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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348577638024437 2.673e-08  
a 2.304908349453957 6.3696e-09 au
q 1.994073563677015 6.2036e-08 au
i 5.404712904259256 3.1648e-06 deg
node 129.616649268973 3.2241e-05 deg
peri 79.61785466523119 3.4388e-05 deg
M 78.55824211338353 1.2167e-05 deg
tp 2459117.587374065973
(2020-Sep-25.08737407)
4.2897e-05 TDB
period 1278.141448116032
3.50
5.2982e-06
1.451e-08
d
yr
n .2816589670342328 1.1675e-09 deg/d
Q 2.615743135230899 7.2286e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1998-12-16  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:19:32  

Additional Information
 Earth MOID = .998337 au 
 Jupiter MOID = 2.35541 au 
 T_jup = 3.571 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350520207169375 2.6683e-08  
q 1.993071076755892 6.199e-08 au
tp 2456562.187541134048
(2013-Sep-26.68754113)
4.1425e-05 TDB
node 129.6485477933842 3.2237e-05 deg
peri 79.48966412272155 3.4384e-05 deg
i 5.405187025119481 3.1655e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1998-12-16  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:19:32  

Additional Information
 Jupiter MOID = 2.35541 au 
 T_jup = 3.571 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.119717969316329E-16 -1.64734733256167E-15 2.450683743854369E-14 -1.034464231246296E-15 9.781513752838396E-15 -1.37598660933189E-15
q -1.64734733256167E-15 3.842713479980742E-15 -5.554166168247614E-14 2.062216672582926E-15 -1.974829851135687E-14 3.249607639810117E-15
tp 2.450683743854369E-14 -5.554166168247614E-14 1.716055647073531E-9 -4.191591102211583E-13 5.035342114528669E-10 -9.599799519313315E-13
node -1.034464231246296E-15 2.062216672582926E-15 -4.191591102211583E-13 1.039235606290153E-9 -1.03434668655983E-9 -8.794185745640517E-13
peri 9.781513752838396E-15 -1.974829851135687E-14 5.035342114528669E-10 -1.03434668655983E-9 1.182254469999276E-9 6.253393757805661E-13
i -1.37598660933189E-15 3.249607639810117E-15 -9.599799519313315E-13 -8.794185745640517E-13 6.253393757805661E-13 1.002025570152539E-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 15.11   n/a E2021B10  
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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