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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1347407011834588 2.8867e-08  
a 2.304182255056389 6.897e-09 au
q 1.993715122355608 6.6831e-08 au
i 5.404651216617365 3.2326e-06 deg
node 129.6167759584236 3.4868e-05 deg
peri 79.44012707780927 3.6888e-05 deg
M 327.1451489302698 1.2325e-05 deg
tp 2459117.092515015916
(2020-Sep-24.59251502)
4.3878e-05 TDB
period 1277.537533700787
3.50
5.736e-06
1.57e-08
d
yr
n .2817921121715677 1.2652e-09 deg/d
Q 2.61464938775717 7.8263e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1490  
   data-arc span      7720 days (21.14 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:41:21  

Additional Information
 Earth MOID = .997383 au 
 Jupiter MOID = 2.3585 au 
 T_jup = 3.571 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456801.5 (2014-May-24.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1349070455421339 2.8842e-08  
q 1.993607808508709 6.6796e-08 au
tp 2456562.176840008496
(2013-Sep-26.67684001)
4.224e-05 TDB
node 129.6483467944484 3.4859e-05 deg
peri 79.51569391319056 3.6875e-05 deg
i 5.405036230373683 3.2331e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1490  
   data-arc span      7720 days (21.14 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:41:21  

Additional Information
 Jupiter MOID = 2.3585 au 
 T_jup = 3.571 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.318323797389838E-16 -1.918835371723827E-15 7.558711037843229E-14 -8.559997298212207E-16 2.319710495589406E-14 -1.791365444384474E-15
q -1.918835371723827E-15 4.461648937638606E-15 -1.725766715260788E-13 2.255450512303973E-15 -5.218603943015653E-14 4.183989674088379E-15
tp 7.558711037843229E-14 -1.725766715260788E-13 1.784225189428554E-9 5.744295976184835E-12 5.181654717413353E-10 -1.175823540702926E-12
node -8.559997298212207E-16 2.255450512303973E-15 5.744295976184835E-12 1.215126944836084E-9 -1.207696271136077E-9 -3.836598150094909E-12
peri 2.319710495589406E-14 -5.218603943015653E-14 5.181654717413353E-10 -1.207696271136077E-9 1.359749663064415E-9 3.512472561380373E-12
i -1.791365444384474E-15 4.183989674088379E-15 -1.175823540702926E-12 -3.836598150094909E-12 3.512472561380373E-12 1.045283015327035E-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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