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109301 (2001 QR128)
Classification: Main-belt Asteroid          SPK-ID: 2109301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09614309596335753 5.737e-08  
a 3.0121726069536 2.6007e-08 au
q 2.722573006945063 1.7632e-07 au
i 8.886004697734593 5.2897e-06 deg
node 245.6010250142606 4.4438e-05 deg
peri 69.07350691511266 5.5944e-05 deg
M 223.6582478300309 3.4865e-05 deg
tp 2459723.676956264758
(2022-May-24.17695626)
0.00018646 TDB
period 1909.493607877051
5.23
2.473e-05
6.771e-08
d
yr
n .1885316601820119 2.4417e-09 deg/d
Q 3.301772206962137 2.8508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      7191 days (19.69 yr)  
   first obs. used      2000-05-23  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:23:09  

Additional Information
 Earth MOID = 1.72459 au 
 Jupiter MOID = 1.94007 au 
 T_jup = 3.224 
[ show covariance matrix ]

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 14.9   n/a MPO436525  
diameter diameter 3.967 km 0.694 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109301 (2001 QR128)          Discovered 2001-Aug-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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