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37854 (1998 EY11)
Classification: Main-belt Asteroid          SPK-ID: 2037854
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2002950313526004 3.6425e-08  
a 2.371035030520598 9.0607e-09 au
q 1.896128494744361 8.7214e-08 au
i 8.648363905019931 4.4819e-06 deg
node 17.71369191396822 2.8242e-05 deg
peri 267.3753741566209 3.0323e-05 deg
M 297.1583912779795 1.1305e-05 deg
tp 2459233.282418538314
(2021-Jan-18.78241854)
4.2246e-05 TDB
period 1333.537959610318
3.65
7.644e-06
2.093e-08
d
yr
n .2699585695372316 1.5474e-09 deg/d
Q 2.845941566296835 1.0875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1229  
   data-arc span      15450 days (42.30 yr)  
   first obs. used      1977-10-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:39:41  

Additional Information
 Earth MOID = .904202 au 
 Jupiter MOID = 2.37551 au 
 T_jup = 3.502 
[ 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 14.6   n/a MPO333153  
diameter diameter 3.609 km 0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.112 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.200   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37854 (1998 EY11)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EY11 = 1977 UG = 1999 RG96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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