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117007 (2004 HE61)
Classification: Outer Main-belt Asteroid          SPK-ID: 2117007
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08890686051362258 4.6772e-08  
a 3.221384585382452 2.862e-08 au
q 2.93498139538912 1.6447e-07 au
i 4.082765083367158 4.1838e-06 deg
node 264.1252488529653 9.6227e-05 deg
peri 341.5547980590446 0.00010371 deg
M 326.4691278527641 3.9234e-05 deg
tp 2459593.200126907045
(2022-Jan-13.70012691)
0.00023011 TDB
period 2111.846222657039
5.78
2.8144e-05
7.705e-08
d
yr
n .1704669573654196 2.2718e-09 deg/d
Q 3.507787775375783 3.1165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      2000-09-26  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53102  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:39:07  

Additional Information
 Earth MOID = 1.92205 au 
 Jupiter MOID = 1.52315 au 
 T_jup = 3.179 
[ show covariance matrix ]

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 15.28   n/a E2021B55  
diameter diameter 5.054 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117007 (2004 HE61)          Discovered 2004-Apr-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 HE61 = 2001 YG142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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