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74049 (1998 HA123)
Classification: Main-belt Asteroid          SPK-ID: 2074049
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537481087198233 3.7698e-08  
a 2.238512425012069 7.6788e-09 au
q 1.894345373320638 8.3745e-08 au
i 7.292482302002891 4.34e-06 deg
node 77.59812156171709 2.9147e-05 deg
peri 183.049362420456 3.1666e-05 deg
M 185.356996245173 1.3051e-05 deg
tp 2459593.953072178984
(2022-Jan-14.45307218)
4.5616e-05 TDB
period 1223.313281328794
3.35
6.2945e-06
1.723e-08
d
yr
n .2942827528275985 1.5142e-09 deg/d
Q 2.5826794767035 8.8594e-09 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      7948 days (21.76 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:09:53  

Additional Information
 Earth MOID = .879013 au 
 Jupiter MOID = 2.47573 au 
 T_jup = 3.610 
[ 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 15.7   n/a MPO337816  

74049 (1998 HA123)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HA123 = 2005 PJ23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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