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JPL Small-Body Database Browser
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91452 (1999 RL43)
Classification: Main-belt Asteroid          SPK-ID: 2091452
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05712044618870465 4.0108e-08  
a 2.976816673906349 2.3403e-08 au
q 2.806779577270842 1.2212e-07 au
i 8.344777538192005 4.0837e-06 deg
node 234.5077157021219 3.1699e-05 deg
peri 210.8902822361158 5.078e-05 deg
M 295.4759288658639 4.0601e-05 deg
tp 2459336.737247528139
(2021-May-02.23724753)
0.00021287 TDB
period 1875.972904104182
5.14
2.2122e-05
6.057e-08
d
yr
n .1919004262867581 2.263e-09 deg/d
Q 3.146853770541855 2.4739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      694  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4772  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:55:47  

Additional Information
 Earth MOID = 1.82608 au 
 Jupiter MOID = 2.07246 au 
 T_jup = 3.242 
[ 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 14.7   n/a MPO449562  

91452 (1999 RL43)          Discovered 1999-Sep-14 by Kusnirak, P., Pravec, P. at Ondrejov
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
1939-Feb-18 08:19 00:01 Europ 0.0497047026372673 0.0496794174649978 0.0497299923685136 4.20554879186807 4.20554874102269 2429312.846826204 1.26953282932101 1466.9801332018 49.8915281367695 -30.8054061630952 76401.4118987181 T 21 CATAB v2.0f-lin.ifort 2019-Nov-07 10:56:04 2019-Nov-07 10:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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