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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3603643919063529 2.9662e-08  
a 4.765711368064158 4.1188e-08 au
q 3.048318688910525 1.5442e-07 au
i 5.883456618997967 3.6025e-06 deg
node 117.0859384923679 4.6828e-05 deg
peri 96.44602053295124 4.7272e-05 deg
M 205.2732338714427 6.8896e-06 deg
tp 2460833.751173305792
(2025-Jun-07.25117331)
8.9398e-05 TDB
period 3800.056299900692
10.40
4.9264e-05
1.349e-07
d
yr
n .09473543852742602 1.2281e-09 deg/d
Q 6.483104047217791 5.6031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1478  
   data-arc span      24148 days (66.11 yr)  
   first obs. used      1954-12-22  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:23:15  

Additional Information
 Earth MOID = 2.04904 au 
 Jupiter MOID = .202256 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 11.65   n/a E2021B10  
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. 2020-October); 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 0.807969272942448 0.807917707433154 0.808020839344026 4.20040184470185 3.9429310860824 2417204.560303013 3.05127695940142 2921.35419155773 97.4297894564927 -27.3800447101214 639711.942120424 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
1939-Mar-18 08:25 01:05 Jupiter 1.39005596403565 1.38970091731453 1.39041101284958 9.26054235755554 9.19450685989729 2429340.850575435 64.9642610135046 17908.9376116204 61.9028234283777 -10.7400957254398 442370.526550245 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
1953-Nov-30 04:28 < 00:01 Jupiter 0.333613680707945 0.33361066039675 0.333616702228267 5.70054974843937 5.23625849872656 2434711.685828122 0.476908638143269 1143.967611807 58.1476605599577 -81.4762305729141 935792.573898027 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
1986-Jun-29 11:10 < 00:01 Jupiter 0.597149780059141 0.5971481875755 0.597151372543156 7.10117016516924 6.89853122790911 2446610.965280521 0.400208798834086 86.2324853349602 54.629576383323 32.359659186963 1059220.30369543 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2000-Dec-05 16:16 00:01 Jupiter 1.24470418753563 1.24470313816696 1.24470523690437 3.96069793250474 3.78498692272513 2451884.177797552 1.03104407962706 70.565736409539 43.5864136131381 63.2456743423578 2582555.36334439 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2002-Nov-22 03:07 00:04 Jupiter 1.54965164426649 1.54965011068523 1.54965317784494 2.83304335799733 2.63305083674679 2452600.630206036 3.89767962034382 64.7260401219007 27.8119995336034 -75.2776513617167 378869.619832691 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2069-May-15 03:37 < 00:01 Jupiter 0.876855875157405 0.876849068607271 0.876862681708237 7.76254181773438 7.63708725185054 2476881.650783619 0.859369689795893 341.72395081787 54.7799991395 10.5953996622579 443431.078852494 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2079-Jul-13 23:02 00:07 Jupiter 1.57264966421641 1.57264260648346 1.57265672194231 3.90454308935304 3.76407560067151 2480593.460015905 7.34611378596056 310.442198942992 52.7935051591895 -10.8762204815346 343109.955178592 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2081-Nov-18 11:33 00:05 Jupiter 1.34815448818145 1.34814970552482 1.34815927083724 3.94667246678187 3.78413234602418 2481451.981093392 5.3161972963281 232.382557630484 48.8544120406987 13.3028661238607 754384.674152736 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2095-Dec-21 10:46 00:12 Jupiter 1.21826479159227 1.21824949940753 1.21828008376551 3.75309665880874 3.56303175259096 2486597.948942497 11.9125865960077 737.223182588269 71.1738868775164 -9.20627726071017 329483.629841448 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2108-Apr-05 04:02 00:02 Jupiter 0.886752889110013 0.886741336474284 0.88676444174801 7.76175991767289 7.63770421656172 2491085.668387935 2.18741251427666 580.507624353316 62.6644496078903 10.6575627880709 348019.19704707 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2175-Nov-13 23:58 00:15 Jupiter 0.231235132041117 0.231203140324209 0.231267464616456 5.86004133455959 5.19750068061356 2515779.498808106 14.600391765686 15023.3502272399 51.5517958805159 -82.2285653732478 732745.927785055 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23
2189-Jun-15 19:30 2_01:46 Jupiter 1.61864969921133 1.61809294753814 1.61920759365089 4.46319201263085 4.34436460188803 2520742.312675918 2986.15685465083 74157.1299631464 46.2299878520828 68.1135913669016 4687490.75185615 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 18:23:38 2021-Apr-12 18:23

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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