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101449 (1998 VQ55)
Classification: Main-belt Asteroid          SPK-ID: 2101449
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2320538873673074 3.7532e-08  
a 2.276560331166798 9.0395e-09 au
q 1.748275656493338 8.4638e-08 au
i 8.634818930373489 3.5081e-06 deg
node 234.5539207907952 3.1071e-05 deg
peri 150.5200360340529 3.2458e-05 deg
M 108.5253171302209 1.0117e-05 deg
tp 2458622.278915338485
(2019-May-18.77891534)
3.4509e-05 TDB
period 1254.634347806289
3.44
7.4727e-06
2.046e-08
d
yr
n .2869361903166889 1.709e-09 deg/d
Q 2.804845005840258 1.1137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      7907 days (21.65 yr)  
   first obs. used      1998-08-29  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:48  

Additional Information
 Earth MOID = .758937 au 
 Jupiter MOID = 2.66247 au 
 T_jup = 3.558 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2322162890171697 3.7852e-08  
q 1.747973831113485 8.5475e-08 au
tp 2457365.547023889644
(2015-Dec-09.04702389)
3.2839e-05 TDB
node 234.6137527752381 3.1134e-05 deg
peri 150.0632890142478 3.2495e-05 deg
i 8.62449954058278 3.5066e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      769  
   data-arc span      7907 days (21.65 yr)  
   first obs. used      1998-08-29  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:59:48  

Additional Information
 Jupiter MOID = 2.66247 au 
 T_jup = 3.558 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.432799095246782E-15 -3.224989524397569E-15 -5.863424023567733E-13 -1.083027495769527E-14 -1.987850789277223E-13 -2.525155514678195E-15
q -3.224989524397569E-15 7.306001757658211E-15 1.361470350374184E-12 2.665289978184037E-14 4.568242456595108E-13 5.767355637792059E-15
tp -5.863424023567733E-13 1.361470350374184E-12 1.078380251754806E-9 2.135156846891033E-11 3.283214965063542E-10 1.314459994288722E-12
node -1.083027495769527E-14 2.665289978184037E-14 2.135156846891033E-11 9.693087952257762E-10 -9.515817738345394E-10 -2.103140396565527E-11
peri -1.987850789277223E-13 4.568242456595108E-13 3.283214965063542E-10 -9.515817738345394E-10 1.055895819524207E-9 2.124447907426901E-11
i -2.525155514678195E-15 5.767355637792059E-15 1.314459994288722E-12 -2.103140396565527E-11 2.124447907426901E-11 1.22965306964081E-11

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 15.8   n/a MPO453467  
diameter diameter 1.882 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.218   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

101449 (1998 VQ55)          Discovered 1998-Nov-15 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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