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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613558875615006 1.5877e-08  
a 3.099350391559133 1.5534e-08 au
q 2.599251958265025 5.2758e-08 au
i 8.857825389711975 7.7762e-07 deg
node 345.4295880542747 2.0159e-06 deg
peri 212.2524750916339 7.1849e-06 deg
M 204.07210717665 1.0413e-05 deg
tp 2460063.728463780567
(2023-Apr-29.22846378)
6.1539e-05 TDB
period 1992.986894994248
5.46
1.4984e-05
4.102e-08
d
yr
n .1806334005026355 1.358e-09 deg/d
Q 3.599448824853242 1.8041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2544  
   data-arc span      19382 days (53.07 yr)  
   first obs. used      1968-02-25  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46324  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:19:34  

Additional Information
 Earth MOID = 1.60275 au 
 Jupiter MOID = 1.40774 au 
 T_jup = 3.184 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457489.5 (2016-Apr-11.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609567128037654 1.5976e-08  
q 2.600996381757682 5.3153e-08 au
tp 2458074.226826115624
(2017-Nov-16.72682612)
5.3368e-05 TDB
node 345.5270936102043 2.0081e-06 deg
peri 212.862278819558 7.1959e-06 deg
i 8.862860081925639 7.7814e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2544  
   data-arc span      19382 days (53.07 yr)  
   first obs. used      1968-02-25  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46324  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:19:34  

Additional Information
 Jupiter MOID = 1.40774 au 
 T_jup = 3.184 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.552245170810164E-16 -8.23389923666849E-16 -1.807899412755154E-13 1.46125286167508E-14 -3.049210866944537E-14 2.338818020733362E-15
q -8.23389923666849E-16 2.82519076163013E-15 8.743527252092621E-13 -4.265329948443053E-14 1.232284824868844E-13 -6.612597606108765E-15
tp -1.807899412755154E-13 8.743527252092621E-13 2.848119520125076E-9 5.268842051110099E-12 3.697199564517687E-10 1.541003160859683E-12
node 1.46125286167508E-14 -4.265329948443053E-14 5.268842051110099E-12 4.032609687111917E-12 -2.461224251806492E-12 9.350437707735346E-13
peri -3.049210866944537E-14 1.232284824868844E-13 3.697199564517687E-10 -2.461224251806492E-12 5.178123529165234E-11 -5.674495568885086E-13
i 2.338818020733362E-15 -6.612597606108765E-15 1.541003160859683E-12 9.350437707735346E-13 -5.674495568885086E-13 6.055007063494088E-13

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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