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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09701301651245343 3.5775e-08  
a 2.933545880956669 1.7025e-08 au
q 2.64895374596738 1.0394e-07 au
i 3.101439474388705 5.1805e-06 deg
node 52.1089899301917 0.00011067 deg
peri 22.16665889297883 0.00011633 deg
M 187.7287332059368 3.6176e-05 deg
tp 2459878.709439686037
(2022-Oct-26.20943969)
0.00018675 TDB
period 1835.218398114598
5.02
1.5976e-05
4.374e-08
d
yr
n .1961619392928079 1.7076e-09 deg/d
Q 3.218138015945958 1.8676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1543  
   data-arc span      10455 days (28.62 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:45:49  

Additional Information
 Earth MOID = 1.66418 au 
 Jupiter MOID = 2.00917 au 
 T_jup = 3.266 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456673.5 (2014-Jan-16.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09952217552220914 3.5759e-08  
q 2.63827699124006 1.0389e-07 au
tp 2456212.535537118939
(2012-Oct-12.03553712)
0.00017466 TDB
node 52.12866077313063 0.00011055 deg
peri 22.21733568300124 0.00011593 deg
i 3.104572258124469 5.1873e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1543  
   data-arc span      10455 days (28.62 yr)  
   first obs. used      1991-09-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50275  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:45:49  

Additional Information
 Jupiter MOID = 2.00917 au 
 T_jup = 3.266 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.278728970019441E-15 -3.67392392445875E-15 -1.565348104120945E-12 2.149236180924365E-14 -3.444871520724464E-13 -7.514968737352321E-16
q -3.67392392445875E-15 1.079376750564805E-14 4.878155431541717E-12 -6.625878436070656E-14 1.080915351255625E-12 2.47634201395797E-15
tp -1.565348104120945E-12 4.878155431541717E-12 3.050540129093015E-8 -1.037560705119067E-10 6.154842055300033E-9 5.893108433520807E-12
node 2.149236180924365E-14 -6.625878436070656E-14 -1.037560705119067E-10 1.222170817048562E-8 -1.222460493504649E-8 -3.095042330109218E-10
peri -3.444871520724464E-13 1.080915351255625E-12 6.154842055300033E-9 -1.222460493504649E-8 1.343997979118668E-8 3.102455305479382E-10
i -7.514968737352321E-16 2.47634201395797E-15 5.893108433520807E-12 -3.095042330109218E-10 3.102455305479382E-10 2.690837228144815E-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 13.1   n/a MPO385126  

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 22 CATAB v2.0f-lin.ifort 2020-May-20 09:46:02 2020-May-20 09:46

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