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120152 (2003 HJ1)
Classification: Main-belt Asteroid          SPK-ID: 2120152
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 .06696626205194109 3.9602e-08  
a 3.05949879284866 2.4988e-08 au
q 2.854615594939159 1.2036e-07 au
i 9.571675184031141 3.9289e-06 deg
node 213.7234355445383 2.5002e-05 deg
peri 354.5492551872202 3.9912e-05 deg
M 115.3211101311516 3.0988e-05 deg
tp 2458574.347426596599
(2019-Mar-31.84742660)
0.00016838 TDB
period 1954.671839083634
5.35
2.3947e-05
6.556e-08
d
yr
n .1841741374699351 2.2564e-09 deg/d
Q 3.264381990758161 2.6662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      7257 days (19.87 yr)  
   first obs. used      2000-11-24  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:09  

Additional Information
 Earth MOID = 1.84852 au 
 Jupiter MOID = 1.70414 au 
 T_jup = 3.210 
[ 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 14.87   n/a E2021B55  

120152 (2003 HJ1)          Discovered 2003-Apr-21 by McNaught, R. H. at Siding Spring
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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