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17376 (1981 EQ4)
Classification: Main-belt Asteroid          SPK-ID: 2017376
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378564642834994 5.7001e-08  
a 3.115308875727021 2.2644e-08 au
q 2.68584340896829 1.8024e-07 au
i 8.502094747428902 5.517e-06 deg
node 228.3368851600427 3.7812e-05 deg
peri 273.3300422257287 4.3255e-05 deg
M 11.22593459734544 1.9474e-05 deg
tp 2458537.871775106410
(2019-Feb-23.37177511)
0.00010873 TDB
period 2008.399458074851
5.50
2.1897e-05
5.995e-08
d
yr
n .179247210286084 1.9543e-09 deg/d
Q 3.544774342485752 2.5765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      15701 days (42.99 yr)  
   first obs. used      1976-05-03  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:18:37  

Additional Information
 Earth MOID = 1.71602 au 
 Jupiter MOID = 1.61476 au 
 T_jup = 3.186 
[ 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 14.2   n/a MPO384903  
diameter diameter 8.981 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17376 (1981 EQ4)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EQ4 = 1976 JQ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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