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24920 (1997 EE23)
Classification: Main-belt Asteroid          SPK-ID: 2024920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0720013589242005 2.1402e-08  
a 2.39250869717028 8.2415e-09 au
q 2.220244819736051 5.1068e-08 au
i 7.812626694998656 7.1309e-07 deg
node 99.17571286468883 3.3515e-06 deg
peri 2.18671052728135 8.6037e-06 deg
M 232.8131357804544 7.7594e-06 deg
tp 2459678.049587037758
(2022-Apr-08.54958704)
3.0773e-05 TDB
period 1351.695022819606
3.70
6.9843e-06
1.912e-08
d
yr
n .2663322672070272 1.3762e-09 deg/d
Q 2.564772574604508 8.8349e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1896  
   data-arc span      8618 days (23.59 yr)  
   first obs. used      1997-03-02  
   last obs. used      2020-10-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:51:21  

Additional Information
 Earth MOID = 1.23697 au 
 Jupiter MOID = 2.53414 au 
 T_jup = 3.515 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.28   n/a E2021B10  
rotation period rot_per 24.841 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

24920 (1997 EE23)          Discovered 1997-Mar-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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