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46244 (2001 HU15)
Classification: Main-belt Asteroid          SPK-ID: 2046244
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1752895923620819 3.5768e-08  
a 3.155840590243313 2.4961e-08 au
q 2.602654579619851 1.1887e-07 au
i 22.76496590873973 4.3181e-06 deg
node 105.8439855858931 1.0693e-05 deg
peri 260.7849611430928 1.6176e-05 deg
M 25.97063159456651 1.2896e-05 deg
tp 2458852.776011710913
(2020-Jan-04.27601171)
7.2966e-05 TDB
period 2047.722081398954
5.61
2.4295e-05
6.652e-08
d
yr
n .1758051071823461 2.0858e-09 deg/d
Q 3.709026600866776 2.9337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1584  
   data-arc span      7720 days (21.14 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49613  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:23:59  

Additional Information
 Earth MOID = 1.712 au 
 Jupiter MOID = 2.00955 au 
 T_jup = 3.063 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457041.5 (2015-Jan-19.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772801077359352 3.5862e-08  
q 2.595059076161711 1.1923e-07 au
tp 2456795.913587475518
(2014-May-18.41358748)
6.9561e-05 TDB
node 106.2296423478762 1.0715e-05 deg
peri 259.1684792062664 1.599e-05 deg
i 22.75594010599805 4.315e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1584  
   data-arc span      7720 days (21.14 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49613  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:23:59  

Additional Information
 Jupiter MOID = 2.00955 au 
 T_jup = 3.063 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.286088404537364E-15 -4.21477330034356E-15 2.800560302180719E-13 -1.033218585364279E-15 5.553603241355578E-14 4.022429808342402E-17
q -4.21477330034356E-15 1.421669202016312E-14 -1.005611515951887E-12 2.733936347009576E-15 -1.871745058855851E-13 2.454504094303271E-15
tp 2.800560302180719E-13 -1.005611515951887E-12 4.838769595001705E-9 9.359736167081983E-13 8.501846657630422E-10 -1.628424866111398E-12
node -1.033218585364279E-15 2.733936347009576E-15 9.359736167081983E-13 1.14801889994634E-10 -1.053588958360269E-10 -5.663988078452148E-12
peri 5.553603241355578E-14 -1.871745058855851E-13 8.501846657630422E-10 -1.053588958360269E-10 2.556806182028675E-10 4.894642426644696E-12
i 4.022429808342402E-17 2.454504094303271E-15 -1.628424866111398E-12 -5.663988078452148E-12 4.894642426644696E-12 1.861948131421868E-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 12.8   n/a MPO333221  
diameter diameter 12.676 km 4.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.013 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.100   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46244 (2001 HU15)          Discovered 2001-Apr-24 by Yeung, W. K. Y. at Desert Beaver
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HU15 = 1999 CJ17 = 2000 EU173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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