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382162 (2012 HP42)
Classification: Main-belt Asteroid          SPK-ID: 2382162
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226251040938979 6.0875e-08  
a 2.171103190196985 1.5489e-08 au
q 1.904871435500486 1.2628e-07 au
i 6.489767620910244 1.1786e-05 deg
node 174.2277809714208 4.6426e-05 deg
peri 107.0973116108142 7.1516e-05 deg
M 133.5835868685083 5.0048e-05 deg
tp 2458566.919516909894
(2019-Mar-24.41951691)
0.00016288 TDB
period 1168.474193360918
3.20
1.2504e-05
3.423e-08
d
yr
n .3080940957408064 3.297e-09 deg/d
Q 2.437334944893484 1.7389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      7504 days (20.54 yr)  
   first obs. used      1999-03-18  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64975  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 12:37:35  

Additional Information
 Earth MOID = .900906 au 
 Jupiter MOID = 2.68731 au 
 T_jup = 3.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457551.5 (2016-Jun-12.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226416690738141 6.0734e-08  
q 1.90492227677192 1.26e-07 au
tp 2457399.119403800590
(2016-Jan-11.61940380)
0.0001651 TDB
node 174.2559020091932 4.6406e-05 deg
peri 107.2695663139828 7.1568e-05 deg
i 6.490995384841926 1.179e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      7504 days (20.54 yr)  
   first obs. used      1999-03-18  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64975  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 12:37:35  

Additional Information
 Jupiter MOID = 2.68731 au 
 T_jup = 3.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.688635916379594E-15 -7.61744236260378E-15 4.994726896244257E-13 -1.048508800142387E-14 -2.012285697470972E-14 -4.164667525968213E-16
q -7.61744236260378E-15 1.587565033126757E-14 -1.525809936948077E-12 2.18949272689066E-14 -1.137237396928313E-13 1.130722537204495E-15
tp 4.994726896244257E-13 -1.525809936948077E-12 2.725867968497669E-8 -8.342875252447399E-11 8.992050870494054E-9 -2.659007686670106E-11
node -1.048508800142387E-14 2.18949272689066E-14 -8.342875252447399E-11 2.153559731434549E-9 -2.165280591060661E-9 1.168956416247583E-10
peri -2.012285697470972E-14 -1.137237396928313E-13 8.992050870494054E-9 -2.165280591060661E-9 5.121908495898967E-9 -1.248277847543659E-10
i -4.164667525968213E-16 1.130722537204495E-15 -2.659007686670106E-11 1.168956416247583E-10 -1.248277847543659E-10 1.389931548243216E-10

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 18.1   n/a MPO434368  

382162 (2012 HP42)          Discovered 2003-Sep-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

[ show close-approach data ]
Alternate Designations
 2012 HP42 = 2003 SP114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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