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48465 (1991 RS20)
Classification: Main-belt Asteroid          SPK-ID: 2048465
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09571079489256065 3.5518e-08  
a 2.936658363768744 1.7188e-08 au
q 2.655588457444551 1.0336e-07 au
i 3.098004843498074 5.0606e-06 deg
node 52.04006881377083 0.00010731 deg
peri 22.2053594790077 0.00011298 deg
M 226.8983393257822 3.6038e-05 deg
tp 2459880.109653066392
(2022-Oct-27.60965307)
0.00018606 TDB
period 1838.139913992014
5.03
1.6137e-05
4.418e-08
d
yr
n .1958501620359047 1.7194e-09 deg/d
Q 3.217728270092937 1.8833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      10565 days (28.93 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4989  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:15  

Additional Information
 Earth MOID = 1.67032 au 
 Jupiter MOID = 2.00805 au 
 T_jup = 3.265 
[ 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 13.13   n/a E2021B10  

48465 (1991 RS20)          Discovered 1991-Sep-14 by Holt, H. E. at Palomar
Reference: 20021120/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
2048-Nov-17 13:49 00:01 Europ 0.032989430165014 0.0329818999526532 0.0329969606290302 2.36977870019571 2.36977856424261 2469398.075774598 1.35436682862109 401.545837965301 37.4351085899973 -21.1276549253339 48786.7042027988 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 23:37:19 2020-Nov-12 23:37

Alternate Designations
 1991 RS20 = 1999 FP26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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