If you have any questions about what ISS is or how you can spot it, please look at our Facts and Figures section.
I'm getting alerts from a lot different accounts with numbers. Why is that?
We use a lot of accounts to send the alerts. Twisst sends about 11,000 tweets every day, and it's not possible to send them with just one account, because of Twitter limits.
If you want the ISS alerts, only follow @twisst. Don't follow the sender accounts, like twisst42 and twisst13. If you follow them you will see tweets for your friends in your timeline. Our alerts show up in your replies-list:
I don't want to tell everyone where I am by putting my location in my Twitter profile! Can't I just DM you my coordinates?
For now, we can only work with the location in your Twitter profile. You could put your country or province in your profile. There is no need to reveil your exact location; ISS flies so fast that even a large distance on land will only matter a few seconds, or minutes at most.
You might want to have a look at https://twisst.nl/location - thanks!
Can I use Twisst when I don't make my tweets public?
Ehm... I think so. But really, isn't Twitter about open conversation? What's with the secrecy? ;-)
I followed @twisst, then unfollowed and then followed again. But I'm not getting any alerts now. What's wrong?
Sometimes when somebody unfollows and then comes back, he or she is not entered into our system again. It is a bug we will soon try to solve. For now, if you are not getting any alerts while you expect them, just contact us @twisst and we'll look into it.
Will you make a Twisst for other objects too?
There's still a lot more improvements we want to add to this Twisst, but yes, in the future we hope to alert people to more cool objects in the sky. Adding Iridium flares is high on the list.
I'm not getting any SMS alerts from you on my mobile!
if you are using Twitter through text messages on your mobile, Twisst won't be of much help to you. We're sending the alerts through a lot of different sender accounts, which you would have to follow to get their tweets on your mobile.
However, we do have a cool workaround. Through Google Calendar, you can get our alerts as SMS text messages on your mobile every time ISS passes. For free!
Could you include the direction of ISS and it's elevation?
Yes. We soon will make this optional. The default alert will be geared towards to generally interested people, but for those space geeks out there it will be possible to switch to a more technical alert which has all the details.
But... my question is not answered here!?
Please don't hesitate to ask us anything. Just send us a tweet @twisst and we will probably reply quickly and maybe add your question to this page.
If you want to add anything to the answers on this page, you can do so below here. Thanks!