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109708 (2001 RL44)
Classification: Main-belt Asteroid          SPK-ID: 2109708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1829233568476651 5.4612e-08  
a 2.601812259775033 1.266e-08 au
q 2.125880027329575 1.3815e-07 au
i 13.65890024066653 4.3042e-06 deg
node 148.7251830913168 1.7975e-05 deg
peri 259.1133429118798 2.1644e-05 deg
M 151.3748315620048 1.4012e-05 deg
tp 2458355.939729871725
(2018-Aug-25.43972987)
5.731e-05 TDB
period 1532.894833650944
4.20
1.1189e-05
3.063e-08
d
yr
n .2348497705759609 1.7142e-09 deg/d
Q 3.077744492220492 1.4976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      6826 days (18.69 yr)  
   first obs. used      2001-08-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4777  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:07:54  

Additional Information
 Earth MOID = 1.18325 au 
 Jupiter MOID = 2.46269 au 
 T_jup = 3.351 
[ 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 15.4   n/a MPO453558  

109708 (2001 RL44)          Discovered 2001-Sep-12 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1943-Jun-02 05:05 00:03 Hebe 0.044513513875422 0.0445021700644157 0.0445248615414788 1.98873667716424 1.98873660693978 2430877.711752873 3.04668208194861 864.328467064947 46.0923352953271 49.2720162843109 109320.476611972 T 19 CATAB v2.0f-lin.ifort 2020-May-20 19:08:15 2020-May-20 19:08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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