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4482 Frerebasile (1986 RB)
Classification: Main-belt Asteroid          SPK-ID: 2004482
[ 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2590836562388034 5.2557e-08  
a 2.342335001263781 1.0377e-08 au
q 1.735474285000239 1.2178e-07 au
i 24.92611110350473 7.1891e-06 deg
node 334.272711239738 9.517e-06 deg
peri 37.23016190029065 1.4366e-05 deg
M 185.3468235550445 1.3691e-05 deg
tp 2459835.751832953192
(2022-Sep-13.25183295)		 5.2655e-05 TDB
period 1309.398801202017
3.58		 8.7013e-06
2.382e-08		 d
yr
n .27493533648383 1.827e-09 deg/d
Q 2.949195717527324 1.3065e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1614  
   data-arc span      16041 days (43.92 yr)  
   first obs. used      1977-02-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:45  

Additional Information
 Earth MOID = .768063 au 
 Jupiter MOID = 2.61148 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457018.5 (2014-Dec-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2591144899986383 5.2804e-08  
q 1.735420655515097 1.2258e-07 au
tp 2457215.098535644919
(2015-Jul-11.59853564)		 4.2185e-05 TDB
node 334.3655555854032 9.5023e-06 deg
peri 36.87615751192484 1.4351e-05 deg
i 24.95437067456351 7.1917e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1614  
   data-arc span      16041 days (43.92 yr)  
   first obs. used      1977-02-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:45  

Additional Information
 Jupiter MOID = 2.61148 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.788313417813144E-15 -6.460314733973631E-15 -4.293109136639114E-13 -6.097822043670809E-17 -2.133327692590022E-13 2.61232273727517E-15
q -6.460314733973631E-15 1.502513134360154E-14 1.161738198427621E-12 -8.188516638974844E-16 5.294665878776431E-13 -8.089205156473458E-15
tp -4.293109136639114E-13 1.161738198427621E-12 1.779598198118651E-9 -8.025320080714914E-12 4.535726374745271E-10 -2.034699841143379E-11
node -6.097822043670809E-17 -8.188516638974844E-16 -8.025320080714914E-12 9.029369842584574E-11 -8.298944916699887E-11 4.190107821891133E-12
peri -2.133327692590022E-13 5.294665878776431E-13 4.535726374745271E-10 -8.298944916699887E-11 2.059572523700645E-10 -8.426069184232662E-12
i 2.61232273727517E-15 -8.089205156473458E-15 -2.034699841143379E-11 4.190107821891133E-12 -8.426069184232662E-12 5.172109587616187E-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 13.08   n/a E2021B10  
diameter diameter 7.064 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4482 Frerebasile (1986 RB)          Discovered 1986-Sep-01 by Maury, A. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 RB = 1977 DB 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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