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295377 (2008 HM64)
Classification: Mars-crossing Asteroid          SPK-ID: 2295377
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3444579492613288 7.3591e-08  
a 2.264125351184416 1.107e-08 au
q 1.484229375844846 1.677e-07 au
i 8.499986946251909 9.0067e-06 deg
node 139.2428898261301 3.0883e-05 deg
peri 149.4473814371849 3.4934e-05 deg
M 156.6332951946147 9.1096e-06 deg
tp 2458459.084466324014
(2018-Dec-06.58446632)
3.1016e-05 TDB
period 1244.368841766258
3.41
9.1257e-06
2.498e-08
d
yr
n .2893032900832005 2.1216e-09 deg/d
Q 3.044021326523985 1.4882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1998-06-27  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:02:04  

Additional Information
 Earth MOID = .475997 au 
 Jupiter MOID = 2.18567 au 
 T_jup = 3.523 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456885.5 (2014-Aug-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3441842580520044 7.3516e-08  
q 1.484816836923138 1.6742e-07 au
tp 2457215.463845753533
(2015-Jul-11.96384575)
3.208e-05 TDB
node 139.2747322055076 3.0884e-05 deg
peri 149.4389541083807 3.4958e-05 deg
i 8.499358565632811 9.0062e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      109  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1998-06-27  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6003  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:02:04  

Additional Information
 Jupiter MOID = 2.18567 au 
 T_jup = 3.523 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.404592540203262E-15 -1.229624080577094E-14 5.719531500920189E-13 5.493529465700096E-14 1.655445537582343E-13 -5.477795953666346E-14
q -1.229624080577094E-14 2.802900891821497E-14 -1.357990196602607E-12 -1.272870693428132E-13 -4.148057324100896E-13 1.257365421386778E-13
tp 5.719531500920189E-13 -1.357990196602607E-12 1.029122830943722E-9 3.366548266619281E-11 5.297031432989392E-10 -9.889101711156276E-12
node 5.493529465700096E-14 -1.272870693428132E-13 3.366548266619281E-11 9.538496886492743E-10 -9.226685393023376E-10 -3.291755419950449E-12
peri 1.655445537582343E-13 -4.148057324100896E-13 5.297031432989392E-10 -9.226685393023376E-10 1.222026885865399E-9 -1.664662214273432E-12
i -5.477795953666346E-14 1.257365421386778E-13 -9.889101711156276E-12 -3.291755419950449E-12 -1.664662214273432E-12 8.111138581453978E-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 17.3   n/a MPO433904  

295377 (2008 HM64)          Discovered 2008-Apr-29 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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