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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457573.5 (2016-Jul-04.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06399639756863315 3.9855e-08  
q 2.863681989143586 1.2034e-07 au
tp 2456619.071197172490
(2013-Nov-22.57119717)
0.00017794 TDB
node 213.9378179102218 2.4945e-05 deg
peri 354.3427084957673 4.0894e-05 deg
i 9.581793715655753 3.9337e-06 deg
  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
 Jupiter MOID = 1.70414 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.58843840846333E-15 -4.710382060864841E-15 1.434479387460988E-13 1.031835558773328E-14 -3.108087146396534E-14 4.987439944683941E-16
q -4.710382060864841E-15 1.448168088130058E-14 -1.132052337466056E-12 -3.046590340039754E-14 9.625063134103528E-15 -9.518104314949769E-16
tp 1.434479387460988E-13 -1.132052337466056E-12 3.166205214148666E-8 -1.117156950057177E-11 5.77509598340657E-9 -1.371661016394612E-11
node 1.031835558773328E-14 -3.046590340039754E-14 -1.117156950057177E-11 6.222288928749161E-10 -6.15529741388015E-10 6.607398891010181E-12
peri -3.108087146396534E-14 9.625063134103528E-15 5.77509598340657E-9 -6.15529741388015E-10 1.672280000921735E-9 -8.972168361272037E-12
i 4.987439944683941E-16 -9.518104314949769E-16 -1.371661016394612E-11 6.607398891010181E-12 -8.972168361272037E-12 1.547388259834314E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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