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22298 (1990 EJ)
Classification: Main-belt Asteroid          SPK-ID: 2022298
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613558875619009 1.5877e-08  
a 3.099350391635239 1.5536e-08 au
q 2.59925195832761 5.2758e-08 au
i 8.857825390008275 7.7763e-07 deg
node 345.4295880549652 2.0159e-06 deg
peri 212.2524750919453 7.185e-06 deg
M 204.0721071607965 1.0413e-05 deg
tp 2460063.728463900129
(2023-Apr-29.22846390)
6.1542e-05 TDB
period 1992.986895067656
5.46
1.4986e-05
4.103e-08
d
yr
n .1806334004959822 1.3582e-09 deg/d
Q 3.599448824942868 1.8043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2534  
   data-arc span      19360 days (53.00 yr)  
   first obs. used      1968-02-25  
   last obs. used      2021-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46407  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:03:52  

Additional Information
 Earth MOID = 1.60275 au 
 Jupiter MOID = 1.40774 au 
 T_jup = 3.184 
[ 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 12.64   n/a E2021B10  
rotation period rot_per 2.985538 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

22298 (1990 EJ)          Discovered 1990-Mar-02 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 EJ = 1968 DJ = 1998 SE110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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