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185390 (2006 WG46)
Classification: Main-belt Asteroid          SPK-ID: 2185390
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07694684105922886 6.6735e-08  
a 2.777412845736083 2.8165e-08 au
q 2.563699700939368 1.9343e-07 au
i 6.979190785784621 6.308e-06 deg
node 48.54727322092411 4.7622e-05 deg
peri 319.6365362538049 5.8682e-05 deg
M 22.61973344996304 3.5023e-05 deg
tp 2458894.270761385339
(2020-Feb-14.77076139)
0.00016428 TDB
period 1690.67093499903
4.63
2.5717e-05
7.041e-08
d
yr
n .2129332163625363 3.2389e-09 deg/d
Q 2.991125990532798 3.0332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6515 days (17.84 yr)  
   first obs. used      2001-10-20  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:51:30  

Additional Information
 Earth MOID = 1.56824 au 
 Jupiter MOID = 2.38782 au 
 T_jup = 3.320 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457229.5 (2015-Jul-26.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07916899687909805 6.7285e-08  
q 2.557743753228776 1.9542e-07 au
tp 2457196.106252602695
(2015-Jun-22.60625260)
0.0001573 TDB
node 48.57715868582664 4.761e-05 deg
peri 318.2367484797923 5.7959e-05 deg
i 6.98242205383125 6.3111e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      6515 days (17.84 yr)  
   first obs. used      2001-10-20  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:51:30  

Additional Information
 Jupiter MOID = 2.38782 au 
 T_jup = 3.320 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.527235888186188E-15 -1.303904812768499E-14 1.127524412321457E-12 1.944640986973374E-14 1.069362224511453E-13 7.753727703822203E-16
q -1.303904812768499E-14 3.819082439030662E-14 -3.280507756553426E-12 -5.696007080243174E-14 -3.130088661163326E-13 -1.435807157940368E-15
tp 1.127524412321457E-12 -3.280507756553426E-12 2.474315629873526E-8 2.23626200114582E-12 5.230689060016213E-9 -5.263597187556367E-12
node 1.944640986973374E-14 -5.696007080243174E-14 2.23626200114582E-12 2.266694491328775E-9 -2.249195741500845E-9 -6.192287842752208E-11
peri 1.069362224511453E-13 -3.130088661163326E-13 5.230689060016213E-9 -2.249195741500845E-9 3.359272168300672E-9 6.033414178839371E-11
i 7.753727703822203E-16 -1.435807157940368E-15 -5.263597187556367E-12 -6.192287842752208E-11 6.033414178839371E-11 3.982945141895615E-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 16.2   n/a MPO449929  

185390 (2006 WG46)          Discovered 2006-Nov-16 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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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
2115-Oct-29 02:38 00:21 Iris 0.00348793890608282 0.00345367944570735 0.00352260857814335 3.77594203198016 3.77594159548556 2493848.610046321 20.7300811040648 2551.04448459158 58.5120296420863 47.6926289101926 6590.73074176811 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 03:51:32 2019-Sep-24 03:51
2199-Jul-19 03:54 00:19 Eunom 0.0489296186991115 0.0488939005011425 0.0489655471833116 5.06172432165213 5.06172426497295 2524427.662566813 19.1567257070648 5363.44732034175 58.9764887275603 -70.5693425546242 116968.067036925 T 13 CATAB v2.0f-lin.ifort 2019-Sep-24 03:51:32 2019-Sep-24 03:51
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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