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437908 (2001 XW266)
Classification: Amor [NEO]          SPK-ID: 2437908
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 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4515519757270498 8.74e-08  
a 2.285322055499964 1.5381e-08 au
q 1.253380366166352 1.9297e-07 au
i 4.613476215595444 5.7449e-06 deg
node 205.7522312968181 6.0558e-05 deg
peri 90.05668383055612 7.018e-05 deg
M 153.7907710637434 1.6731e-05 deg
tp 2458461.427326864629
(2018-Dec-08.92732686)
5.4495e-05 TDB
period 1261.884318456904
3.45
1.2739e-05
3.488e-08
d
yr
n .2852876406612503 2.8801e-09 deg/d
Q 3.317263744833575 2.2326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      5076 days (13.90 yr)  
   first obs. used      2001-12-09  
   last obs. used      2015-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52936  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:38  

Additional Information
 Earth MOID = .254192 au 
 Jupiter MOID = 1.95224 au 
 T_jup = 3.456 
[ 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 19.5   n/a MPO147191  

437908 (2001 XW266)          Discovered 2001-Dec-09 by Tholen, D. J. at Mauna Kea
Reference: Last Updated: 2015-07-06

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