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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0789919652550434 8.8026e-09  
a 2.195725774749232 4.3114e-09 au
q 2.022281080640638 1.8512e-08 au
i 5.203523596794957 1.1132e-06 deg
node 7.749774392559252 3.9007e-06 deg
peri 116.5518360225611 1.4187e-05 deg
M 283.8987437365607 1.5404e-05 deg
tp 2459647.720399582962
(2022-Mar-09.22039958)
5.1013e-05 TDB
period 1188.408027546784
3.25
3.5002e-06
9.583e-09
d
yr
n .3029262607247307 8.9221e-10 deg/d
Q 2.369170468857827 4.6519e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3402  
   data-arc span      38650 days (105.82 yr)  
   first obs. used      1915-03-21  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:53:45  

Additional Information
 Earth MOID = 1.0441 au 
 Jupiter MOID = 2.65763 au 
 T_jup = 3.660 
[ 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 12.81   n/a MPCxxxxx  
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. 2020-October); 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.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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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