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123928 (2001 ED6)
Classification: Main-belt Asteroid          SPK-ID: 2123928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140799126387885 3.9487e-08  
a 2.76974658235316 2.0867e-08 au
q 2.453774134206728 1.1431e-07 au
i 12.75484537222882 5.9344e-06 deg
node 15.19012797497181 1.99e-05 deg
peri 257.5907868171928 3.4231e-05 deg
M 336.0788213254783 2.6006e-05 deg
tp 2459112.376418226333
(2020-Sep-19.87641823)
0.00012137 TDB
period 1683.675838447594
4.61
1.9027e-05
5.209e-08
d
yr
n .213817880959753 2.4163e-09 deg/d
Q 3.085719030499591 2.3248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      7978 days (21.84 yr)  
   first obs. used      1998-09-17  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:31:27  

Additional Information
 Earth MOID = 1.47717 au 
 Jupiter MOID = 2.08667 au 
 T_jup = 3.293 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456990.5 (2014-Nov-29.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128496635052763 3.9559e-08  
q 2.457962272162011 1.1414e-07 au
tp 2457426.679375819404
(2016-Feb-08.17937582)
0.00012784 TDB
node 15.21601128666313 1.9899e-05 deg
peri 257.152799745939 3.4459e-05 deg
i 12.7534259275911 5.9335e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      7978 days (21.84 yr)  
   first obs. used      1998-09-17  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:31:27  

Additional Information
 Jupiter MOID = 2.08667 au 
 T_jup = 3.293 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.564895675236801E-15 -4.456922003511416E-15 -3.856597140876408E-13 -6.914939025502101E-15 -6.384600094798911E-14 -1.093419653512387E-15
q -4.456922003511416E-15 1.302861068793649E-14 2.782382060650989E-13 2.030095864882556E-14 -1.571030435679424E-14 4.717689150910199E-15
tp -3.856597140876408E-13 2.782382060650989E-13 1.634368199587026E-8 -4.765986542107387E-12 3.612163106294807E-9 -9.380585404812501E-12
node -6.914939025502101E-15 2.030095864882556E-14 -4.765986542107387E-12 3.959737394614139E-10 -3.866152115040564E-10 2.884898527690003E-12
peri -6.384600094798911E-14 -1.571030435679424E-14 3.612163106294807E-9 -3.866152115040564E-10 1.187431421260722E-9 -4.870497196361411E-12
i -1.093419653512387E-15 4.717689150910199E-15 -9.380585404812501E-12 2.884898527690003E-12 -4.870497196361411E-12 3.520627986497372E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO432733  
rotation period rot_per 3.692 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

123928 (2001 ED6)          Discovered 2001-Mar-02 by LONEOS at Anderson Mesa
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 2001 ED6 = 1998 SQ44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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