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213953 (2003 XJ16)
Classification: Main-belt Asteroid          SPK-ID: 2213953
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359708436264599 3.7737e-08  
a 2.468682915532995 1.2793e-08 au
q 2.133014016861745 9.4521e-08 au
i 6.031296643349302 3.8546e-06 deg
node 199.0835528208324 3.5503e-05 deg
peri 160.6754045570999 3.7664e-05 deg
M 248.7367159353905 1.4156e-05 deg
tp 2459834.370581459677
(2022-Sep-11.87058146)
5.708e-05 TDB
period 1416.760350466983
3.88
1.1012e-05
3.015e-08
d
yr
n .2541008434357576 1.9751e-09 deg/d
Q 2.804351814204245 1.4532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7906 days (21.65 yr)  
   first obs. used      1999-10-19  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51654  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:30:52  

Additional Information
 Earth MOID = 1.13021 au 
 Jupiter MOID = 2.65862 au 
 T_jup = 3.465 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457802.5 (2017-Feb-18.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1349528266696678 3.7817e-08  
q 2.137558735853638 9.4649e-08 au
tp 2458415.998090851657
(2018-Oct-24.49809085)
5.367e-05 TDB
node 199.0996389042948 3.5495e-05 deg
peri 160.2804949447568 3.7678e-05 deg
i 6.029195179429632 3.8551e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7906 days (21.65 yr)  
   first obs. used      1999-10-19  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51654  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:30:52  

Additional Information
 Jupiter MOID = 2.65862 au 
 T_jup = 3.465 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.430108140539973E-15 -3.554636636269083E-15 -5.512730225989366E-13 -1.454538483934874E-14 -1.041746413758046E-13 1.634426767115631E-16
q -3.554636636269083E-15 8.958476726829081E-15 1.512606343719837E-12 3.474369862631796E-14 2.80665840206863E-13 -3.003567555005337E-16
tp -5.512730225989366E-13 1.512606343719837E-12 2.880464895469846E-9 7.343629609461317E-12 6.8916455753878E-10 -7.837523818620118E-13
node -1.454538483934874E-14 3.474369862631796E-14 7.343629609461317E-12 1.259917728391688E-9 -1.251067698747602E-9 -3.226438580392789E-11
peri -1.041746413758046E-13 2.80665840206863E-13 6.8916455753878E-10 -1.251067698747602E-9 1.419602478937905E-9 3.189254809362615E-11
i 1.634426767115631E-16 -3.003567555005337E-16 -7.837523818620118E-13 -3.226438580392789E-11 3.189254809362615E-11 1.486176095615441E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.43   n/a E2021B55  

213953 (2003 XJ16)          Discovered 2003-Dec-14 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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