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181443 (2006 SJ393)
Classification: Main-belt Asteroid          SPK-ID: 2181443
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564900944419671 3.6845e-08  
a 2.350104024512628 1.2305e-08 au
q 1.9823360237682 8.5533e-08 au
i 3.346445141364197 4.5632e-06 deg
node 69.13045528023598 8.508e-05 deg
peri 192.082069094646 8.6867e-05 deg
M 172.4882138965689 1.84e-05 deg
tp 2458765.998708435197
(2019-Oct-09.49870844)
6.5901e-05 TDB
period 1315.918692853043
3.60
1.0335e-05
2.83e-08
d
yr
n .2735731333213939 2.1486e-09 deg/d
Q 2.717872025257056 1.4231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      2001-03-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:38  

Additional Information
 Earth MOID = .967083 au 
 Jupiter MOID = 2.34088 au 
 T_jup = 3.539 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457664.5 (2016-Oct-03.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561801805929203 3.6854e-08  
q 1.983433009796538 8.5531e-08 au
tp 2457450.354543934778
(2016-Mar-02.85454393)
6.4542e-05 TDB
node 69.1420522548369 8.5041e-05 deg
peri 192.2202321459218 8.6837e-05 deg
i 3.347180175747878 4.5648e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      2001-03-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:30:38  

Additional Information
 Jupiter MOID = 2.34088 au 
 T_jup = 3.539 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.358195222861683E-15 -3.12924726187821E-15 -8.33395785771269E-13 -3.94945173486128E-15 -2.029388753164464E-13 4.515546166324297E-16
q -3.12924726187821E-15 7.315489944616223E-15 2.008173842052065E-12 9.716378422166454E-15 4.947435577351472E-13 -9.962965032835362E-16
tp -8.33395785771269E-13 2.008173842052065E-12 4.165622924535986E-9 4.765879494646417E-12 1.159546828047886E-9 2.768118295102697E-13
node -3.94945173486128E-15 9.716378422166454E-15 4.765879494646417E-12 7.231960887247058E-9 -7.21831539033766E-9 -1.558389736068284E-10
peri -2.029388753164464E-13 4.947435577351472E-13 1.159546828047886E-9 -7.21831539033766E-9 7.54072960779105E-9 1.556872137342556E-10
i 4.515546166324297E-16 -9.962965032835362E-16 2.768118295102697E-13 -1.558389736068284E-10 1.556872137342556E-10 2.0837395400332E-11

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 16.78   n/a MPCxxxxx  

181443 (2006 SJ393)          Discovered 2006-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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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
1970-Jun-15 04:58 00:08 Psych 0.0425182239326765 0.0425056498250688 0.0425307981331288 3.15854555432077 3.1585454642278 2440752.707026141 7.91295401536545 633.701354526337 49.2550140864767 8.96233398552967 22393.7185262108 T 13 CATAB v2.0f-lin.ifort 2021-Apr-13 21:30:39 2021-Apr-13 21:30
2144-Jul-21 09:39 00:07 David 0.0320241277467819 0.0320171080686423 0.0320312124845833 6.00061343313473 6.00061335451888 2504341.901749653 7.30639658983636 2335.77409277433 60.0084771184819 81.4684475403 78918.4743845198 T 13 CATAB v2.0f-lin.ifort 2021-Apr-13 21:30:39 2021-Apr-13 21:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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