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193954 (2001 RW65)
Classification: Main-belt Asteroid          SPK-ID: 2193954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705232789927612 7.9066e-08  
a 2.367567964141151 1.3013e-08 au
q 1.963842511657586 1.9244e-07 au
i 4.906171789955224 6.8705e-06 deg
node 301.4662619410171 7.7519e-05 deg
peri 51.40201159597894 8.0119e-05 deg
M 110.3403340398297 1.887e-05 deg
tp 2458792.665554999196
(2019-Nov-05.16555500)
6.8258e-05 TDB
period 1330.614063097646
3.64
1.097e-05
3.003e-08
d
yr
n .2705517775469217 2.2305e-09 deg/d
Q 2.771293416624716 1.5232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2001-06-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:53:08  

Additional Information
 Earth MOID = .96083 au 
 Jupiter MOID = 2.6682 au 
 T_jup = 3.522 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456773.5 (2014-Apr-26.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716541966655861 7.9e-08  
q 1.960313180338238 1.9234e-07 au
tp 2456132.966999727952
(2012-Jul-24.46699973)
6.138e-05 TDB
node 301.5706984401834 7.7582e-05 deg
peri 51.37604152368279 8.0126e-05 deg
i 4.904815853487585 6.8714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2001-06-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:53:08  

Additional Information
 Jupiter MOID = 2.6682 au 
 T_jup = 3.522 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.240934382508941E-15 -1.517638444652557E-14 -1.076682286548441E-12 -6.392917330484229E-15 -5.185545284180658E-13 -1.991406313768737E-14
q -1.517638444652557E-14 3.699586549301318E-14 2.610549265970897E-12 1.396537322731242E-14 1.274441273282255E-12 4.874840387417893E-14
tp -1.076682286548441E-12 2.610549265970897E-12 3.767508295794461E-9 -3.010153608895047E-11 1.255147559002488E-9 -2.623581133679537E-12
node -6.392917330484229E-15 1.396537322731242E-14 -3.010153608895047E-11 6.018962099390376E-9 -6.006226839308792E-9 1.889537591516762E-10
peri -5.185545284180658E-13 1.274441273282255E-12 1.255147559002488E-9 -6.006226839308792E-9 6.420161848108651E-9 -1.885143467339616E-10
i -1.991406313768737E-14 4.874840387417893E-14 -2.623581133679537E-12 1.889537591516762E-10 -1.885143467339616E-10 4.72158378381078E-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 16.9   n/a MPO494073  

193954 (2001 RW65)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ 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
1941-Sep-25 02:17 00:01 Iris 0.0441996290167843 0.0441967359214589 0.0442025240370859 3.88508032331403 3.88508028983642 2430262.594974669 1.01464386201348 519.335725577098 56.0298884860329 -75.0779500502706 114012.122413458 T 13 CATAB v2.0f-lin.ifort 2021-Feb-24 19:53:08 2021-Feb-24 19:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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