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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08906924741110851 4.876e-08  
a 3.222235200956785 3.335e-08 au
q 2.935233136625982 1.6704e-07 au
i 4.082646096547898 5.4466e-06 deg
node 264.1327667511376 0.00010363 deg
peri 341.4260247787522 0.00011307 deg
M 293.1885238257754 4.8203e-05 deg
tp 2459592.587367479544
(2022-Jan-13.08736748)
0.00028461 TDB
period 2112.68273618973
5.78
3.2799e-05
8.98e-08
d
yr
n .1703994612315846 2.6454e-09 deg/d
Q 3.509237265287588 3.632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      7481 days (20.48 yr)  
   first obs. used      2000-09-26  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54336  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:59:15  

Additional Information
 Earth MOID = 1.92058 au 
 Jupiter MOID = 1.52276 au 
 T_jup = 3.178 
[ 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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