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JPL Small-Body Database Browser
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91526 (1999 RF189)
Classification: Main-belt Asteroid          SPK-ID: 2091526
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959636180577633 5.0375e-08  
a 2.87954674503225 1.7453e-08 au
q 2.315260346509275 1.4527e-07 au
i 9.971868089639763 5.4858e-06 deg
node 346.638279444571 3.167e-05 deg
peri 3.892050765595236 3.4628e-05 deg
M 91.17808769740671 1.6484e-05 deg
tp 2458548.464435312393
(2019-Mar-05.96443531)
8.0077e-05 TDB
period 1784.779735977802
4.89
1.6227e-05
4.443e-08
d
yr
n .2017055621727865 1.8338e-09 deg/d
Q 3.443833143555226 2.0873e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      21670 days (59.33 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:32:48  

Additional Information
 Earth MOID = 1.30938 au 
 Jupiter MOID = 1.98803 au 
 T_jup = 3.244 
[ 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 15.7   n/a MPO453355  

91526 (1999 RF189)          Discovered 1999-Sep-09 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
1909-Mar-23 12:33 00:03 Jupiter 1.9698262470845 1.96982575025981 1.96982674391646 3.10438780540352 2.96263842870047 2418389.022800499 2.7520701476624 418.096456661857 15.2880771255662 -87.6799412087397 2594724.65575539 T 13 CATAB v2.0f-lin.ifort 2020-Feb-23 22:32:51 2020-Feb-23 22:33
1992-Feb-15 09:05 < 00:01 Jupiter 1.96411184718532 1.96411141069182 1.96411228368173 3.10749793855217 2.96547536990616 2448667.878708811 0.652934570611561 339.970937778158 13.4943045636052 -87.6414817762017 2723881.27334034 T 13 CATAB v2.0f-lin.ifort 2020-Feb-23 22:32:51 2020-Feb-23 22:33
2075-Jan-08 20:11 00:02 Jupiter 1.97404856618101 1.97404811309974 1.97404901926497 3.13330913592588 2.99323711284809 2478946.340795318 1.53448046624946 292.577132198634 13.4350247424239 -87.0643639454143 2714010.32840699 T 13 CATAB v2.0f-lin.ifort 2020-Feb-23 22:32:51 2020-Feb-23 22:33
2157-Dec-03 13:19 00:04 Jupiter 1.9822856348869 1.98228496856241 1.98228630121905 3.15899297542988 3.02070270425595 2509225.055147497 3.6708139055455 305.408216907094 16.2279557576703 -85.3030297380626 2341225.44641509 T 13 CATAB v2.0f-lin.ifort 2020-Feb-23 22:32:51 2020-Feb-23 22:33

Alternate Designations
 1999 RF189 = 4167 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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