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(2011 XL1)
Classification: Amor [NEO]          SPK-ID: 3590304
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2455897.5 (2011-Dec-02.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5069068242519915 0.009235  
a 2.634696619309987 0.059909 au
q 1.299150923148103 0.0052475 au
i 11.20239931731641 0.18671 deg
node 89.41081168389958 0.11644 deg
peri 310.3776104568769 0.18124 deg
M 8.36882913239741 0.26837 deg
tp 2455861.187466677491
(2011-Oct-26.68746668)
0.14538 TDB
period 1562.047902913555
4.28
53.278
0.1459
d
yr
n .2304666837223895 0.0078606 deg/d
Q 3.97024231547187 0.090277 au
  Orbit Determination Parameters
   # obs. used (total)      11  
   data-arc span      4 days  
   first obs. used      2011-12-01  
   last obs. used      2011-12-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .37678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:51:20  

Additional Information
 Earth MOID = .345845 au 
 Jupiter MOID = 1.57184 au 
 T_jup = 3.178 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.225   .31445 4 autocmod 2.9c

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2011-Nov-15 06:59 07:17 Earth 0.357303972858713 0.342505270107057 0.383303212200947 5.28638944941145 5.28497862387155 2455880.790969357 437.070142414583 4671190.39489563 633823.762339658 -82.3223769817341 44.2061436160645 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 05:51:21 2021-Apr-15 05:51
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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