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120834 (1998 HG146)
Classification: Main-belt Asteroid          SPK-ID: 2120834
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2013864481216836 6.0655e-08  
a 2.571694543623669 1.449e-08 au
q 2.053790113829384 1.5227e-07 au
i 4.521543018114028 5.035e-06 deg
node 82.70434325431341 7.2952e-05 deg
peri 173.1955561478545 7.4345e-05 deg
M 102.3916400950052 1.6854e-05 deg
tp 2458572.060503007709
(2019-Mar-29.56050301)
6.9145e-05 TDB
period 1506.355585027383
4.12
1.2731e-05
3.486e-08
d
yr
n .2389873968525537 2.0198e-09 deg/d
Q 3.089598973417953 1.7408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1995-10-21  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:24  

Additional Information
 Earth MOID = 1.03897 au 
 Jupiter MOID = 1.96769 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457278.5 (2015-Sep-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008315060285826 6.0604e-08  
q 2.056173438246195 1.5218e-07 au
tp 2457065.736513998001
(2015-Feb-12.23651400)
6.5866e-05 TDB
node 82.71698326057773 7.2972e-05 deg
peri 173.3854905163715 7.4371e-05 deg
i 4.52057097908656 5.0322e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1995-10-21  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:24  

Additional Information
 Jupiter MOID = 1.96769 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.672796382471021E-15 -9.199172867441879E-15 1.75844247619898E-12 5.588912244627584E-14 1.74053103399907E-13 -3.741093097220903E-15
q -9.199172867441879E-15 2.315939364015347E-14 -4.3924866706771E-12 -1.462923197414004E-13 -4.278888573207346E-13 9.366261983009154E-15
tp 1.75844247619898E-12 -4.3924866706771E-12 4.338384556476971E-9 5.551297802552989E-11 9.5708798399752E-10 -6.085059187014055E-12
node 5.588912244627584E-14 -1.462923197414004E-13 5.551297802552989E-11 5.324950012456252E-9 -5.297357959890432E-9 9.672005433432902E-11
peri 1.74053103399907E-13 -4.278888573207346E-13 9.5708798399752E-10 -5.297357959890432E-9 5.531060432180478E-9 -9.779904426918293E-11
i -3.741093097220903E-15 9.366261983009154E-15 -6.085059187014055E-12 9.672005433432902E-11 -9.779904426918293E-11 2.532330053330603E-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 MPO436583  

120834 (1998 HG146)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 HG146 = 1995 UO64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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