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136966 (1998 RL39)
Classification: Main-belt Asteroid          SPK-ID: 2136966
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860041629237193 4.9911e-08  
a 2.370605067883872 8.1038e-09 au
q 1.929662656609406 1.1939e-07 au
i 3.4136944146103 3.908e-06 deg
node 133.7485270171155 8.7433e-05 deg
peri 235.8605278132552 8.8162e-05 deg
M 22.34930005453246 9.8702e-06 deg
tp 2459117.734629197236
(2020-Sep-25.23462920)
3.6619e-05 TDB
period 1333.17524111689
3.65
6.8361e-06
1.872e-08
d
yr
n .2700320174701144 1.3846e-09 deg/d
Q 2.811547479158338 9.6111e-09 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1998-08-30  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:19:44  

Additional Information
 Earth MOID = .929867 au 
 Jupiter MOID = 2.65345 au 
 T_jup = 3.519 
[ show covariance matrix ]

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 16.48   n/a E2021B55  

136966 (1998 RL39)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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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
2091-Mar-24 04:37 < 00:01 Hebe 0.0171839387928652 0.0171720882469658 0.0171957895170906 3.47962941450252 3.479629310534 2484864.692329709 0.913316178255128 596.868101469096 29.8025909443696 8.42102553699465 13317.1461670188 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 18:19:46 2021-Apr-13 18:19
2146-Jun-22 06:41 < 00:01 Juno 0.0363513174213519 0.0363498259271629 0.0363528140049151 4.48023242670252 4.48023235200171 2505042.778551065 0.895874273167379 907.641718211535 49.3063072290374 86.4756058182341 109996.205197624 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 18:19:46 2021-Apr-13 18:19

Alternate Designations
 1998 RL39 = 2000 DW50 = 2000 EM206 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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