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447720 (2007 EP154)
Classification: Main-belt Asteroid          SPK-ID: 2447720
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09682118798733025 6.8956e-08  
a 3.046697080562841 4.634e-08 au
q 2.751712249785216 2.2127e-07 au
i 9.901559403615407 6.6913e-06 deg
node 202.8222462074241 4.7147e-05 deg
peri 308.5434996254958 6.0549e-05 deg
M 202.8531912268218 3.8301e-05 deg
tp 2459848.401506359266
(2022-Sep-25.90150636)
0.00021346 TDB
period 1942.416423676272
5.32
4.4316e-05
1.213e-07
d
yr
n .1853361594413694 4.2284e-09 deg/d
Q 3.341681911340466 5.0827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      8500 days (23.27 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68351  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:49:31  

Additional Information
 Earth MOID = 1.77399 au 
 Jupiter MOID = 1.70001 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09357961056207097 6.9223e-08  
q 2.764246655599014 2.215e-07 au
tp 2457906.398402627497
(2017-Jun-01.89840263)
0.00020757 TDB
node 202.9212342318398 4.7029e-05 deg
peri 308.8919974947784 6.1203e-05 deg
i 9.908713282458583 6.6986e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      8500 days (23.27 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68351  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:49:31  

Additional Information
 Jupiter MOID = 1.70001 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.791876282020271E-15 -1.506094811186097E-14 -2.182833959316429E-12 -1.07887731745435E-14 -3.57679202404117E-13 -1.192861529913738E-14
q -1.506094811186097E-14 4.906044059603574E-14 8.190608565022339E-12 5.308409129600442E-14 1.259582549057416E-12 4.303479840580808E-14
tp -2.182833959316429E-12 8.190608565022339E-12 4.308536160892172E-8 9.07866053411114E-11 8.216541347069165E-9 1.181394677093871E-11
node -1.07887731745435E-14 5.308409129600442E-14 9.07866053411114E-11 2.211752052180307E-9 -2.160616638136176E-9 -2.214541709851344E-11
peri -3.57679202404117E-13 1.259582549057416E-12 8.216541347069165E-9 -2.160616638136176E-9 3.745826967937659E-9 2.381162302868043E-11
i -1.192861529913738E-14 4.303479840580808E-14 1.181394677093871E-11 -2.214541709851344E-11 2.381162302868043E-11 4.487069311412124E-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 16.5   n/a MPO446777  

447720 (2007 EP154)          Discovered 2007-Mar-12 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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