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47938 (2000 HL45)
Classification: Main-belt Asteroid          SPK-ID: 2047938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080837109022759 4.4065e-08  
a 2.920751737985136 1.4856e-08 au
q 2.605066051519431 1.3226e-07 au
i 2.747892542542792 3.6786e-06 deg
node 132.5336368921114 9.6425e-05 deg
peri 273.9791188373952 9.8338e-05 deg
M 166.9548314445527 1.9152e-05 deg
tp 2458154.954693356278
(2018-Feb-05.45469336)
9.4942e-05 TDB
period 1823.225526077888
4.99
1.3911e-05
3.809e-08
d
yr
n .1974522596633614 1.5065e-09 deg/d
Q 3.236437424450842 1.6462e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      13242 days (36.25 yr)  
   first obs. used      1984-01-25  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:41:46  

Additional Information
 Earth MOID = 1.61645 au 
 Jupiter MOID = 2.11995 au 
 T_jup = 3.269 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456710.5 (2014-Feb-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080126890018252 4.3676e-08  
q 2.607837331270335 1.3135e-07 au
tp 2456336.506989030335
(2013-Feb-13.00698903)
9.3277e-05 TDB
node 132.5343801128083 9.6439e-05 deg
peri 275.2208363969493 9.8402e-05 deg
i 2.746865639642676 3.6761e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      13242 days (36.25 yr)  
   first obs. used      1984-01-25  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:41:46  

Additional Information
 Jupiter MOID = 2.11995 au 
 T_jup = 3.269 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.907619636546834E-15 -5.708632784259922E-15 -1.913586595254689E-12 1.630756192254989E-14 -4.620069424802169E-13 -3.311165200280285E-17
q -5.708632784259922E-15 1.725204178460685E-14 5.75321835162827E-12 -4.965761472762952E-14 1.395405402041891E-12 1.625521766352701E-16
tp -1.913586595254689E-12 5.75321835162827E-12 8.700686035363747E-9 -3.272385274837153E-11 1.853440629699666E-9 6.708138678850726E-14
node 1.630756192254989E-14 -4.965761472762952E-14 -3.272385274837153E-11 9.300565123014299E-9 -9.296702880168447E-9 1.29832560524854E-10
peri -4.620069424802169E-13 1.395405402041891E-12 1.853440629699666E-9 -9.296702880168447E-9 9.68293725046743E-9 -1.296631023538789E-10
i -3.311165200280285E-17 1.625521766352701E-16 6.708138678850726E-14 1.29832560524854E-10 -1.296631023538789E-10 1.351381607089843E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO279992  
diameter diameter 4.281 km 1.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47938 (2000 HL45)          Discovered 2000-Apr-26 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 HL45 = 1984 BY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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