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58398 (1995 VY4)
Classification: Main-belt Asteroid          SPK-ID: 2058398
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 .1205647277679629 3.1033e-08  
a 2.342041812500987 8.1838e-09 au
q 2.059674178955619 7.1569e-08 au
i 3.938736963887639 3.6457e-06 deg
node 147.6893126437803 5.5922e-05 deg
peri 103.7339274995599 5.8268e-05 deg
M 139.0076694471391 1.6998e-05 deg
tp 2458694.993604303883
(2019-Jul-30.49360430)
6.1399e-05 TDB
period 1309.152963821217
3.58
6.8619e-06
1.879e-08
d
yr
n .2749869648151848 1.4413e-09 deg/d
Q 2.624409446046355 9.1705e-09 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      9716 days (26.60 yr)  
   first obs. used      1994-06-07  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50073  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:30:01  

Additional Information
 Earth MOID = 1.04809 au 
 Jupiter MOID = 2.40589 au 
 T_jup = 3.551 
[ 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 16.27   n/a E2021B10  

58398 (1995 VY4)          Discovered 1995-Nov-14 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
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
1920-Sep-09 11:44 00:18 Psych 0.0455629703662739 0.0455617021431888 0.045564238607978 2.21086410395177 2.21086398384179 2422576.988832575 18.0999954854716 96.2073454158703 49.1189327458649 -61.5584196457836 126227.25115664 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:03 2021-Apr-13 11:30
2143-Dec-28 17:15 00:02 Hebe 0.0472979480840516 0.0472939928764024 0.0473019142549977 6.58713046496301 6.58713044500951 2504136.218561657 1.74025523730683 1205.85907888661 58.9940045485153 81.000001462472 118436.768015949 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 11:30:03 2021-Apr-13 11:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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