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19402 (1998 EG14)
Classification: Mars-crossing Asteroid          SPK-ID: 2019402
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2690977187578878 2.5396e-08  
a 2.241435100241433 4.929e-09 au
q 1.638270028022606 5.7738e-08 au
i 3.314293429938875 2.7381e-06 deg
node 121.4616069954981 6.6578e-05 deg
peri 318.0560091816852 6.7226e-05 deg
M 345.6296398450226 7.8791e-06 deg
tp 2459249.427478152003
(2021-Feb-03.92747815)
2.6826e-05 TDB
period 1225.709860070561
3.36
4.0431e-06
1.107e-08
d
yr
n .2937073541851704 9.6881e-10 deg/d
Q 2.844600172460261 6.2554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1882  
   data-arc span      20945 days (57.34 yr)  
   first obs. used      1963-11-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:53:42  

Additional Information
 Earth MOID = .655422 au 
 Jupiter MOID = 2.42063 au 
 T_jup = 3.584 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2692067383694094 2.5657e-08  
q 1.638082942108551 5.8411e-08 au
tp 2458021.154719289894
(2017-Sep-24.65471929)
2.7024e-05 TDB
node 121.5479665989685 6.6771e-05 deg
peri 317.5430283002148 6.7412e-05 deg
i 3.309990639522105 2.7334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1882  
   data-arc span      20945 days (57.34 yr)  
   first obs. used      1963-11-19  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:53:42  

Additional Information
 Jupiter MOID = 2.42063 au 
 T_jup = 3.584 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.58264762752851E-16 -1.49596344405803E-15 -3.043549903963587E-13 -6.306562796712158E-15 -1.076164513733822E-13 -1.773410845136336E-15
q -1.49596344405803E-15 3.411789267065554E-15 6.754004775445992E-13 1.451914658473306E-14 2.371755515058898E-13 4.071914877279445E-15
tp -3.043549903963587E-13 6.754004775445992E-13 7.303139505427956E-10 1.884636337686684E-11 2.640691455462508E-10 2.064154453125605E-12
node -6.306562796712158E-15 1.451914658473306E-14 1.884636337686684E-11 4.458402207839022E-9 -4.443822361651231E-9 3.012266764479927E-11
peri -1.076164513733822E-13 2.371755515058898E-13 2.640691455462508E-10 -4.443822361651231E-9 4.544314365069567E-9 -2.930873436016657E-11
i -1.773410845136336E-15 4.071914877279445E-15 2.064154453125605E-12 3.012266764479927E-11 -2.930873436016657E-11 7.471691291370093E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.95   n/a E2021B10  
rotation period rot_per 2.825 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]

19402 (1998 EG14)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EG14 = 1963 WB = 1995 HZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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