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17390 (1981 EZ37)
Classification: Main-belt Asteroid          SPK-ID: 2017390
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05647241132469331 4.6606e-08  
a 3.121342331067431 2.1348e-08 au
q 2.945072603062214 1.4326e-07 au
i 7.338868765686744 5.2344e-06 deg
node 190.0653635502803 3.1949e-05 deg
peri 211.9516112587418 4.9924e-05 deg
M 204.3749326470985 4.0038e-05 deg
tp 2460071.238168132085
(2023-May-06.73816813)
0.00022727 TDB
period 2014.236818395864
5.51
2.0664e-05
5.657e-08
d
yr
n .1787277427917853 1.8335e-09 deg/d
Q 3.297612059072648 2.2553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      15236 days (41.71 yr)  
   first obs. used      1978-10-03  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55821  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:24  

Additional Information
 Earth MOID = 1.95423 au 
 Jupiter MOID = 1.97979 au 
 T_jup = 3.201 
[ 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 14.26   n/a E2021B10  
diameter diameter 7.860 km 0.411 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.47535 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17390 (1981 EZ37)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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