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120153 Hoekenga (2003 HR2)
Classification: Main-belt Asteroid          SPK-ID: 2120153
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09089661428003393 3.8445e-08  
a 3.046519428148567 2.4684e-08 au
q 2.769601126791517 1.2132e-07 au
i 10.17537087307053 4.7827e-06 deg
node 46.40429811791567 3.0032e-05 deg
peri 234.4813401692205 4.7815e-05 deg
M 54.52505321261874 3.4312e-05 deg
tp 2458906.330290074460
(2020-Feb-26.83029007)
0.00018577 TDB
period 1942.24653317139
5.32
2.3605e-05
6.463e-08
d
yr
n .1853523710052273 2.2527e-09 deg/d
Q 3.323437729505617 2.6928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      2002-02-10  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:09  

Additional Information
 Earth MOID = 1.76677 au 
 Jupiter MOID = 1.7952 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457477.5 (2016-Mar-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09011261781057264 3.862e-08  
q 2.772779306763667 1.2201e-07 au
tp 2456971.892003910693
(2014-Nov-10.39200391)
0.00019371 TDB
node 46.50647630822277 2.9968e-05 deg
peri 236.019261550968 4.7905e-05 deg
i 10.18659638351579 4.7865e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      6790 days (18.59 yr)  
   first obs. used      2002-02-10  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:09  

Additional Information
 Jupiter MOID = 1.7952 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.491493206214289E-15 -4.63257043161298E-15 1.448055123330876E-12 2.42179470198345E-16 2.529689517555475E-13 -3.784904307299064E-15
q -4.63257043161298E-15 1.48865712922902E-14 -5.880916717556778E-12 2.029163101845082E-15 -1.02836432483089E-12 1.329474836620526E-14
tp 1.448055123330876E-12 -5.880916717556778E-12 3.752205231649561E-8 -3.179210954963369E-11 7.27740330986407E-9 -2.826708729526755E-11
node 2.42179470198345E-16 2.029163101845082E-15 -3.179210954963369E-11 8.980983518424048E-10 -8.896872971108841E-10 -3.999578718013887E-11
peri 2.529689517555475E-13 -1.02836432483089E-12 7.27740330986407E-9 -8.896872971108841E-10 2.294874678291097E-9 3.400585792428527E-11
i -3.784904307299064E-15 1.329474836620526E-14 -2.826708729526755E-11 -3.999578718013887E-11 3.400585792428527E-11 2.291078788471923E-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 15.32   n/a E2021B55  
diameter diameter 3.612 km 1.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.113   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120153 Hoekenga           Discovered 2003 Apr. 21 by the Catalina Sky Survey.
B. Christine Hoekenga (b. 1981) worked on the OSIRIS-REx mission as the social media lead in the Principal Investigator's office.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-11-14Last Updated: 2016-11-20

[ show close-approach data ]
Alternate Designations
 2003 HR2 = 2002 CU290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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