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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09274499458648716 4.8795e-08  
a 2.520837273381033 1.4123e-08 au
q 2.287042234107894 1.247e-07 au
i 12.45165230900912 3.4022e-06 deg
node 145.2084324499849 2.5349e-05 deg
peri 301.8461665717782 3.3869e-05 deg
M 77.06771563549144 2.1555e-05 deg
tp 2458887.542308230688
(2020-Feb-08.04230823)
8.7975e-05 TDB
period 1461.893194938137
4.00
1.2285e-05
3.363e-08
d
yr
n .2462560201022306 2.0694e-09 deg/d
Q 2.754632312654172 1.5432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      9707 days (26.58 yr)  
   first obs. used      1994-06-16  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57844  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:27:41  

Additional Information
 Earth MOID = 1.32876 au 
 Jupiter MOID = 2.39958 au 
 T_jup = 3.418 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2129-Apr-07 20:36 < 00:01 Ceres 0.0177067029735427 0.0176995776091749 0.0177138843254623 4.21240627235315 4.21240060834323 2498758.358286160 0.996666926877217 1608.40371666401 40.8383670386846 -77.359440019804 62809.7400195152 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 19:27:43 2021-Feb-24 19:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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