9998 ISO
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Orbit of 9998 ISO (blue), planets (red) [outermost shown is Jupiter], and the Sun (black). | |||||||||||||
| Discovery[1] and designation | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | C. J. van Houten, I. van Houten-Groeneveld, and T. Gehrels | ||||||||||||
| Discovery date | March 25, 1971 | ||||||||||||
| Designations | |||||||||||||
Named after | Infrared Space Observatory[2] | ||||||||||||
| 1293 T-1, 1991 PW15 | |||||||||||||
| Orbital characteristics | |||||||||||||
| Epoch October 27, 2007 | |||||||||||||
| Aphelion | 2.3642513 AU | ||||||||||||
| Perihelion | 1.9577873 AU | ||||||||||||
| 2.1610193 AU | |||||||||||||
| Eccentricity | 0.0940445 | ||||||||||||
| 1160.3430335 d | |||||||||||||
| 350.83002° | |||||||||||||
| Inclination | 3.91429° | ||||||||||||
| 345.10618° | |||||||||||||
| 33.12896° | |||||||||||||
| Physical characteristics | |||||||||||||
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| 15.2 | |||||||||||||
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9998 ISO is a main belt asteroid. It completes one solar orbit every 3.18 years.
Discovered on March 25, 1971 by C. J. van Houten & I. van Houten-Groeneveld on archival images taken by T. Gehrels, the body was given a provisional designation of 1293 T-1.[1][3] It was later renamed 9998 ISO to honour the Infrared Space Observatory.[2]
References
- ↑ 1.0 1.1 "Discovery Circumstances: Numbered Minor Planets (5001)-(10000)". Minor Planet Center. Retrieved November 6, 2013.
- ↑ 2.0 2.1 "Citation for (9998)". MPC 41571. Retrieved November 6, 2013.
- ↑ "9998 ISO (1293 T-1)". JPL Small-Body Database Browser.
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