Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2263204356712938 3.4785e-08  
a 2.308074354198563 5.0142e-09 au
q 1.785709960794604 8.0402e-08 au
i 4.347315070976147 3.2281e-06 deg
node 292.0438085013969 4.5006e-05 deg
peri 16.91090163867636 4.5461e-05 deg
M 104.1220924519805 6.5551e-06 deg
tp 2459026.063726707157
(2020-Jun-25.56372671)
2.335e-05 TDB
period 1280.775820433361
3.51
4.1737e-06
1.143e-08
d
yr
n .2810796349030005 9.1596e-10 deg/d
Q 2.830438747602522 6.1491e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1844  
   data-arc span      10420 days (28.53 yr)  
   first obs. used      1992-09-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:59:50  

Additional Information
 Earth MOID = .77098 au 
 Jupiter MOID = 2.43565 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457433.5 (2016-Feb-15.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2259078972041583 3.4757e-08  
q 1.787149354227375 8.0294e-08 au
tp 2457745.476153644653
(2016-Dec-22.97615364)
2.4045e-05 TDB
node 292.0686432880886 4.5019e-05 deg
peri 16.94770058667542 4.5475e-05 deg
i 4.346004608483065 3.227e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1844  
   data-arc span      10420 days (28.53 yr)  
   first obs. used      1992-09-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:59:50  

Additional Information
 Jupiter MOID = 2.43565 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.208070420395655E-15 -2.787490613288615E-15 4.077651849350126E-13 1.999679854077621E-14 8.293481575953617E-14 -2.559846316609402E-15
q -2.787490613288615E-15 6.44710943164623E-15 -9.627683185479688E-13 -4.681654315324984E-14 -1.982044520361511E-13 5.959758898714587E-15
tp 4.077651849350126E-13 -9.627683185479688E-13 5.781607052932544E-10 1.467354599540439E-11 1.658185909060908E-10 -1.171360366154665E-12
node 1.999679854077621E-14 -4.681654315324984E-14 1.467354599540439E-11 2.026724491736627E-9 -2.016507224393585E-9 6.558707211118957E-11
peri 8.293481575953617E-14 -1.982044520361511E-13 1.658185909060908E-10 -2.016507224393585E-9 2.067972039238441E-9 -6.573411764286645E-11
i -2.559846316609402E-15 5.959758898714587E-15 -1.171360366154665E-12 6.558707211118957E-11 -6.573411764286645E-11 1.041344861430197E-11

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-24 22:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin