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JPL Small-Body Database Browser
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91449 (1999 RQ24)
Classification: Main-belt Asteroid          SPK-ID: 2091449
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07815673896600644 4.1568e-08  
a 2.964848667156752 2.2669e-08 au
q 2.73312576380407 1.2533e-07 au
i 9.79133426702726 8.975e-06 deg
node 6.082168243929768 3.0571e-05 deg
peri 83.68356545248909 6.6878e-05 deg
M 298.9977816804169 6.0374e-05 deg
tp 2459316.469636549272
(2021-Apr-11.96963655)
0.00031345 TDB
period 1864.671028220985
5.11
2.1385e-05
5.855e-08
d
yr
n .1930635455539109 2.2142e-09 deg/d
Q 3.196571570509435 2.444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      7351 days (20.13 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:55:25  

Additional Information
 Earth MOID = 1.77141 au 
 Jupiter MOID = 1.97334 au 
 T_jup = 3.238 
[ 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 14.4   n/a MPO412707  

91449 (1999 RQ24)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RQ24 = 1999 ST13 = 2000 XY9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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