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46526 (1981 EN5)
Classification: Main-belt Asteroid          SPK-ID: 2046526
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09403523664480362 5.6216e-08  
a 2.480655237444159 1.2627e-08 au
q 2.247386235156926 1.3708e-07 au
i 5.168429888402795 3.5172e-06 deg
node 244.6545679425854 8.0185e-05 deg
peri 230.6952119242709 9.3926e-05 deg
M 116.8942099628225 4.8409e-05 deg
tp 2458737.118659860309
(2019-Sep-10.61865986)
0.00019147 TDB
period 1427.079087179286
3.91
1.0896e-05
2.983e-08
d
yr
n .2522635243093382 1.9261e-09 deg/d
Q 2.713924239731392 1.3814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      14828 days (40.60 yr)  
   first obs. used      1979-10-18  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58126  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:45  

Additional Information
 Earth MOID = 1.26791 au 
 Jupiter MOID = 2.38176 au 
 T_jup = 3.467 
[ 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 15.73   n/a E2021B10  

46526 (1981 EN5)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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