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101926 (1999 RT18)
Classification: Main-belt Asteroid          SPK-ID: 2101926
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2841666541822056 5.255e-08  
a 3.117498226375269 2.1359e-08 au
q 2.231609185967248 1.6695e-07 au
i 9.032309509276544 5.9458e-06 deg
node 339.0026603215567 3.0821e-05 deg
peri 22.95374610100136 3.2223e-05 deg
M 270.7449879418444 1.4265e-05 deg
tp 2459498.968663906932
(2021-Oct-11.46866391)
8.3757e-05 TDB
period 2010.516999197454
5.50
2.0662e-05
5.657e-08
d
yr
n .1790584213631134 1.8402e-09 deg/d
Q 4.00338726678329 2.7429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      7652 days (20.95 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54604  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:45  

Additional Information
 Earth MOID = 1.23161 au 
 Jupiter MOID = 1.48796 au 
 T_jup = 3.135 
[ 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 14.1   n/a MPO469026  
diameter diameter 5.314 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101926 (1999 RT18)          Discovered 1999-Sep-07 by LINEAR at Socorro
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
1969-Mar-13 22:22 00:01 Jupiter 1.50543222213373 1.50543150659902 1.50543293766939 2.01685557384446 1.71534785435632 2440294.432129242 1.44136513412585 327.014170205864 51.7866762387626 78.5942070502543 1970356.54697418 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
1979-Jul-21 19:15 00:01 Jupiter 1.74076626721521 1.74076517658646 1.74076735787176 2.46921658367731 2.26359669602967 2444076.301985657 1.1554259449149 446.42417337053 10.8337345125311 -84.0382730720402 1606156.3981021 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2041-Dec-27 01:24 00:01 Jupiter 1.94503514864685 1.94503438760633 1.9450359096929 1.40322871873035 1.04789897752301 2466880.558628004 1.17095950789877 323.116075810865 142.112937300778 -71.9476903202316 1792546.30283695 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2052-Feb-26 02:26 00:01 Jupiter 1.49552710283623 1.49552651330176 1.49552769237112 1.99700976896298 1.689765340687 2470593.601499908 1.35748617185307 298.420896966601 55.6336216470984 78.5796766573237 2289631.47102827 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2062-Jun-26 12:34 00:02 Jupiter 1.80884007939027 1.80883880290716 1.80884135589116 2.60081270430311 2.41406090872847 2474367.023924078 1.94289624808603 348.705377754765 13.2593857917023 -81.356222274775 1680736.20739685 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2124-Dec-06 06:13 00:05 Jupiter 1.88120362365035 1.88120110601512 1.88120614191563 1.17356254866152 0.690462021383885 2497174.758973044 4.70298466648889 2785.25939464164 501.263532540606 -63.714545024011 1492229.82054288 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2135-Feb-14 04:19 00:04 Jupiter 1.50398809807357 1.50398752740354 1.50398866874369 1.97302768721079 1.66327075742218 2500896.679728740 4.13412260468714 701.003410600394 63.7871509929846 82.9288143158733 1876490.20722231 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
2145-Jun-07 00:52 00:05 Jupiter 1.87642824400934 1.87642481565957 1.87643167242555 2.7667184007815 2.59844717436022 2504662.536276276 5.04470961960365 613.930269546555 17.7207500194943 -77.4059253886794 1547176.02949166 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 19:57:47 2020-Nov-12 19:57
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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