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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09571079855469301 3.5477e-08  
a 2.936658372085378 1.7173e-08 au
q 2.655588454210761 1.032e-07 au
i 3.098004854089687 5.0553e-06 deg
node 52.04006794728577 0.00010722 deg
peri 22.20536056783097 0.00011289 deg
M 226.8983385548557 3.6037e-05 deg
tp 2459880.109659889687
(2022-Oct-27.60965989)		 0.00018606 TDB
period 1838.139921800449
5.03		 1.6124e-05
4.415e-08		 d
yr
n .1958501612039315 1.718e-09 deg/d
Q 3.217728289959994 1.8817e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      10565 days (28.93 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:08:52  

Additional Information
 Earth MOID = 1.67032 au 
 Jupiter MOID = 2.00805 au 
 T_jup = 3.265 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456723.5 (2014-Mar-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09947936918829278 3.5473e-08  
q 2.638421273204762 1.0317e-07 au
tp 2456212.514824334797
(2012-Oct-12.01482433)		 0.00017014 TDB
node 52.12886604583154 0.00010691 deg
peri 22.21889865570649 0.00011215 deg
i 3.104563339949566 5.0663e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      10565 days (28.93 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:08:52  

Additional Information
 Jupiter MOID = 2.00805 au 
 T_jup = 3.265 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.258367658721404E-15 -3.618906153386365E-15 -1.404585434690533E-12 1.852544843505026E-14 -3.083567416319653E-13 -6.218353189147345E-16
q -3.618906153386365E-15 1.064318135904065E-14 4.473153591872203E-12 -5.75777224943441E-14 9.88958347620317E-13 2.104369585697673E-15
tp -1.404585434690533E-12 4.473153591872203E-12 2.894642118703172E-8 -8.974363417305206E-11 5.816686080504542E-9 5.221880277922571E-12
node 1.852544843505026E-14 -5.75777224943441E-14 -8.974363417305206E-11 1.143066220761594E-8 -1.143184655222559E-8 -2.798029581294956E-10
peri -3.083567416319653E-13 9.88958347620317E-13 5.816686080504542E-9 -1.143184655222559E-8 1.257810641682852E-8 2.804507440525383E-10
i -6.218353189147345E-16 2.104369585697673E-15 5.221880277922571E-12 -2.798029581294956E-10 2.804507440525383E-10 2.566782440558246E-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 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 24 CATAB v2.0f-lin.ifort 2021-Apr-13 10:08:55 2021-Apr-13 10:08

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