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JPL Small-Body Database Browser
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410137 (2007 HM18)
Classification: Main-belt Asteroid          SPK-ID: 2410137
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09249052322475571 6.8353e-08  
a 3.091681554056171 4.3936e-08 au
q 2.80573030947719 2.0968e-07 au
i 14.04662262829657 7.9691e-06 deg
node 209.0582117794577 3.2445e-05 deg
peri 87.04466835042768 6.0262e-05 deg
M 77.68812157282738 4.659e-05 deg
tp 2458572.008038395245
(2019-Mar-29.50803840)
0.00025804 TDB
period 1985.594490569657
5.44
4.2326e-05
1.159e-07
d
yr
n .1813059019400874 3.8648e-09 deg/d
Q 3.377632798635152 4.8e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      5881 days (16.10 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 14:19:54  

Additional Information
 Earth MOID = 1.83642 au 
 Jupiter MOID = 1.83569 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457629.5 (2016-Aug-29.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09529517884139159 6.7976e-08  
q 2.795923591522085 2.096e-07 au
tp 2458574.793435544918
(2019-Apr-01.29343554)
0.00025044 TDB
node 209.1040095433191 3.2418e-05 deg
peri 87.83697417179954 5.9189e-05 deg
i 14.05414328699024 7.9789e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      5881 days (16.10 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62878  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 14:19:54  

Additional Information
 Jupiter MOID = 1.83569 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.620790227881663E-15 -1.399215366813796E-14 2.434163636242359E-12 -1.242784206190256E-14 4.131523685340556E-13 -9.738113082190315E-15
q -1.399215366813796E-14 4.393134947696545E-14 -8.98003653891865E-12 4.279996885396448E-14 -1.726917464707408E-12 3.314037851934174E-14
tp 2.434163636242359E-12 -8.98003653891865E-12 6.272203836413874E-8 -9.110158034348779E-11 1.244000775318579E-8 -2.615664271354076E-11
node -1.242784206190256E-14 4.279996885396448E-14 -9.110158034348779E-11 1.050930429455612E-9 -1.036872003717884E-9 -4.595244499012329E-11
peri 4.131523685340556E-13 -1.726917464707408E-12 1.244000775318579E-8 -1.036872003717884E-9 3.50332754840812E-9 3.929258078618717E-11
i -9.738113082190315E-15 3.314037851934174E-14 -2.615664271354076E-11 -4.595244499012329E-11 3.929258078618717E-11 6.366257645353674E-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 16.4   n/a MPO495080  

410137 (2007 HM18)          Discovered 2007-Apr-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-10-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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