| Discovery | |
|---|---|
| Discovered by | K. Endate,K. Watanabe |
| Discovery site | Kitami |
| Discovery date | 14 March 1994 |
| Designations | |
| (6144) Kondojiro | |
Named after | Jiro Kondo |
| 1994 EQ3,1937 JF,1937 JQ,1984 FW1 | |
| Jupiter-crosser asteroid | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 22150 days (60.64 yr) |
| Aphelion | 6.47345 AU (968.414 Gm) (Q) |
| Perihelion | 3.03222 AU (453.614 Gm) (q) |
| 4.75283 AU (711.013 Gm) (a) | |
| Eccentricity | 0.36202 (e) |
| 10.36yr (3784.66d) | |
| 34.71927° (M) | |
| 0° 5m 42.435s / day (n) | |
| Inclination | 5.88716° (i) |
| 117.14167° (Ω) | |
| 96.127254° (ω) | |
| Earth MOID | 2.03358 AU (304.219 Gm) |
| Jupiter MOID | 0.204605 AU (30.6085 Gm) |
| TJupiter | 2.867 |
| Physical characteristics | |
| Dimensions | 32.9±5.1 km[2] |
| 4.0±2h[1][3] | |
| 0.044±0.009[2] | |
| D[4] | |
| 11.6 | |
6144 Kondojiro (1994 EQ3) is anasteroid discovered on 14 March 1994 byKin Endate andKazuro Watanabe at theKitami Observatory in easternHokkaido,Japan. It is named afterJiro Kondo, a JapaneseEgyptologist and professor ofarchaeology atWaseda University.
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Theorbit of 6144 Kondojiro is unusual for a number of reasons, including:
It is difficult to classify an object with such a peculiar orbit using aconventional definition. Despite this, theMinor Planet Center (MPC) lists it as a main-belt asteroid,[5] even though both the orbital and physical properties of 6144 Kondojiro suggest that it may be anextinct comet rather than atrue asteroid.[4] TheJPL Small-Body Database lists only 33 such objects that have anobservation arc greater than 30 days.[6]
