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109741 (2001 RA64)
Classification: Main-belt Asteroid          SPK-ID: 2109741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .22658493228133 3.7419e-08  
a 3.136981543704565 2.3802e-08 au
q 2.426188793056484 1.238e-07 au
i 20.51344450086021 6.0498e-06 deg
node 341.4501420160913 1.1234e-05 deg
peri 256.3912670806002 1.7517e-05 deg
M 307.8023496139142 1.5125e-05 deg
tp 2459690.748884858866
(2022-Apr-21.24888486)
8.6802e-05 TDB
period 2029.39400079643
5.56
2.3097e-05
6.324e-08
d
yr
n .1773928571084368 2.0189e-09 deg/d
Q 3.847774294352646 2.9195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      11166 days (30.57 yr)  
   first obs. used      1990-10-10  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53252  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:20:27  

Additional Information
 Earth MOID = 1.51258 au 
 Jupiter MOID = 1.64778 au 
 T_jup = 3.075 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457505.5 (2016-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2276364161445746 3.7356e-08  
q 2.422322308198598 1.2368e-07 au
tp 2457660.054605775500
(2016-Sep-28.55460578)
7.8007e-05 TDB
node 341.4990016643399 1.1232e-05 deg
peri 256.0842583012861 1.7466e-05 deg
i 20.51942233717142 6.0509e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      11166 days (30.57 yr)  
   first obs. used      1990-10-10  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53252  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:20:27  

Additional Information
 Jupiter MOID = 1.64778 au 
 T_jup = 3.075 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.3955017129714E-15 -4.573307193857926E-15 -6.43241388299304E-13 1.162275436070909E-15 -4.70772179546293E-14 4.976587185446935E-16
q -4.573307193857926E-15 1.529777512244648E-14 2.387087358836583E-12 -3.242014141772133E-15 1.947851609969679E-13 -1.706619954885778E-15
tp -6.43241388299304E-13 2.387087358836583E-12 6.085078376762504E-9 7.302170862639146E-12 1.050088925336402E-9 2.005865841284404E-11
node 1.162275436070909E-15 -3.242014141772133E-15 7.302170862639146E-12 1.261672693119272E-10 -1.165150398613335E-10 -1.814052045616517E-11
peri -4.70772179546293E-14 1.947851609969679E-13 1.050088925336402E-9 -1.165150398613335E-10 3.050744365860978E-10 2.054004200252422E-11
i 4.976587185446935E-16 -1.706619954885778E-15 2.005865841284404E-11 -1.814052045616517E-11 2.054004200252422E-11 3.661362348757208E-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 14.62   n/a MPCxxxxx  
diameter diameter 7.372 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109741 (2001 RA64)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RA64 = 1999 CL41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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