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7141 Bettarini (1994 EZ1)
Classification: Main-belt Asteroid          SPK-ID: 2007141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09439826546403543 1.1085e-08  
a 2.785999613902166 1.2747e-08 au
q 2.523006082766329 3.6958e-08 au
i 9.880318665822291 6.3337e-07 deg
node 47.45260795806904 1.7811e-06 deg
peri 155.8674703933414 1.3307e-05 deg
M 302.3798391387116 1.6369e-05 deg
tp 2459668.357907843110
(2022-Mar-29.85790784)
7.7896e-05 TDB
period 1698.517417525506
4.65
1.1657e-05
3.192e-08
d
yr
n .2119495486389936 1.4547e-09 deg/d
Q 3.048993145038003 1.3951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2082  
   data-arc span      10858 days (29.73 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 00:56:31  

Additional Information
 Earth MOID = 1.52232 au 
 Jupiter MOID = 1.91645 au 
 T_jup = 3.303 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457216.5 (2015-Jul-13.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09481187246337396 1.1027e-08  
q 2.520779646181746 3.6777e-08 au
tp 2457975.031980106840
(2017-Aug-09.53198011)
7.4361e-05 TDB
node 47.47611265910671 1.782e-06 deg
peri 156.8475430254493 1.3288e-05 deg
i 9.881215660239311 6.3341e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2082  
   data-arc span      10858 days (29.73 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 00:56:31  

Additional Information
 Jupiter MOID = 1.91645 au 
 T_jup = 3.303 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.215924366745529E-16 -3.883406796198073E-16 -2.93740580971018E-13 -5.913478190632345E-15 -4.059558517395442E-14 -7.722440118998192E-16
q -3.883406796198073E-16 1.352562929830054E-15 1.011949164433004E-12 1.648570333553644E-14 1.362193140306857E-13 2.53404196761418E-15
tp -2.93740580971018E-13 1.011949164433004E-12 5.529631351201519E-9 1.589292948140585E-11 9.770737837235954E-10 1.380569647343369E-11
node -5.913478190632345E-15 1.648570333553644E-14 1.589292948140585E-11 3.175644754387017E-12 4.060552730448562E-14 3.630354388469165E-14
peri -4.059558517395442E-14 1.362193140306857E-13 9.770737837235954E-10 4.060552730448562E-14 1.765804821143298E-10 2.351669058171952E-12
i -7.722440118998192E-16 2.53404196761418E-15 1.380569647343369E-11 3.630354388469165E-14 2.351669058171952E-12 4.012085594750247E-13

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 13.56   n/a MPCxxxxx  
diameter diameter 6.771 km 0.467 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.184   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7141 Bettarini (1994 EZ1)          Discovered 1994-Mar-12 by Boattini, A., Tombelli, M. at Cima Ekar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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