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66991 (1999 XE105)
Classification: Main-belt Asteroid          SPK-ID: 2066991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205400393039495 5.2002e-08  
a 2.745830212527408 1.2267e-08 au
q 2.181835607654558 1.4331e-07 au
i 9.839371387879766 4.7795e-06 deg
node 162.1002764354715 2.671e-05 deg
peri 229.29282559884 2.7652e-05 deg
M 243.9444766154175 8.4443e-06 deg
tp 2459736.262434683681
(2022-Jun-05.76243468)
4.0695e-05 TDB
period 1661.91552854388
4.55
1.1137e-05
3.049e-08
d
yr
n .2166175078196791 1.4517e-09 deg/d
Q 3.309824817400258 1.4787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      9448 days (25.87 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:26:34  

Additional Information
 Earth MOID = 1.19948 au 
 Jupiter MOID = 2.18882 au 
 T_jup = 3.296 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO385243  

66991 (1999 XE105)          Discovered 1999-Dec-09 by Juels, C. W. at Fountain Hills
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE105 = 1994 PL14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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