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91560 (1999 RW226)
Classification: Main-belt Asteroid          SPK-ID: 2091560
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808538344746665 4.6446e-08  
a 2.977097915519943 2.2743e-08 au
q 2.438678341891625 1.4245e-07 au
i 11.84407683728501 8.4693e-06 deg
node 299.1839177943658 2.3312e-05 deg
peri 114.412323162354 3.2788e-05 deg
M 324.0175439618121 2.3165e-05 deg
tp 2459188.032441397516
(2020-Dec-04.53244140)
0.00012149 TDB
period 1876.238765676696
5.14
2.15e-05
5.886e-08
d
yr
n .1918732341457406 2.1987e-09 deg/d
Q 3.515517489148262 2.6856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      521  
   data-arc span      8660 days (23.71 yr)  
   first obs. used      1995-12-19  
   last obs. used      2019-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44476  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:58:07  

Additional Information
 Earth MOID = 1.47895 au 
 Jupiter MOID = 1.92633 au 
 T_jup = 3.204 
[ 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 14.8   n/a MPO493512  

91560 (1999 RW226)          Discovered 1999-Sep-05 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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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
1900-Aug-20 19:01 00:04 Jupiter 1.98147708062177 1.98147598687033 1.98147817438527 3.06982573250516 2.92726656029903 2415252.292522166 4.0671251771712 331.387831059729 24.5991916524593 77.6368231905474 1381075.3162484 T 14 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:09 2019-Sep-24 02:58
1936-Nov-30 14:16 00:03 Jupiter 1.94629626346482 1.94629553063245 1.94629699629719 3.82637503425406 3.71089634398904 2428503.094188219 2.58485094659061 226.69229270665 30.1538305261266 88.718489734928 1739727.99537592 T 14 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:09 2019-Sep-24 02:58
1973-Mar-03 03:52 00:01 Jupiter 1.99226750974536 1.99226659807807 1.99226842141266 4.40298802046748 4.30534475804072 2441744.660996927 1.36101385864852 147.318066570751 40.4482541632004 86.1038139618891 1854625.10464302 T 14 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:09 2019-Sep-24 02:58
2090-Dec-01 15:32 00:03 Jupiter 1.92528791979229 1.92528716993062 1.92528866965593 3.65020404794286 3.52761928258443 2484752.146994651 2.5692177510267 246.382764844619 26.4902259870776 84.313480938683 1644309.87084581 T 14 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:09 2019-Sep-24 02:58
2127-Mar-04 05:23 00:04 Jupiter 1.94569226530031 1.94569127823021 1.94569325237261 4.19223269532764 4.08707114566689 2497992.724107947 3.70974190203094 251.079859897506 40.091886456554 -86.6853587011175 1853712.02810476 T 14 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:09 2019-Sep-24 02:58

Alternate Designations
 1999 RW226 = 1995 YG13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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