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120158 (2003 HC15)
Classification: Main-belt Asteroid          SPK-ID: 2120158
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0941419061459112 4.0734e-08  
a 3.002038979436583 2.2268e-08 au
q 2.719421307588097 1.2434e-07 au
i 11.34560801681215 4.5196e-06 deg
node 70.3397374529585 3.311e-05 deg
peri 227.9321601275875 5.2098e-05 deg
M 62.30114494778808 3.7853e-05 deg
tp 2458871.711631938810
(2020-Jan-23.21163194)
0.00020098 TDB
period 1899.865766531643
5.20
2.1139e-05
5.788e-08
d
yr
n .1894870713193642 2.1083e-09 deg/d
Q 3.284656651285069 2.4364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      8300 days (22.72 yr)  
   first obs. used      1998-04-22  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:11  

Additional Information
 Earth MOID = 1.71643 au 
 Jupiter MOID = 1.88496 au 
 T_jup = 3.216 
[ 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 15.17   n/a E2021B55  
diameter diameter 3.854 km 0.844 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.119   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120158 (2003 HC15)          Discovered 2003-Apr-26 by NEAT at Haleakala
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2003 HC15 = 2002 CD290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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