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78309 Alessielisa (2002 PV65)
Classification: Main-belt Asteroid          SPK-ID: 2078309
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09274499398405731 4.8362e-08  
a 2.520837274095178 1.4015e-08 au
q 2.287042236274433 1.2341e-07 au
i 12.45165232744825 3.3914e-06 deg
node 145.2084321335631 2.5192e-05 deg
peri 301.8461669112626 3.3724e-05 deg
M 77.06771550288809 2.1543e-05 deg
tp 2458887.542308636175
(2020-Feb-08.04230864)		 8.7915e-05 TDB
period 1461.893195559362
4.00		 1.2191e-05
3.338e-08		 d
yr
n .2462560199975853 2.0536e-09 deg/d
Q 2.754632311915923 1.5314e-08 au
   Orbit Determination Parameters
   # obs. used (total)      681  
   data-arc span      9761 days (26.72 yr)  
   first obs. used      1994-06-16  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57528  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:08  

Additional Information
 Earth MOID = 1.32876 au 
 Jupiter MOID = 2.39958 au 
 T_jup = 3.418 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457503.5 (2016-Apr-25.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09116799009471097 4.8184e-08  
q 2.290910948022825 1.2268e-07 au
tp 2457425.810639790458
(2016-Feb-07.31063979)		 9.3062e-05 TDB
node 145.281434579314 2.5168e-05 deg
peri 301.9226149214626 3.4053e-05 deg
i 12.4564289991492 3.3925e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      681  
   data-arc span      9761 days (26.72 yr)  
   first obs. used      1994-06-16  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57528  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:08  

Additional Information
 Jupiter MOID = 2.39958 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.32169344043045E-15 -5.879451402771891E-15 -1.528485119728238E-12 -1.621327903587718E-14 -3.534613446164095E-13 -1.127853672510035E-14
q -5.879451402771891E-15 1.504988588863642E-14 3.475184937275552E-12 3.837141052353292E-14 7.979182039215623E-13 2.895545453395852E-14
tp -1.528485119728238E-12 3.475184937275552E-12 8.660598323398824E-9 6.575293150230756E-11 2.177154138528331E-9 8.161184809413753E-12
node -1.621327903587718E-14 3.837141052353292E-14 6.575293150230756E-11 6.334249957090999E-10 -6.014477622182383E-10 -8.821895035792015E-12
peri -3.534613446164095E-13 7.979182039215623E-13 2.177154138528331E-9 -6.014477622182383E-10 1.15961904489734E-9 1.067567048168078E-11
i -1.127853672510035E-14 2.895545453395852E-14 8.161184809413753E-12 -8.821895035792015E-12 1.067567048168078E-11 1.150922882374038E-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 15.74   n/a E2020-QM9  

78309 Alessielisa           Discovered 2002 Aug. 5 by F. Bernardi at Campo Imperatore.
Elisa Maria Alessi (b. 1981) has worked for several years in the fields of space debris dynamics, orbit determination for interplanetary missions, and trajectory design in planet-satellite systems.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-10-08Last Updated: 2015-01-12

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