Power Point
We Get Signal
Break out Microsoft Office because its time to make some slides… just kidding!
There is a satellite out there transmitting a flag. You are on a moving platform and you don't know how you will be moving or where the transmitter is or how the transmitter is moving. Luckily you have a steerable antenna! To get the flag:
- Find the transmitter by steering the antenna.
- Keep the antenna pointed at the transmitter and try to maximize signal power.
- Decode the samples coming in from your receiver.
Your co-worker told you they think the satellites is "North-ish and sort of close to the horizon"
Send az, el commands to the antenna; an antenna command is formatted as a string for example if az=77.1 and el=73.2
send:
77.10,22.2\n
Please send one command at a time.
After you send a command the receiver will reply with a fixed number of IQ samples via TCP.
Solution Statistics
| observations | 144 |
|---|---|
| solves | 19 |
| points | 165 |
| average solve seconds | 33571 seconds, or about 9 hours |
| stddev solve time | 25383 seconds, or about 7 hours |
Solutions Over Time
| by time | solve count | solve percent |
|---|---|---|
| 2022-05-22 00:00:00 UTC | 1 | 5% |
| 2022-05-22 01:00:00 UTC | 2 | 10% |
| 2022-05-22 02:00:00 UTC | 4 | 21% |
| 2022-05-22 03:00:00 UTC | 7 | 36% |
| 2022-05-22 04:00:00 UTC | 9 | 47% |
| 2022-05-22 05:00:00 UTC | 9 | 47% |
| 2022-05-22 06:00:00 UTC | 11 | 57% |
| 2022-05-22 07:00:00 UTC | 11 | 57% |
| 2022-05-22 08:00:00 UTC | 11 | 57% |
| 2022-05-22 09:00:00 UTC | 12 | 63% |
| 2022-05-22 10:00:00 UTC | 12 | 63% |
| 2022-05-22 11:00:00 UTC | 12 | 63% |
| 2022-05-22 12:00:00 UTC | 12 | 63% |
| 2022-05-22 13:00:00 UTC | 12 | 63% |
| 2022-05-22 14:00:00 UTC | 12 | 63% |
| 2022-05-22 15:00:00 UTC | 14 | 73% |
| 2022-05-22 16:00:00 UTC | 14 | 73% |
| 2022-05-22 17:00:00 UTC | 16 | 84% |
| 2022-05-22 18:00:00 UTC | 17 | 89% |
| 2022-05-22 19:00:00 UTC | 18 | 94% |
| 2022-05-22 20:00:00 UTC | 19 | 100% |
solving teams:
solved by 19 teams
| team | solved at | it took |
|---|---|---|
| perfect blue | 2022-05-21 23:02:56 UTC | 3180 seconds, or 0.88 hours |
| SingleEventUpset | 2022-05-22 00:13:27 UTC | 7300 seconds, or 2.03 hours |
| mhackeroni | 2022-05-22 01:40:26 UTC | 12516 seconds, or 3.48 hours |
| PPP | 2022-05-22 01:47:12 UTC | 12411 seconds, or 3.45 hours |
| We're In Ur Sat, Stealin Ur Flag | 2022-05-22 02:19:39 UTC | 13942 seconds, or 3.87 hours |
| SpaceBitsRUs | 2022-05-22 02:22:04 UTC | 14968 seconds, or 4.16 hours |
| Peoples Satellite Libation Venture | 2022-05-22 02:48:59 UTC | 16246 seconds, or 4.51 hours |
| Poland Can Into Space | 2022-05-22 03:30:47 UTC | 18956 seconds, or 5.27 hours |
| Tea MSG | 2022-05-22 03:45:28 UTC | 17743 seconds, or 4.93 hours |
| DiceGang | 2022-05-22 05:04:52 UTC | 21648 seconds, or 6.01 hours |
| PFS | 2022-05-22 05:19:25 UTC | 25122 seconds, or 6.98 hours |
| AutoBAHN | 2022-05-22 08:27:05 UTC | 35246 seconds, or 9.79 hours |
| Chanterelle | 2022-05-22 14:33:44 UTC | 29462 seconds, or 8.18 hours |
| The Braintrust | 2022-05-22 14:45:49 UTC | 58551 seconds, or 16.26 hours |
| Solar Wine | 2022-05-22 16:36:12 UTC | 65578 seconds, or 18.22 hours |
| ShroitPeople | 2022-05-22 16:50:18 UTC | 66987 seconds, or 18.61 hours |
| ADDVulcan | 2022-05-22 17:46:25 UTC | 70569 seconds, or 19.6 hours |
| organizers | 2022-05-22 18:20:14 UTC | 71739 seconds, or 19.93 hours |
| WeltALLES! | 2022-05-22 19:19:19 UTC | 75676 seconds, or 21.02 hours |