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22558 Mladen (1998 HH3)
Classification: Main-belt Asteroid          SPK-ID: 2022558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04983197624019794 4.1698e-08  
a 2.201056083667338 6.9703e-09 au
q 2.091373109202684 9.4062e-08 au
i .7723259733017589 4.0046e-06 deg
node 72.93270127611174 0.00028933 deg
peri 76.74317614368096 0.00029257 deg
M 38.57673706177137 4.2731e-05 deg
tp 2459072.689044965892
(2020-Aug-11.18904497)
0.00014146 TDB
period 1192.738093390372
3.27
5.6657e-06
1.551e-08
d
yr
n .3018265300613447 1.4337e-09 deg/d
Q 2.310739058131992 7.3176e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      9575 days (26.21 yr)  
   first obs. used      1994-01-17  
   last obs. used      2020-04-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50575  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:36  

Additional Information
 Earth MOID = 1.10193 au 
 Jupiter MOID = 2.66487 au 
 T_jup = 3.663 
[ 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 15.84   n/a E2021B10  
diameter diameter 1.658 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.452 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.213   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22558 Mladen           Discovered 1998 Apr. 22 by P. Kolény and L. Kornoš at Modra.
Mladen Kolény, Sr. (1925-1995), father of the first discoverer, taught geography and biology at grammar school. Mladen Kolény, Jr. (1951-2007), brother of the first discoverer, gave lectures on physical geography at Comenius University.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

Alternate Designations
 1998 HH3 = 1999 RH225 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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