| perihelion date T =1997 April 1.13800 TT |
| perihelion distance q = 0.9141405 a.u. |
| eccentricity e = 0.9951172 |
| inclination i = 89.42943°, |
| argument of perihelion = 130.58915°, |
| longitude of ascending node= 282.47069° (2000.0). |
°Ñ¦Ò¸ê®Æ: Alan M. MacRobert,Comet Hale-Bopp Flees Far South,Sky & Telescope
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