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161913 (2007 EA)
Classification: Main-belt Asteroid          SPK-ID: 2161913
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442240169029711 4.1387e-08  
a 2.230129686627313 1.0899e-08 au
q 1.908491425007358 9.1667e-08 au
i 6.842399103545816 6.1383e-06 deg
node 146.8332310950814 4.6069e-05 deg
peri 122.9823814911129 5.3467e-05 deg
M 241.9368028149294 2.6938e-05 deg
tp 2459399.438218833268
(2021-Jul-03.93821883)
9.1235e-05 TDB
period 1216.448158310059
3.33
8.9174e-06
2.441e-08
d
yr
n .2959435612119525 2.1695e-09 deg/d
Q 2.551767948247269 1.2471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      8952 days (24.51 yr)  
   first obs. used      1994-03-13  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55762  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 11:49:30  

Additional Information
 Earth MOID = .902552 au 
 Jupiter MOID = 2.55649 au 
 T_jup = 3.620 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456611.5 (2013-Nov-15.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442336307738785 4.1304e-08  
q 1.908215014498365 9.1421e-08 au
tp 2456967.004942473854
(2014-Nov-05.50494247)
9.1492e-05 TDB
node 146.8703433793674 4.6061e-05 deg
peri 123.0423222132873 5.3481e-05 deg
i 6.843131219598815 6.1399e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      245  
   data-arc span      8952 days (24.51 yr)  
   first obs. used      1994-03-13  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55762  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 11:49:30  

Additional Information
 Jupiter MOID = 2.55649 au 
 T_jup = 3.620 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.706020705228958E-15 -3.756719598346573E-15 1.992805551062698E-13 -1.385200277800659E-14 3.370389927298613E-15 7.53116527370028E-16
q -3.756719598346573E-15 8.35782570623879E-15 -5.398228172327931E-13 2.960889541963518E-14 -4.438821171456323E-14 -1.314806625665255E-15
tp 1.992805551062698E-13 -5.398228172327931E-13 8.370798021700762E-9 -8.690633047957435E-11 2.514344643566199E-9 -2.052131911647179E-11
node -1.385200277800659E-14 2.960889541963518E-14 -8.690633047957435E-11 2.121600972763372E-9 -2.129813960026366E-9 1.155099142701882E-10
peri 3.370389927298613E-15 -4.438821171456323E-14 2.514344643566199E-9 -2.129813960026366E-9 2.860180612670458E-9 -1.206823488529557E-10
i 7.53116527370028E-16 -1.314806625665255E-15 -2.052131911647179E-11 1.155099142701882E-10 -1.206823488529557E-10 3.769791179606615E-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 17.5   n/a MPO454076  

161913 (2007 EA)          Discovered 2007-Mar-05 by Sarneczky, K. at Piszkesteto
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2007 EA = 1997 BJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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