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JPL Small-Body Database Browser
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19098 (1981 EM3)
Classification: Main-belt Asteroid          SPK-ID: 2019098
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07123057850117034 4.041e-08  
a 2.263666875437592 9.6198e-09 au
q 2.102424574366236 9.1699e-08 au
i 5.835460599020863 4.5757e-06 deg
node 251.9438830676815 4.3738e-05 deg
peri 170.7392930343954 5.6221e-05 deg
M 177.3591227517687 3.7578e-05 deg
tp 2457987.630185326026
(2017-Aug-22.13018533)		 0.00012797 TDB
period 1243.990891810106
3.41		 7.9298e-06
2.171e-08		 d
yr
n .2893911863584236 1.8447e-09 deg/d
Q 2.424909176508948 1.0305e-08 au
   Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      14078 days (38.54 yr)  
   first obs. used      1981-02-02  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54372  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:27:16  

Additional Information
 Earth MOID = 1.11547 au 
 Jupiter MOID = 2.78216 au 
 T_jup = 3.608 
[ 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 15.4   n/a MPO279714  

19098 (1981 EM3)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EM3 = 1993 XA1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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