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15423 (1998 QR91)
Classification: Main-belt Asteroid          SPK-ID: 2015423
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195222007625005 3.3073e-08  
a 2.188112717994299 6.5298e-09 au
q 1.760944960277645 7.3775e-08 au
i .5864604970046625 3.0545e-06 deg
node 102.5649820942049 0.00036596 deg
peri 283.8767771773688 0.00036606 deg
M 306.2647522429376 1.0116e-05 deg
tp 2459376.965461931765
(2021-Jun-11.46546193)
3.3719e-05 TDB
period 1182.232686125207
3.24
5.2921e-06
1.449e-08
d
yr
n .3045085829760872 1.3631e-09 deg/d
Q 2.615280475710953 7.8046e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1434  
   data-arc span      13305 days (36.43 yr)  
   first obs. used      1984-03-05  
   last obs. used      2020-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:57:29  

Additional Information
 Earth MOID = .764084 au 
 Jupiter MOID = 2.83399 au 
 T_jup = 3.650 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.38   n/a E2021B10  
diameter diameter 2.306 km 0.375 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.276   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15423 (1998 QR91)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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