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2299 Hanko (1941 SZ)
Classification: Main-belt Asteroid          SPK-ID: 2002299
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2956276973323584 3.7349e-08  
a 2.58575937895938 6.7611e-09 au
q 1.82133728790207 9.5936e-08 au
i 5.255571126190703 4.2125e-06 deg
node 174.152955974927 2.8961e-05 deg
peri 165.8605251569413 2.9501e-05 deg
M 79.10151485627863 4.799e-06 deg
tp 2459062.794864905212
(2020-Aug-01.29486491)
2.0204e-05 TDB
period 1518.730062912168
4.16
5.9567e-06
1.631e-08
d
yr
n .2370401487343309 9.297e-10 deg/d
Q 3.350181470016691 8.7599e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2816  
   data-arc span      29060 days (79.56 yr)  
   first obs. used      1941-09-20  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:35:11  

Additional Information
 Earth MOID = .812672 au 
 Jupiter MOID = 2.06936 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2960914569956308 3.7289e-08  
q 1.819768932547563 9.5858e-08 au
tp 2457545.757321162192
(2016-Jun-06.25732116)
2.1158e-05 TDB
node 174.2089078297816 2.896e-05 deg
peri 166.0412603073364 2.9499e-05 deg
i 5.256264090860012 4.2138e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2816  
   data-arc span      29060 days (79.56 yr)  
   first obs. used      1941-09-20  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:35:11  

Additional Information
 Jupiter MOID = 2.06936 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.390478158347655E-15 -3.570060078547001E-15 3.599553943897241E-13 -6.50592503536257E-15 7.953180260221532E-14 -2.953547219920176E-15
q -3.570060078547001E-15 9.18876857921141E-15 -9.623916175699839E-13 1.732563706379323E-14 -2.13525477813116E-13 7.822004369824831E-15
tp 3.599553943897241E-13 -9.623916175699839E-13 4.476769278883046E-10 -4.328153987549237E-12 1.237818052573069E-10 -1.568735046599452E-12
node -6.50592503536257E-15 1.732563706379323E-14 -4.328153987549237E-12 8.386620739267164E-10 -8.355419496000026E-10 3.249758270817574E-11
peri 7.953180260221532E-14 -2.13525477813116E-13 1.237818052573069E-10 -8.355419496000026E-10 8.701987198338565E-10 -3.271296017851898E-11
i -2.953547219920176E-15 7.822004369824831E-15 -1.568735046599452E-12 3.249758270817574E-11 -3.271296017851898E-11 1.775651631977343E-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 13.32   n/a MPCxxxxx  
diameter diameter 6.521 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2299 Hanko (1941 SZ)          Discovered 1941-Sep-25 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1941 SZ = 1941 SH1 = 1966 UP = 1970 PQ = 1978 NA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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