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JPL Small-Body Database Browser
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109289 (2001 QB123)
Classification: Main-belt Asteroid          SPK-ID: 2109289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0491695309171437 5.1363e-08  
a 2.96733847018092 2.815e-08 au
q 2.821435829529729 1.5441e-07 au
i 10.04043912279893 5.1804e-06 deg
node 119.8213424429356 3.7061e-05 deg
peri 140.4749097582014 8.0663e-05 deg
M 227.8112552196814 7.5025e-05 deg
tp 2459286.052999525651
(2021-Mar-12.55299953)
0.00039171 TDB
period 1867.020374838903
5.11
2.6567e-05
7.274e-08
d
yr
n .1928206059513747 2.7438e-09 deg/d
Q 3.113241110832111 2.9534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      8629 days (23.62 yr)  
   first obs. used      1995-06-25  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:54:52  

Additional Information
 Earth MOID = 1.81267 au 
 Jupiter MOID = 1.995 au 
 T_jup = 3.239 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456640.5 (2013-Dec-14.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04833635341942987 5.2662e-08  
q 2.82820515058452 1.5845e-07 au
tp 2457402.873493684019
(2016-Jan-15.37349368)
0.00038506 TDB
node 119.8470900414178 3.7056e-05 deg
peri 137.1953147412977 8.0456e-05 deg
i 10.03665458482402 5.1782e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      8629 days (23.62 yr)  
   first obs. used      1995-06-25  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:54:52  

Additional Information
 Jupiter MOID = 1.995 au 
 T_jup = 3.239 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.773310397618287E-15 -8.221419860905336E-15 -6.916300924835131E-12 1.378692443815966E-14 -1.270107397335982E-12 1.100009982864044E-15
q -8.221419860905336E-15 2.510757335438207E-14 2.308463747491179E-11 -4.864657084793077E-14 4.193100138504413E-12 -3.08352369931414E-15
tp -6.916300924835131E-12 2.308463747491179E-11 1.482724438697063E-7 -2.782542212886237E-11 2.755541505311862E-8 3.666237553530747E-12
node 1.378692443815966E-14 -4.864657084793077E-14 -2.782542212886237E-11 1.373123161376496E-9 -1.356702317997723E-9 9.33456153303026E-12
peri -1.270107397335982E-12 4.193100138504413E-12 2.755541505311862E-8 -1.356702317997723E-9 6.473230751794083E-9 -8.53582409708593E-12
i 1.100009982864044E-15 -3.08352369931414E-15 3.666237553530747E-12 9.33456153303026E-12 -8.53582409708593E-12 2.681342558746131E-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 15.2   n/a MPO280506  
diameter diameter 2.931 km 0.953 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109289 (2001 QB123)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QB123 = 1995 MD3 = 2004 CT17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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