It will appear at dawn in July as 15.5 mag. It hardly faded out since the perihelion passage in 2000 June. But no observation has been reported since Jan. 5. Because it is far away, it keeps brighter than 16 mag until August. Only southern people can observe it.
Northern people can never see it again.
Borrelly In the Northern Hemisphere, it appears at dawn at 10 mag in late July, then reaches to 8 mag in autumn. It is observable in good condition as 15 mag from February to April. It is observable as 15.5 mag until autumn. It will appear at dawn in July, but will be fainter than 17 mag. It will appear at dawn in June at 14 mag, then will fade gradually.