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19395 Barrera (1998 EP1)
Classification: Main-belt Asteroid          SPK-ID: 2019395
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08226932078901161 3.3681e-08  
a 2.262570117743297 7.1511e-09 au
q 2.076430010919042 7.5751e-08 au
i 2.794593764314881 4.086e-06 deg
node 190.7566636142435 7.5633e-05 deg
peri 282.6989515256765 7.9867e-05 deg
M 238.4309267354603 2.6745e-05 deg
tp 2459420.280347418638
(2021-Jul-24.78034742)
9.2947e-05 TDB
period 1243.086921801764
3.40
5.8933e-06
1.613e-08
d
yr
n .2896016309770247 1.373e-09 deg/d
Q 2.448710224567552 7.7394e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      24272 days (66.45 yr)  
   first obs. used      1954-04-08  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52409  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:50:16  

Additional Information
 Earth MOID = 1.095 au 
 Jupiter MOID = 2.61171 au 
 T_jup = 3.613 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456429.5 (2013-May-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08179134965930117 3.3585e-08  
q 2.077806743650162 7.55e-08 au
tp 2456932.102156972246
(2014-Oct-01.60215697)
9.0615e-05 TDB
node 190.8708361101705 7.5655e-05 deg
peri 282.2663495678317 7.9958e-05 deg
i 2.793528698275815 4.0856e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1687  
   data-arc span      24272 days (66.45 yr)  
   first obs. used      1954-04-08  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52409  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:50:16  

Additional Information
 Jupiter MOID = 2.61171 au 
 T_jup = 3.613 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.12794969753191E-15 -2.526255412148124E-15 4.976250323596516E-13 -3.30382666034187E-15 1.31628968963889E-13 8.082089856723416E-17
q -2.526255412148124E-15 5.700216535437732E-15 -1.010496067911903E-12 7.190945758598463E-15 -2.707654855463334E-13 -1.514817480218518E-16
tp 4.976250323596516E-13 -1.010496067911903E-12 8.211154247641533E-9 4.370327947837885E-13 2.355612745913562E-9 -1.537165412718236E-12
node -3.30382666034187E-15 7.190945758598463E-15 4.370327947837885E-13 5.723689916298795E-9 -5.715967380287433E-9 -2.365935056455127E-11
peri 1.31628968963889E-13 -2.707654855463334E-13 2.355612745913562E-9 -5.715967380287433E-9 6.393331103872651E-9 2.317049628027045E-11
i 8.082089856723416E-17 -1.514817480218518E-16 -1.537165412718236E-12 -2.365935056455127E-11 2.317049628027045E-11 1.669179042027802E-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 14.8   n/a MPO344456  

19395 Barrera           Discovered 1998 Mar. 2 by the OCA-DLR Asteroid Survey at Caussols.
Luis Barrera (b. 1965) is head of the Institute for Astronomy of the Universidad Catholica del Norte in Antofagasta. His dynamism has raised this Chilean institute to international stature.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 EP1 = 1991 BW1 = 1996 RK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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