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66966 (1999 XJ52)
Classification: Main-belt Asteroid          SPK-ID: 2066966
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09597761467520684 6.0184e-08  
a 3.125443958028292 2.3848e-08 au
q 2.8254713021357 1.8661e-07 au
i 12.41569270330829 3.7987e-06 deg
node 254.0519258419501 3.213e-05 deg
peri 290.0395368419033 4.0249e-05 deg
M 212.9002747491908 2.8388e-05 deg
tp 2460221.160820329048
(2023-Oct-03.66082033)
0.00016485 TDB
period 2018.208360432163
5.53
2.3099e-05
6.324e-08
d
yr
n .1783760324543064 2.0416e-09 deg/d
Q 3.425416613920885 2.6137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      7703 days (21.09 yr)  
   first obs. used      1999-12-07  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:44:11  

Additional Information
 Earth MOID = 1.85623 au 
 Jupiter MOID = 1.71887 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09253457346585685 6.057e-08  
q 2.839795695569912 1.8699e-07 au
tp 2458206.928635822320
(2018-Mar-29.42863582)
0.00015599 TDB
node 254.1105654654909 3.212e-05 deg
peri 291.0718836467452 4.0669e-05 deg
i 12.41015421146192 3.8e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      7703 days (21.09 yr)  
   first obs. used      1999-12-07  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:44:11  

Additional Information
 Jupiter MOID = 1.71887 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.668781126514313E-15 -1.12511875702166E-14 -1.285843396313445E-12 4.114467858799239E-15 -2.908909447748587E-13 6.692635572636963E-15
q -1.12511875702166E-14 3.496396706546174E-14 5.680162136232967E-12 -1.530257250571607E-14 1.148843472937111E-12 -1.906233981997644E-14
tp -1.285843396313445E-12 5.680162136232967E-12 2.433229799355791E-8 -1.825584661734047E-11 3.990805205448934E-9 -2.76683162082111E-12
node 4.114467858799239E-15 -1.530257250571607E-14 -1.825584661734047E-11 1.031725115522541E-9 -1.010664732514211E-9 -1.232057270470031E-11
peri -2.908909447748587E-13 1.148843472937111E-12 3.990805205448934E-9 -1.010664732514211E-9 1.654003558307683E-9 1.138318921471363E-11
i 6.692635572636963E-15 -1.906233981997644E-14 -2.76683162082111E-12 -1.232057270470031E-11 1.138318921471363E-11 1.444009977547021E-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 13.97   n/a MPCxxxxx  

66966 (1999 XJ52)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XJ52 = 2000 YM21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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