passtimes endpoint occasionally return n-1 passes instead of n passes

[cat-haines]

This seems to reliably happen when the ISS is currently passing overhead of the location your are checking, but I have seen a handful of other times (can't reliably reproduce other than the 'currently above' situation)

[combs]

Love this project--thank you for providing this service.

I'm seeing this bug too. Example:

{
message: "success",
request: {
altitude: 60,
datetime: 1430072043,
latitude: 38.939626,
longitude: -76.990228,
passes: 3
},
response: [
{
duration: 580,
risetime: 1430083221
},
{
duration: 624,
risetime: 1430089001
}
]
}

[r-jordan]

Hi all, thank you for your time in this project.

I've seen that this bug happens when the ISS is above in the sky but the API continues returning n-1 passes after the ISS has passed. But it doesn't happen at all the occasions that the ISS is above us.