e-08  
a 2.664174965582932 9.1627e-09 au
q 2.331740058687957 4.3549e-08 au
i 12.93384944924777 3.6557e-07 deg
node 154.6729080803351 3.3883e-06 deg
peri 76.36438253744763 1.0134e-05 deg
M 117.0870136478647 7.3853e-06 deg
tp 2458683.906699150370
(2019-Jul-19.40669915)
3.1707e-05 TDB
period 1588.336592691451
4.35
8.194e-06
2.243e-08
d
yr
n .226652210656418 1.1693e-09 deg/d
Q 2.996609872477907 1.0306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2957  
   data-arc span      15829 days (43.34 yr)  
   first obs. used      1977-10-12  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41688  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:00:17  

Additional Information
 Earth MOID = 1.36223 au 
 Jupiter MOID = 2.08481 au 
 T_jup = 3.337 
[ 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 12.41   n/a E2021B10  
diameter diameter 10.130 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.7490 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.230   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4149 Harrison (1984 EZ)          Discovered 1984-Mar-09 by Skiff, B. A. at Flagstaff
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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