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56072 (1998 YK8)
Classification: Main-belt Asteroid          SPK-ID: 2056072
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1347406931635625 2.7616e-08  
a 2.304182253403476 6.6761e-09 au
q 1.993715139404712 6.4398e-08 au
i 5.404651337121992 3.2194e-06 deg
node 129.6167654023735 3.3159e-05 deg
peri 79.44013689870175 3.5324e-05 deg
M 327.1451506773641 1.2225e-05 deg
tp 2459117.092508690518
(2020-Sep-24.59250869)
4.3504e-05 TDB
period 1277.537532326118
3.50
5.5523e-06
1.52e-08
d
yr
n .2817921124747845 1.2247e-09 deg/d
Q 2.61464936740224 7.5756e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1625  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:04:05  

Additional Information
 Earth MOID = .997383 au 
 Jupiter MOID = 2.3585 au 
 T_jup = 3.571 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456940.5 (2014-Oct-10.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .134961445908265 2.7593e-08  
q 1.993427230438887 6.4372e-08 au
tp 2456562.168073655814
(2013-Sep-26.66807366)
4.2119e-05 TDB
node 129.6483912220128 3.315e-05 deg
peri 79.50361621730801 3.5309e-05 deg
i 5.405163013299765 3.2199e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1625  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:04:05  

Additional Information
 Jupiter MOID = 2.3585 au 
 T_jup = 3.571 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.613848382392751E-16 -1.769178675351094E-15 5.24951988251878E-14 -1.537530325985265E-15 2.064473818421985E-14 -1.598932722433589E-15
q -1.769178675351094E-15 4.143811324319632E-15 -1.236963714828079E-13 3.412283041963712E-15 -4.656191321451853E-14 3.784920285338997E-15
tp 5.24951988251878E-14 -1.236963714828079E-13 1.774030236567009E-9 1.260379424829385E-12 5.208014608615392E-10 -9.933234511297823E-13
node -1.537530325985265E-15 3.412283041963712E-15 1.260379424829385E-12 1.098909112320802E-9 -1.093274274395029E-9 -1.046686114243629E-12
peri 2.064473818421985E-14 -4.656191321451853E-14 5.208014608615392E-10 -1.093274274395029E-9 1.246731971716729E-9 7.786280769927373E-13
i -1.598932722433589E-15 3.784920285338997E-15 -9.933234511297823E-13 -1.046686114243629E-12 7.786280769927373E-13 1.036797832150268E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO417209  
diameter diameter 1.574 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.593   0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56072 (1998 YK8)          Discovered 1998-Dec-24 by Kobayashi, T. at Oizumi
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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