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150158 (1997 HG2)
Classification: Main-belt Asteroid          SPK-ID: 2150158
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 .09540197157312799 3.9325e-08  
a 3.106944600444335 2.559e-08 au
q 2.810535959993461 1.2311e-07 au
i 9.166336152321719 4.3546e-06 deg
node 204.2241708526666 2.7741e-05 deg
peri 268.7123998656877 3.9033e-05 deg
M 221.2136484929496 3.1174e-05 deg
tp 2459971.657255870861
(2023-Jan-27.15725587)
0.00017765 TDB
period 2000.316379088667
5.48
2.4713e-05
6.766e-08
d
yr
n .1799715303856153 2.2234e-09 deg/d
Q 3.403353240895209 2.8031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      8602 days (23.55 yr)  
   first obs. used      1997-04-29  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:09:45  

Additional Information
 Earth MOID = 1.84618 au 
 Jupiter MOID = 1.77751 au 
 T_jup = 3.194 
[ 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 15.32   n/a E2021B55  
diameter diameter 3.927 km 1.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150158 (1997 HG2)          Discovered 1997-Apr-29 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 1997 HG2 = 2002 GY102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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