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22438 (1996 HQ19)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022438
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1157267219967395 2.8918e-08  
a 3.206051857056502 1.8849e-08 au
q 2.835025985087793 8.8856e-08 au
i .6264460018915048 3.8116e-06 deg
node 154.6923777679197 0.00028651 deg
peri 87.45326584072967 0.00028706 deg
M 87.05555885459771 1.6677e-05 deg
tp 2458693.452964471323
(2019-Jul-28.95296447)
9.7363e-05 TDB
period 2096.786640531493
5.74
1.8491e-05
5.063e-08
d
yr
n .1716912884892987 1.5141e-09 deg/d
Q 3.57707772902521 2.1031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1508  
   data-arc span      8999 days (24.64 yr)  
   first obs. used      1996-04-18  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50535  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:06:21  

Additional Information
 Earth MOID = 1.82085 au 
 Jupiter MOID = 1.43255 au 
 T_jup = 3.182 
[ 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 14.14   n/a E2021B10  

22438 (1996 HQ19)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1996 HQ19 = 1998 SG145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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