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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07116880662244758 4.0357e-08  
a 2.26264403021739 9.6556e-09 au
q 2.101614354775413 9.1546e-08 au
i 5.834397627930575 4.5747e-06 deg
node 251.932640968528 4.3766e-05 deg
peri 171.3977478733946 5.6298e-05 deg
M 292.4396122062128 3.8048e-05 deg
tp 2459233.798749508971
(2021-Jan-19.29874951)
0.00013213 TDB
period 1243.147835083223
3.40
7.9575e-06
2.179e-08
d
yr
n .2895874407213199 1.8537e-09 deg/d
Q 2.423673705659367 1.0343e-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 = 1.11507 au 
 Jupiter MOID = 2.77996 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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