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245075 (2004 HB12)
Classification: Main-belt Asteroid          SPK-ID: 2245075
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1023090137168528 6.9562e-08  
a 3.183995906909515 5.0595e-08 au
q 2.858244425995106 2.4667e-07 au
i 17.30180769601275 9.3801e-06 deg
node 214.3154453283073 2.1484e-05 deg
peri 50.85240156533037 5.5756e-05 deg
M 267.5569122237216 5.7827e-05 deg
tp 2459533.379631812166
(2021-Nov-14.87963181)
0.00034095 TDB
period 2075.186712895657
5.68
4.9464e-05
1.354e-07
d
yr
n .1734783659527514 4.135e-09 deg/d
Q 3.509747387823924 5.5772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      2000-09-22  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54362  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:01:52  

Additional Information
 Earth MOID = 1.87712 au 
 Jupiter MOID = 1.57788 au 
 T_jup = 3.120 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456866.5 (2014-Jul-28.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1013717147078553 7.0378e-08  
q 2.86261593444714 2.4888e-07 au
tp 2457451.895383264047
(2016-Mar-04.39538326)
0.000314 TDB
node 214.3681675905236 2.1487e-05 deg
peri 49.78800135317849 5.5848e-05 deg
i 17.29629528151799 9.3784e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      2000-09-22  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54362  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:01:52  

Additional Information
 Jupiter MOID = 1.57788 au 
 T_jup = 3.120 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.953006892304123E-15 -1.729186848324096E-14 -1.026707906763007E-11 -4.030472442722099E-15 -1.693312837658602E-12 1.040020630326691E-14
q -1.729186848324096E-14 6.194320010998741E-14 3.994470205482531E-11 -6.050672320313375E-16 6.510492072179603E-12 -2.536153836944299E-14
tp -1.026707906763007E-11 3.994470205482531E-11 9.859688599273102E-8 -3.152023267623465E-12 1.621163654788646E-8 -6.026266037881908E-11
node -4.030472442722099E-15 -6.050672320313375E-16 -3.152023267623465E-12 4.616964581846856E-10 -4.412601577401845E-10 -4.030868975704012E-11
peri -1.693312837658602E-12 6.510492072179603E-12 1.621163654788646E-8 -4.412601577401845E-10 3.118949753652081E-9 2.892948301153484E-11
i 1.040020630326691E-14 -2.536153836944299E-14 -6.026266037881908E-11 -4.030868975704012E-11 2.892948301153484E-11 8.795531028712313E-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 15.5   n/a MPO427397  
diameter diameter 3.741 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245075 (2004 HB12)          Discovered 2004-Apr-19 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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