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JPL Small-Body Database Browser
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91187 (1998 RW66)
Classification: Main-belt Asteroid          SPK-ID: 2091187
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026494671381193 6.2787e-08  
a 3.134105264650416 3.129e-08 au
q 2.498980502814235 1.9247e-07 au
i 16.33427003455956 8.9873e-06 deg
node 348.5259338669686 1.9382e-05 deg
peri 45.07081033405024 2.7608e-05 deg
M 313.9855788048247 2.2208e-05 deg
tp 2459259.536079264442
(2021-Feb-14.03607926)
0.00012709 TDB
period 2026.60353239382
5.55
3.0349e-05
8.309e-08
d
yr
n .177637112659509 2.6602e-09 deg/d
Q 3.769230026486598 3.763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      7245 days (19.84 yr)  
   first obs. used      1998-08-02  
   last obs. used      2018-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:42:54  

Additional Information
 Earth MOID = 1.53056 au 
 Jupiter MOID = 1.85906 au 
 T_jup = 3.119 
[ 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 13.6   n/a MPO359380  

91187 (1998 RW66)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1946-Feb-26 23:37 00:03 Jupiter 1.86632448113817 1.8663234001038 1.86632556217276 3.83210715867208 3.71178592585556 2431878.483716458 2.62767988971409 347.323637939786 55.0824439831548 -89.2137340473996 1319436.20097545 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 07:42:58 2019-Jul-13 07:42
1956-Aug-12 14:45 00:02 Jupiter 1.99280978871076 1.99280839350645 1.99281118398576 4.71874509692934 4.62779392923611 2435698.114740576 2.04904824642771 732.569296133999 34.512167346125 -85.4947782644747 1733870.1969722 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 07:42:58 2019-Jul-13 07:42
2029-Jan-02 05:19 < 00:01 Jupiter 1.8580365593032 1.85803573594004 1.85803738267142 3.94846099321525 3.83126674509445 2462138.721586612 0.796696662310811 345.002683254206 28.4309916492304 -86.2086933500567 1513652.07253971 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 07:42:58 2019-Jul-13 07:42
2111-Nov-09 21:31 00:04 Jupiter 1.86390550138535 1.86390468400251 1.8639063187755 4.06754040674724 3.95424031162096 2492399.396571966 3.84664728080017 550.914143390139 36.292593482941 -88.882218457999 1289552.28248089 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 07:42:58 2019-Jul-13 07:42
2194-Sep-17 05:50 00:07 Jupiter 1.888342901552 1.88834183513606 1.88834396808537 4.19438735209063 4.08604681557985 2522661.742742440 6.96084028187789 1004.91081550565 31.4752342810443 -88.3382593508918 1206664.43572776 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 07:42:58 2019-Jul-13 07:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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