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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09701297126924371 3.6266e-08  
a 2.933545867581327 1.742e-08 au
q 2.648953866612651 1.0562e-07 au
i 3.101439326175654 5.2294e-06 deg
node 52.1089090519878 0.00011631 deg
peri 22.16672520087829 0.00012198 deg
M 187.7287476336368 3.6782e-05 deg
tp 2459878.709360129870
(2022-Oct-26.20936013)
0.00018972 TDB
period 1835.218385563232
5.02
1.6346e-05
4.475e-08
d
yr
n .1961619406343924 1.7472e-09 deg/d
Q 3.218137868550003 1.9109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      10102 days (27.66 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:44  

Additional Information
 Earth MOID = 1.66418 au 
 Jupiter MOID = 2.00917 au 
 T_jup = 3.266 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456524.5 (2013-Aug-20.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09962532499353971 3.624e-08  
q 2.63827221196552 1.0571e-07 au
tp 2456212.781929578516
(2012-Oct-12.28192958)
0.000178 TDB
node 52.13135460123439 0.00011618 deg
peri 22.26576797303056 0.00012156 deg
i 3.104540428432454 5.2361e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      10102 days (27.66 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:44  

Additional Information
 Jupiter MOID = 2.00917 au 
 T_jup = 3.266 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.313332804073297E-15 -3.78731667663753E-15 -1.507709324008592E-12 2.491091127216537E-14 -3.347001342055353E-13 -7.928717851080552E-16
q -3.78731667663753E-15 1.117369548110809E-14 4.662034680198535E-12 -7.596313855815594E-14 1.041513238953909E-12 2.564691919968593E-15
tp -1.507709324008592E-12 4.662034680198535E-12 3.16850032283612E-8 -1.265892297183683E-10 6.432930188458048E-9 6.185465056731139E-12
node 2.491091127216537E-14 -7.596313855815594E-14 -1.265892297183683E-10 1.349799227048722E-8 -1.350363129933893E-8 -3.238691968776124E-10
peri -3.347001342055353E-13 1.041513238953909E-12 6.432930188458048E-9 -1.350363129933893E-8 1.477711171948255E-8 3.246489119158667E-10
i -7.928717851080552E-16 2.564691919968593E-15 6.185465056731139E-12 -3.238691968776124E-10 3.246489119158667E-10 2.741653725745256E-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 21 CATAB v2.0e-lin.ifort 2019-May-30 04:38:51 2019-May-30 04:38

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