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JPL Small-Body Database Browser
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802 Epyaxa (A915 FJ)
Classification: Main-belt Asteroid          SPK-ID: 2000802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07858120286967805 3.0577e-08  
a 2.195945745387901 5.0973e-09 au
q 2.023385687278768 6.6736e-08 au
i 5.202224914520647 4.8906e-06 deg
node 7.826439649155525 3.0818e-05 deg
peri 115.6155909361078 4.3019e-05 deg
M 43.78176974581357 2.9577e-05 deg
tp 2458455.948817883840
(2018-Dec-03.44881788)
9.7631e-05 TDB
period 1188.586616391713
3.25
4.1385e-06
1.133e-08
d
yr
n .302880745109583 1.0546e-09 deg/d
Q 2.368505803497034 5.4979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2782  
   data-arc span      38034 days (104.13 yr)  
   first obs. used      1915-03-21  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4273  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:14:04  

Additional Information
 Earth MOID = 1.04526 au 
 Jupiter MOID = 2.66276 au 
 T_jup = 3.659 
[ 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 12.7   n/a MPO435702  
diameter diameter 7.423 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.392 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Bennefeld, C.; Aguilar, V.; Cooper, T.; Hupp, W.; et al. (2009) Minor Planet Bull. 36, 123-124.]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Warner, B.D (2012) Minor Planet Bull. 39, 69-80.]
[Stephens, R.D. (2015) Minor Planet Bull. 42, 104-106.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2018) Icarus 309, 297-337.]
geometric albedo albedo 0.292   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

802 Epyaxa (A915 FJ)          Discovered 1915-Mar-20 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A915 FJ = 1930 YK = 1931 AX = 1970 AM1 = 1972 XW = 1977 FG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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