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359974 (2012 HS2)
Classification: Jupiter Trojan          SPK-ID: 2359974
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1204624772484303 1.0068e-07  
a 5.251965986071932 3.4107e-07 au
q 4.619301152965212 7.8151e-07 au
i 19.19778022968823 1.2281e-05 deg
node 323.872750336137 2.2997e-05 deg
peri 78.17177967894956 6.9536e-05 deg
M 307.1796089808307 7.7601e-05 deg
tp 2459645.530714704583
(2022-Mar-07.03071470)
0.00099399 TDB
period 4396.238892085765
12.04
0.00042824
1.172e-06
d
yr
n .08188817960918418 7.9768e-09 deg/d
Q 5.884630819178652 3.8215e-07 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-02-13  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52784  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:19  

Additional Information
 Earth MOID = 3.69206 au 
 Jupiter MOID = .0337827 au 
 T_jup = 2.875 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457090.5 (2015-Mar-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191242414056817 1.0025e-07  
q 4.630872633113956 7.7787e-07 au
tp 2455248.672172133528
(2010-Feb-21.17217213)
0.0007433 TDB
node 323.9377599968232 2.3021e-05 deg
peri 78.16555067824936 7.028e-05 deg
i 19.17722955873356 1.2274e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-02-13  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52784  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:19  

Additional Information
 Jupiter MOID = .0337827 au 
 T_jup = 2.875 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.004976408793354E-14 -7.543832861770577E-14 -2.816069115630988E-11 -2.61860516866102E-14 -3.356620251470806E-12 -1.730985546091349E-14
q -7.543832861770577E-14 6.050847983167378E-13 2.425557156165113E-10 2.390496676834424E-13 2.945186139035491E-11 1.667003003251411E-13
tp -2.816069115630988E-11 2.425557156165113E-10 5.525003550625052E-7 2.554573801871243E-10 4.850179778521701E-8 1.499826905037476E-10
node -2.61860516866102E-14 2.390496676834424E-13 2.554573801871243E-10 5.299439109521415E-10 -4.749540738392E-10 -2.616248406018243E-11
peri -3.356620251470806E-12 2.945186139035491E-11 4.850179778521701E-8 -4.749540738392E-10 4.939242976831985E-9 4.032651608293111E-11
i -1.730985546091349E-14 1.667003003251411E-13 1.499826905037476E-10 -2.616248406018243E-11 4.032651608293111E-11 1.506487703418064E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO434270  

359974 (2012 HS2)          Discovered 2011-Dec-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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