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91124 (1998 HA118)
Classification: Main-belt Asteroid          SPK-ID: 2091124
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1692006489362758 3.9563e-08  
a 2.795690167979488 1.2517e-08 au
q 2.322657577332593 1.1344e-07 au
i 8.897783307087716 4.1988e-06 deg
node 121.7130364170997 2.3435e-05 deg
peri 72.21321191311702 2.6224e-05 deg
M 358.6510912138172 1.1801e-05 deg
tp 2459402.897526127788
(2021-Jul-07.39752613)
5.5979e-05 TDB
period 1707.38705952168
4.67
1.1466e-05
3.139e-08
d
yr
n .2108484997542696 1.416e-09 deg/d
Q 3.268722758626383 1.4635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1048  
   data-arc span      12195 days (33.39 yr)  
   first obs. used      1988-02-11  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:08  

Additional Information
 Earth MOID = 1.34213 au 
 Jupiter MOID = 1.75512 au 
 T_jup = 3.289 
[ 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 15.01   n/a MPO637239  

91124 (1998 HA118)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 HA118 = 1988 CZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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