# (17246) 2000 GL74

Discovery Orbit of (17246) 2000 GL74 LINEAR April 5, 2000 1973 VM 2.8976 AU (433.4748 Gm) 2.7806 AU (415.9718 Gm) 2.8391 AU (424.7233 Gm) 0.0206 4.78 years 8.7347° 2.4532° 34.587° 299.71° 1 75.19 deg / yr 4.78787 yr (1748.77 d) 2.7962 mi (4.5 km)[2] 10 h[1] 0.21 (geometric)[2] 156 K (-117°C) S[2] 13.7[1][2]

(17246) 2000 GL74 is a Main belt asteroid. It was discovered by the LINEAR program on April 5, 2000. It is known to possess a moon: S/2004 (17246) 1.

## Characteristics

(17246) 2000 GL74 is more reflective than most asteroids, with an albedo of 0.21. Even so, it is not very bright, having a size of only 4.5 kilometres.[2] Its rotation period of 10 hours is not unusual, however.

### Close Approaches

3 Juno, the asteroid that (17246) GL74 will approach on January 9, 2129

On January 9, 2129, (17426) 2000 GL74 will come within 3,639,998 kilometres of the asteroid 3 Juno. It will pass it with a relative velocity of 6.597 km/s.[1]

## Moon

(17246) 2000 GL74 has one moon, S/2004 (17246) 1. It is 44% the size of (17246) 2000 GL74, at 2 km.[2] While its rotation period and orbital eccentricity is not yet known, it is known that the moon completes one orbit every 90 days at a distance of about 250 km. From the surface of (17246) 2000 GL74, S/2004 (17246) 1 would have an apparent diameter of about 0.668°, slightly larger than the Moon appears from Earth.[a]

## Notes

1. ^ Calculated by solving $\scriptstyle{\mathrm{tan}\left(\frac{\theta}{2}\right) = \frac{\mathrm{radius~of~moon}}{\mathrm{distance~from~surface~of~asteroid~to~center~of~moon}}}$.

## References

1. ^ a b c d http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=17246;orb=1;cov=0;log=0;cad=1#orb
2. Johnston, W. R. (1 September 2005). "(17246) 2000 GL74". Johnston's Archive. Retrieved 2013-09-24.