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46641 (1995 EY)
Classification: Main-belt Asteroid          SPK-ID: 2046641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2728266923684716 3.8494e-08  
a 2.637041325138981 1.1595e-08 au
q 1.917586062762342 1.0513e-07 au
i 4.457299630135518 4.3962e-06 deg
node 324.7011125579752 4.6133e-05 deg
peri 143.4977847906293 4.6976e-05 deg
M 263.2152085366845 7.5594e-06 deg
tp 2459021.012052927111
(2020-Jun-20.51205293)
3.4054e-05 TDB
period 1564.133545828214
4.28
1.0316e-05
2.824e-08
d
yr
n .2301593754319607 1.518e-09 deg/d
Q 3.356496587515621 1.4758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      23411 days (64.10 yr)  
   first obs. used      1955-10-24  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48381  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:18:42  

Additional Information
 Earth MOID = .936667 au 
 Jupiter MOID = 1.79317 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456615.5 (2013-Nov-19.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2716817364298755 3.8765e-08  
q 1.922133892058317 1.0597e-07 au
tp 2455890.816284042931
(2011-Nov-25.31628404)
3.0962e-05 TDB
node 324.7937306970189 4.609e-05 deg
peri 143.4967198925311 4.6941e-05 deg
i 4.457974108540994 4.3964e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      23411 days (64.10 yr)  
   first obs. used      1955-10-24  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48381  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:18:42  

Additional Information
 Jupiter MOID = 1.79317 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.502727508910818E-15 -4.096884394185891E-15 4.003401809897761E-13 -9.216335431547416E-15 1.599057032272689E-13 -1.354682265704742E-15
q -4.096884394185891E-15 1.123040016579317E-14 -1.102126446676243E-12 2.508321153886968E-14 -4.307545604705222E-13 3.977923523528916E-15
tp 4.003401809897761E-13 -1.102126446676243E-12 9.586238076768959E-10 -6.537173175980484E-12 2.80999900025212E-10 1.140763584635944E-12
node -9.216335431547416E-15 2.508321153886968E-14 -6.537173175980484E-12 2.124266004162901E-9 -2.119519488783948E-9 2.25098085389334E-11
peri 1.599057032272689E-13 -4.307545604705222E-13 2.80999900025212E-10 -2.119519488783948E-9 2.203417228650259E-9 -2.213101801456342E-11
i -1.354682265704742E-15 3.977923523528916E-15 1.140763584635944E-12 2.25098085389334E-11 -2.213101801456342E-11 1.932855305607371E-11

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 14.9   n/a MPO452808  

46641 (1995 EY)          Discovered 1995-Mar-05 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 EY = 1991 GH14 = 1998 XS46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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