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6144 Kondojiro (1994 EQ3)
Classification: Asteroid          SPK-ID: 2006144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .3608005249901032 2.9812e-08  
a 4.764123949468334 4.126e-08 au
q 3.045225527382235 1.5508e-07 au
i 5.883461495035053 3.9377e-06 deg
node 117.0862942131075 4.8037e-05 deg
peri 96.46061917886479 4.8447e-05 deg
M 186.3046693724004 6.8503e-06 deg
tp 2460833.061878222730
(2025-Jun-06.56187822)
9.0772e-05 TDB
period 3798.157807561437
10.40
4.9341e-05
1.351e-07
d
yr
n .09478279161632144 1.2313e-09 deg/d
Q 6.483022371554433 5.6146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1409  
   data-arc span      24047 days (65.84 yr)  
   first obs. used      1954-12-22  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5532  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:38:03  

Additional Information
 Earth MOID = 2.04691 au 
 Jupiter MOID = .202835 au 
 T_jup = 2.868 
[ 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 11.6   n/a MPO425867  
diameter diameter 32.492 km 1.094 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 4.0 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.042   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

6144 Kondojiro           Discovered 1994 Mar. 14 by K. Endate and K. Watanabe at Kitami.
As an amateur astronomer, Jiro Kondo (b. 1951) went to Siberia to observe the Draconid meteor shower in 1972. A professional Egyptologist since 1976, he has excavated a number of archaeological sites. He also studies the history of ancient Egyptian astronomy. He is a professor at Waseda University.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

[ 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
1905-Dec-25 01:27 00:03 Jupiter 0.807968316639723 0.807916584094799 0.808020050081385 4.20040240679151 3.94293136871808 2417204.560420746 3.08042413297153 2930.42501323715 107.141278308364 -27.3687612346611 581312.357129102 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
1939-Mar-18 08:24 01:05 Jupiter 1.39005084760191 1.38969471330622 1.39040698400336 9.26052790192978 9.19449205615051 2429340.849938250 65.1549813128457 17963.8042451983 66.0366848511139 -10.7402624043199 414470.733820056 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
1953-Nov-30 04:28 < 00:01 Jupiter 0.333613459949317 0.333610385766119 0.333616535316801 5.70055076120292 5.23625927776023 2434711.685826451 0.501234376607708 1147.42611800302 63.4763261970576 -81.4638136625505 856187.663987926 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
1986-Jun-29 11:10 < 00:01 Jupiter 0.597149801970866 0.597148199703001 0.597151404239071 7.10117016216118 6.89853123122161 2446610.965273071 0.427307213462956 86.7054126768039 55.0123036707269 32.2766934053067 1052208.08945938 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2000-Dec-05 16:16 00:01 Jupiter 1.24470415768821 1.24470308097018 1.24470523440645 3.96069799268498 3.78498698039463 2451884.177751174 1.06268993651529 76.723582728273 44.5707546202808 65.3735609541128 2542652.61350257 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2002-Nov-22 03:08 00:04 Jupiter 1.54965169308923 1.54965013378108 1.54965325239438 2.83304365051309 2.63305115687389 2452600.630263064 3.96425056550022 66.9248076923337 28.5227629767245 -74.8881642473397 369881.656768067 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2069-May-15 03:37 < 00:01 Jupiter 0.876857494730294 0.876850681465919 0.876864307995316 7.76254604394703 7.63709178040859 2476881.650863344 0.866986084596394 342.045372222941 55.1218816170723 10.5814702679781 441418.121108772 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2079-Jul-13 23:01 00:07 Jupiter 1.57265138287671 1.57264431923838 1.57265844650796 3.90454973578602 3.76408265071754 2480593.458772503 7.35307709072803 310.658668511715 55.0891086617587 -10.8530701726887 335856.303368125 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2081-Nov-18 11:34 00:05 Jupiter 1.34815561666439 1.34815082991235 1.34816040341558 3.94667430347397 3.78413439966786 2481451.981909643 5.32407074955674 232.649034888226 51.6356593360559 13.4087444356059 735599.980342726 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2095-Dec-21 10:49 00:12 Jupiter 1.21826122054607 1.21824590996679 1.21827653111386 3.7530928966265 3.56302721665129 2486597.950791477 11.9253964220517 738.00757982406 76.7993618194871 -9.15797998172676 310966.279118193 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2108-Apr-05 04:02 00:02 Jupiter 0.886755525571318 0.886743965265204 0.886767085879701 7.76176641930659 7.63771119493935 2491085.667956606 2.19102145455951 580.920662623582 65.2895651509331 10.677301702281 337958.179926364 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2175-Nov-14 00:01 00:15 Jupiter 0.23122776827104 0.231195829495387 0.231260048462304 5.86021918820933 5.19767875754988 2515779.501027039 14.619904390966 15035.0987514516 52.0633241401753 -82.2438179006278 725051.961620485 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38
2189-Jun-15 08:10 2_01:49 Jupiter 1.61877590189596 1.61822511075852 1.61932783840913 4.46321680551202 4.34439946286536 2520741.840283244 2988.57933864642 74121.636900417 47.2752253634927 68.3419449326416 4637119.58554216 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:38:09 2020-Nov-13 03:38

Alternate Designations
 1994 EQ3 = 1937 JF = 1937 JQ = 1984 FW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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