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136892 (1998 HD24)
Classification: Main-belt Asteroid          SPK-ID: 2136892
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03827023022488919 3.8091e-08  
a 2.264526767604556 1.2199e-08 au
q 2.177862806857906 8.5961e-08 au
i 5.98639823969675 6.3047e-06 deg
node 187.8750041823085 4.1194e-05 deg
peri 272.2108843135716 9.2361e-05 deg
M 295.2577016306665 8.2626e-05 deg
tp 2459224.346458055449
(2021-Jan-09.84645806)
0.00028581 TDB
period 1244.699785606192
3.41
1.0058e-05
2.754e-08
d
yr
n .2892263694129852 2.3371e-09 deg/d
Q 2.351190728351206 1.2666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      7318 days (20.04 yr)  
   first obs. used      1998-04-20  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65517  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:27:51  

Additional Information
 Earth MOID = 1.20446 au 
 Jupiter MOID = 2.6855 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456625.5 (2013-Nov-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03808084435677369 3.8115e-08  
q 2.178724084466223 8.6018e-08 au
tp 2456733.189503338356
(2014-Mar-16.68950334)
0.00028698 TDB
node 187.9710655183608 4.1188e-05 deg
peri 271.8415394867995 9.2872e-05 deg
i 5.986029231377715 6.3067e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      7318 days (20.04 yr)  
   first obs. used      1998-04-20  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65517  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:27:51  

Additional Information
 Jupiter MOID = 2.6855 au 
 T_jup = 3.609 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.452733891058991E-15 -3.247928657397617E-15 -2.927198108577163E-12 -6.196679838451163E-15 -8.691229773966097E-13 3.785153821046324E-16
q -3.247928657397617E-15 7.399122612804157E-15 6.616863662618296E-12 1.409514693101442E-14 1.961276971302559E-12 -6.113905076507489E-16
tp -2.927198108577163E-12 6.616863662618296E-12 8.235563062817622E-8 -3.68151961450081E-11 2.390016119655433E-8 -3.058049589252011E-11
node -6.196679838451163E-15 1.409514693101442E-14 -3.68151961450081E-11 1.696414483981374E-9 -1.697350354476996E-9 8.168906867485028E-11
peri -8.691229773966097E-13 1.961276971302559E-12 2.390016119655433E-8 -1.697350354476996E-9 8.625260003829584E-9 -9.011903057798121E-11
i 3.785153821046324E-16 -6.113905076507489E-16 -3.058049589252011E-11 8.168906867485028E-11 -9.011903057798121E-11 3.97739974130653E-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 16.6   n/a MPO436675  

136892 (1998 HD24)          Discovered 1998-Apr-28 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 HD24 = 2005 LQ31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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