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Discovery
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| Discovered by | Charles W. Juels |
| Discovery date | December 7, 1999 |
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Designations
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| Named after | Hugh Downs |
| Alternate name(s) | 1999 XD37 |
| Minor planet category |
Main belt |
| Epoch November 26, 2005 (JD 2453700.5) | |
| Aphelion | 473.216 Gm (3.163 AU) |
| Perihelion | 325.645 Gm (2.177 AU) |
| Semi-major axis | 399.430 Gm (2.670 AU) |
| Eccentricity | 0.185 |
| Orbital period | 1593.572 d (4.36 a) |
| Average orbital speed | 18.07 km/s |
| Mean anomaly | 138.415° |
| Inclination | 13.003° |
| Longitude of ascending node | 93.496° |
| Argument of perihelion | 322.502° |
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Physical characteristics
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| Dimensions | ? km |
| Mass | ?×10? kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Albedo | 0.1? |
| Temperature | ~170 K |
| Spectral type | ? |
| Absolute magnitude (H) | 14.2 |
The asteroid 71000 Hughdowns, provisional designation 1999 XD37, is named after American television host Hugh Downs, popular for his co-hosting career on the ABC news show 20/20. It was discovered on December 7, 1999 by Charles W. Juels.
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