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21384 (1998 EB10)
Classification: Main-belt Asteroid          SPK-ID: 2021384
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2263900325510135 3.4879e-08  
a 2.30787157366312 5.0519e-09 au
q 1.785392452977967 8.0617e-08 au
i 4.347409000008107 3.2341e-06 deg
node 292.0422215705944 4.5332e-05 deg
peri 16.88627151153435 4.58e-05 deg
M 49.04564227794685 6.6032e-06 deg
tp 2459026.032792758704
(2020-Jun-25.53279276)
2.3519e-05 TDB
period 1280.607036419785
3.51
4.2049e-06
1.151e-08
d
yr
n .2811166812002363 9.2305e-10 deg/d
Q 2.830350694348273 6.1957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1826  
   data-arc span      10354 days (28.35 yr)  
   first obs. used      1992-09-07  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:52:19  

Additional Information
 Earth MOID = .769231 au 
 Jupiter MOID = 2.43642 au 
 T_jup = 3.548 
[ 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 15.09   n/a E2021B10  
rotation period rot_per 3.22 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

21384 (1998 EB10)          Discovered 1998-Mar-01 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EB10 = 1999 RR105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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