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46234 (2001 HK9)
Classification: Main-belt Asteroid          SPK-ID: 2046234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2272549502753362 3.8593e-08  
a 2.984244659300789 1.7631e-08 au
q 2.30606028764195 1.1196e-07 au
i 9.552988397197948 4.2556e-06 deg
node 207.481884705481 2.3243e-05 deg
peri 122.9153042846398 2.4705e-05 deg
M 96.86174651313446 1.0793e-05 deg
tp 2458093.859551342913
(2017-Dec-06.35955134)
5.4002e-05 TDB
period 1882.998893601604
5.16
1.6687e-05
4.569e-08
d
yr
n .1911843927382398 1.6942e-09 deg/d
Q 3.662429030959626 2.1637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1458  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53929  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:15:09  

Additional Information
 Earth MOID = 1.31192 au 
 Jupiter MOID = 1.8575 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456668.5 (2014-Jan-11.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2250342765424617 3.7911e-08  
q 2.314659289797324 1.09e-07 au
tp 2456198.096072362621
(2012-Sep-27.59607236)
4.7599e-05 TDB
node 208.2508444495915 2.3445e-05 deg
peri 120.6649104042274 2.4897e-05 deg
i 9.49945812454285 4.2375e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1458  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53929  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:15:09  

Additional Information
 Jupiter MOID = 1.8575 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.437212650801479E-15 -4.100886938051751E-15 2.966475752997943E-13 7.406075237643268E-15 5.488617501809848E-14 -1.425312498444119E-15
q -4.100886938051751E-15 1.188062853576486E-14 -6.711505685838585E-13 -1.695705253180549E-14 -1.20451866107798E-13 4.479408435241022E-15
tp 2.966475752997943E-13 -6.711505685838585E-13 2.265698778966546E-9 1.427007045740245E-11 4.195152569674626E-10 2.490276943339038E-14
node 7.406075237643268E-15 -1.695705253180549E-14 1.427007045740245E-11 5.496569221656566E-10 -5.39016072740762E-10 -1.219560433915504E-11
peri 5.488617501809848E-14 -1.20451866107798E-13 4.195152569674626E-10 -5.39016072740762E-10 6.198699581003383E-10 1.184127508160682E-11
i -1.425312498444119E-15 4.479408435241022E-15 2.490276943339038E-14 -1.219560433915504E-11 1.184127508160682E-11 1.795643264738555E-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 13.5   n/a MPO365793  
diameter diameter 6.220 km 1.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.870 h n/a LCDB (Rev. 2019-January); 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 0.240   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46234 (2001 HK9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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