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19100 (1981 EH5)
Classification: Main-belt Asteroid          SPK-ID: 2019100
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06349540287481178 4.2111e-08  
a 3.073148401420872 2.6583e-08 au
q 2.87801760557857 1.3391e-07 au
i 8.97721384654808 4.8411e-06 deg
node 238.686694231943 2.7747e-05 deg
peri 116.1096034884977 4.6595e-05 deg
M 325.6015054056032 3.9445e-05 deg
tp 2459388.522863208360
(2021-Jun-23.02286321)
0.00021682 TDB
period 1967.76723961738
5.39
2.5532e-05
6.99e-08
d
yr
n .1829484670504016 2.3738e-09 deg/d
Q 3.268279197263174 2.8271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      14402 days (39.43 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:45:46  

Additional Information
 Earth MOID = 1.88722 au 
 Jupiter MOID = 2.04541 au 
 T_jup = 3.208 
[ 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 14.35   n/a E2021B10  
diameter diameter 3.872 km 0.875 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.246   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19100 (1981 EH5)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EH5 = 1998 KP48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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