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3869 Norton (1981 JE)
Classification: Main-belt Asteroid          SPK-ID: 2003869
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264846449329164 1.8698e-08  
a 2.452652351357542 5.9997e-09 au
q 2.142429489552201 4.6742e-08 au
i 4.356499408665233 7.5589e-07 deg
node 248.8538948611914 5.3658e-06 deg
peri 68.81826781039528 6.5451e-06 deg
M 30.1253100436405 3.8323e-06 deg
tp 2459083.096392370562
(2020-Aug-21.59639237)
1.4858e-05 TDB
period 1402.983029398566
3.84
5.148e-06
1.409e-08
d
yr
n .256596118738746 9.4153e-10 deg/d
Q 2.762875213162884 6.7585e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3268  
   data-arc span      24871 days (68.09 yr)  
   first obs. used      1953-01-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:40:05  

Additional Information
 Earth MOID = 1.13171 au 
 Jupiter MOID = 2.49733 au 
 T_jup = 3.480 
[ 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 12.70   n/a E2021B10  
diameter diameter 8.428 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 17.0957 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.162   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3869 Norton (1981 JE)          Discovered 1981-May-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 JE = 1955 SX2 = 1974 QK = 1978 TC1 = 1988 BP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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