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312568 (2009 HM19)
Classification: Main-belt Asteroid          SPK-ID: 2312568
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1499423278587406 5.6317e-08  
a 2.641411180652535 2.6725e-08 au
q 2.245351839393389 1.4081e-07 au
i 13.5102117162561 5.4958e-06 deg
node 69.7913603872244 2.374e-05 deg
peri 171.6330452583947 3.0304e-05 deg
M 198.3210564255996 2.0984e-05 deg
tp 2459704.711976146351
(2022-May-05.21197615)
9.6281e-05 TDB
period 1568.023057350229
4.29
2.3797e-05
6.515e-08
d
yr
n .2295884606495244 3.4844e-09 deg/d
Q 3.03747052191168 3.0732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      2000-03-09  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:49  

Additional Information
 Earth MOID = 1.23311 au 
 Jupiter MOID = 1.98743 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457544.5 (2016-Jun-05.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .150635085898466 5.6161e-08  
q 2.24245013978275 1.4039e-07 au
tp 2458137.661974434867
(2018-Jan-19.16197443)
8.6459e-05 TDB
node 69.81200102761184 2.3757e-05 deg
peri 171.8345736872533 3.0296e-05 deg
i 13.50803319838021 5.4946e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      2000-03-09  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:49  

Additional Information
 Jupiter MOID = 1.98743 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.154058585800051E-15 -7.798733220841907E-15 9.919532176244801E-13 1.92893960741032E-14 3.296672652142116E-14 -3.072749192576446E-15
q -7.798733220841907E-15 1.970808451421016E-14 -2.082341248691011E-12 -4.39472347784385E-14 -4.113229758639496E-14 8.917687551492329E-15
tp 9.919532176244801E-13 -2.082341248691011E-12 7.475170012190704E-9 3.203643898623093E-11 1.62590916808146E-9 -9.221041777971982E-12
node 1.92893960741032E-14 -4.39472347784385E-14 3.203643898623093E-11 5.643727873746632E-10 -5.424428773311466E-10 2.298366501800413E-12
peri 3.296672652142116E-14 -4.113229758639496E-14 1.62590916808146E-9 -5.424428773311466E-10 9.178348381929175E-10 -4.39428149927668E-12
i -3.072749192576446E-15 8.917687551492329E-15 -9.221041777971982E-12 2.298366501800413E-12 -4.39428149927668E-12 3.019042868486118E-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 16.3   n/a MPO450244  

312568 (2009 HM19)          Discovered 2009-Apr-19 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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