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(2012 XL16)
Classification: Aten [NEO]          SPK-ID: 3619461
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783148398691501 0.00035526  
a .9843922000281199 0.00010471 au
q .8088604625116653 0.00026429 au
i 3.154096120151694 0.0074899 deg
node 258.776890727456 0.019631 deg
peri 59.05187954380779 0.0080356 deg
M 172.9208570660031 0.29239 deg
tp 2459029.145485318126
(2020-Jun-28.64548532)
0.26241 TDB
period 356.7390674100633
0.98
0.05692
0.0001558
d
yr
n 1.009140946108345 0.00016101 deg/d
Q 1.159923937544574 0.00012338 au
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      10 days  
   first obs. used      2012-12-06  
   last obs. used      2012-12-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .39016  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 07:18:14  

Additional Information
 Earth MOID = .0176318 au 
 Jupiter MOID = 4.02584 au 
 T_jup = 6.141 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456272.5 (2012-Dec-11.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788492136550655 0.00036999  
q .8092380699267118 0.0003322 au
tp 2456172.236996037330
(2012-Sep-01.73699604)
0.031157 TDB
node 259.6752036281403 0.0022575 deg
peri 58.53269743125254 0.0032619 deg
i 3.127504836917886 0.0066397 deg
  Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      10 days  
   first obs. used      2012-12-06  
   last obs. used      2012-12-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .39016  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 07:18:14  

Additional Information
 Jupiter MOID = 4.02584 au 
 T_jup = 6.141 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.368896675716711E-7 -1.22896611912228E-7 1.15204666410313E-5 -8.34976281304369E-7 -1.196949688154515E-6 2.452959699731141E-6
q -1.22896611912228E-7 1.103536859707953E-7 -1.034738244539946E-5 7.49484225599763E-7 1.073550605432728E-6 -2.200635957629823E-6
tp 1.15204666410313E-5 -1.034738244539946E-5 .0009707404036811216 -7.023688801346481E-5 -.0001003641825054694 .0002060518390346261
node -8.34976281304369E-7 7.49484225599763E-7 -7.023688801346481E-5 5.096099331460392E-6 7.307645081710615E-6 -1.497450919601922E-5
peri -1.196949688154515E-6 1.073550605432728E-6 -.0001003641825054694 7.307645081710615E-6 1.064022304161926E-5 -2.155107306224105E-5
i 2.452959699731141E-6 -2.200635957629823E-6 .0002060518390346261 -1.497450919601922E-5 -2.155107306224105E-5 4.408581417131677E-5

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 25.5   n/a MPO252137  

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