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JPL Small-Body Database Browser
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589 Croatia (A906 EC)
Classification: Main-belt Asteroid          SPK-ID: 2000589
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03916050498492945 3.1741e-08  
a 3.133800993616521 1.1932e-08 au
q 3.011079764184225 1.0097e-07 au
i 10.79649010865587 3.6656e-06 deg
node 177.4665971459882 2.0101e-05 deg
peri 227.2182365983846 5.4317e-05 deg
M 265.0114164851365 5.1326e-05 deg
tp 2459135.156016647059
(2020-Oct-12.65601665)
0.0002891 TDB
period 2026.308413819259
5.55
1.1572e-05
3.168e-08
d
yr
n .1776629843437599 1.0146e-09 deg/d
Q 3.256522223048818 1.2399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3045  
   data-arc span      41551 days (113.76 yr)  
   first obs. used      1906-03-04  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45208  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:45:39  

Additional Information
 Earth MOID = 2.02677 au 
 Jupiter MOID = 1.91813 au 
 T_jup = 3.184 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.0   n/a MPO431498  
diameter diameter 93.617 km 1.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 24.821 h n/a LCDB (Rev. 2019-January); 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:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.]
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.730   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.22, mean=5.38, max.=5.53) deg.
U-B UB 0.368   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.22, mean=5.38, max.=5.53) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

589 Croatia (A906 EC)          Discovered 1906-Mar-03 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Apr-14 10:07 00:02 Jupiter 1.99953368692419 1.99953329296458 1.9995340808847 4.55075610558467 4.45669845085049 2416218.921623813 1.80288921003705 128.100882639206 15.4304579124418 -84.4193860651351 4725878.21436549 T 77 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:57 2019-Dec-13 20:46
1986-Aug-26 21:18 < 00:01 Jupiter 1.97803807472461 1.97803774908707 1.97803840036215 4.7247242525632 4.63320540825405 2446669.387471286 0.418585954306918 44.3527465454685 15.0623750409919 -89.8051666173347 4918253.9212243 T 77 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:57 2019-Dec-13 20:46
2070-Jan-08 04:06 < 00:01 Jupiter 1.96075016488065 1.96074984416101 1.96075048560029 4.82017697046674 4.7297069690974 2477119.670758422 0.986518301667482 83.6464500306539 14.5192233264325 -87.4717842183195 5107739.80798988 T 77 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:57 2019-Dec-13 20:46
2153-May-23 11:54 00:02 Jupiter 1.97063724863727 1.97063690243188 1.97063759484412 4.86381757501989 4.77462858676876 2507569.995619849 2.35369080572184 187.648253456496 14.2701225476121 87.5885009135317 5206053.68504447 T 77 CATAB v2.0f-lin.ifort 2019-Dec-13 20:45:57 2019-Dec-13 20:46

Alternate Designations
 A906 EC = 1936 WM = 1947 RA = 1953 RF1 = 1953 VR1 = 1953 VU = A912 HH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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