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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949630870550546 3.3052e-08  
a 2.187420001412241 6.4528e-09 au
q 1.760953845250939 7.3659e-08 au
i .5865024242432481 3.0531e-06 deg
node 102.571447638528 0.00036588 deg
peri 283.9018482960888 0.00036598 deg
M 5.926123388563045 1.0274e-05 deg
tp 2459377.047972081688
(2021-Jun-11.54797208)
3.3669e-05 TDB
period 1181.671320598392
3.24
5.2288e-06
1.432e-08
d
yr
n .3046532430165926 1.3481e-09 deg/d
Q 2.613886157573543 7.7109e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      13660 days (37.40 yr)  
   first obs. used      1984-03-05  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:45:03  

Additional Information
 Earth MOID = .764627 au 
 Jupiter MOID = 2.83634 au 
 T_jup = 3.651 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456576.5 (2013-Oct-11.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195043620361575 3.2897e-08  
q 1.761030858016177 7.3327e-08 au
tp 2457013.092896503913
(2014-Dec-21.59289650)
2.8423e-05 TDB
node 102.4494304450297 0.00036606 deg
peri 284.0055703886228 0.00036616 deg
i .5861462980081813 3.0527e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      13660 days (37.40 yr)  
   first obs. used      1984-03-05  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:45:03  

Additional Information
 Jupiter MOID = 2.83634 au 
 T_jup = 3.651 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.082200005957723E-15 -2.406489325014576E-15 -2.946817309420838E-13 -4.208018999918064E-15 -7.497631801543516E-14 -1.585218139541554E-16
q -2.406489325014576E-15 5.376833468991555E-15 7.008880512272984E-13 9.421166176387284E-15 1.766136522453017E-13 3.622014215803814E-16
tp -2.946817309420838E-13 7.008880512272984E-13 8.078951891587116E-10 -5.356847615721924E-12 2.52015076876533E-10 1.314808055032257E-13
node -4.208018999918064E-15 9.421166176387284E-15 -5.356847615721924E-12 1.3400301481275E-7 -1.339976789730446E-7 1.438560722455129E-10
peri -7.497631801543516E-14 1.766136522453017E-13 2.52015076876533E-10 -1.339976789730446E-7 1.340744551706837E-7 -1.438134928530666E-10
i -1.585218139541554E-16 3.622014215803814E-16 1.314808055032257E-13 1.438560722455129E-10 -1.438134928530666E-10 9.319114292620996E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.39   n/a MPO636296  
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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