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20248 (1998 EE10)
Classification: Main-belt Asteroid          SPK-ID: 2020248
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151182637214031 1.9568e-08  
a 2.263667987111177 6.6111e-09 au
q 1.921440691042732 4.5453e-08 au
i 4.508354701242233 9.4893e-07 deg
node 22.46838065921671 7.4885e-06 deg
peri 269.2307916182436 1.2025e-05 deg
M 149.8620548364815 8.3315e-06 deg
tp 2458682.646753960038
(2019-Jul-18.14675396)
2.8248e-05 TDB
period 1243.991808185214
3.41
5.4497e-06
1.492e-08
d
yr
n .2893909731810716 1.2678e-09 deg/d
Q 2.605895283179622 7.6106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2102  
   data-arc span      14617 days (40.02 yr)  
   first obs. used      1981-03-04  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:16:06  

Additional Information
 Earth MOID = .909946 au 
 Jupiter MOID = 2.56979 au 
 T_jup = 3.599 
[ 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 14.15   n/a E2021B10  
rotation period rot_per 5.61681 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

20248 (1998 EE10)          Discovered 1998-Mar-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EE10 = 1981 EB2 = 1981 EF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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