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74035 (1998 HF44)
Classification: Main-belt Asteroid          SPK-ID: 2074035
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 .1337297482905457 5.1234e-08  
a 2.563143143302306 1.4599e-08 au
q 2.220374655915851 1.3672e-07 au
i 3.594524258215488 5.1752e-06 deg
node 191.1598050574821 8.2323e-05 deg
peri 14.68890862019448 8.5975e-05 deg
M 139.0825061968066 2.9314e-05 deg
tp 2458421.434454413672
(2018-Oct-29.93445441)
0.00011886 TDB
period 1498.848432570628
4.10
1.2806e-05
3.506e-08
d
yr
n .2401843923488483 2.0521e-09 deg/d
Q 2.905911630688762 1.6552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      10191 days (27.90 yr)  
   first obs. used      1990-06-14  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58645  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:28:32  

Additional Information
 Earth MOID = 1.21648 au 
 Jupiter MOID = 2.05306 au 
 T_jup = 3.418 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456265.5 (2012-Dec-04.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1341259381643775 5.151e-08  
q 2.220406585147388 1.377e-07 au
tp 2456919.671603753186
(2014-Sep-19.17160375)
0.0001101 TDB
node 191.3592207914427 8.2207e-05 deg
peri 14.32011439280333 8.5758e-05 deg
i 3.59589292690556 5.1742e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      10191 days (27.90 yr)  
   first obs. used      1990-06-14  
   last obs. used      2018-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58645  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:28:32  

Additional Information
 Jupiter MOID = 2.05306 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.653237509653445E-15 -7.067102778387543E-15 -3.046493411586428E-12 -2.974950147248577E-14 -5.685711849838705E-13 -2.0159710519342E-15
q -7.067102778387543E-15 1.896203748088452E-14 8.63519089311661E-12 8.238015764044295E-14 1.62190168186748E-12 5.634886863088318E-15
tp -3.046493411586428E-12 8.63519089311661E-12 1.212091019626258E-8 6.0976007056946E-11 2.705164686426345E-9 5.980147533516768E-12
node -2.974950147248577E-14 8.238015764044295E-14 6.0976007056946E-11 6.757922123769979E-9 -6.731084873176996E-9 -1.613764796727198E-10
peri -5.685711849838705E-13 1.62190168186748E-12 2.705164686426345E-9 -6.731084873176996E-9 7.354512173936818E-9 1.623885251275039E-10
i -2.0159710519342E-15 5.634886863088318E-15 5.980147533516768E-12 -1.613764796727198E-10 1.623885251275039E-10 2.677286221558417E-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 15.6   n/a MPO293836  
diameter diameter 1.905 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.337   0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74035 (1998 HF44)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HF44 = 2002 EH41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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