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17373 (1981 EQ3)
Classification: Main-belt Asteroid          SPK-ID: 2017373
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2143896508316647 5.1281e-08  
a 3.140246119059359 2.2374e-08 au
q 2.467009850068733 1.625e-07 au
i 12.96683649667942 5.6692e-06 deg
node 311.3134025437101 1.9378e-05 deg
peri 12.79555544881103 2.1996e-05 deg
M 265.3096696376771 1.4163e-05 deg
tp 2459735.122323667205
(2022-Jun-04.62232367)
8.4092e-05 TDB
period 2032.562731418823
5.56
2.1723e-05
5.947e-08
d
yr
n .177116304670559 1.8929e-09 deg/d
Q 3.813482388049986 2.7171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      14630 days (40.05 yr)  
   first obs. used      1981-02-02  
   last obs. used      2021-02-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58801  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:08  

Additional Information
 Earth MOID = 1.45429 au 
 Jupiter MOID = 1.53099 au 
 T_jup = 3.136 
[ 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 13.71   n/a E2021B10  
diameter diameter 9.655 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17373 (1981 EQ3)          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 EQ3 = 1994 RT29 = 1997 BU9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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