Take Out the Trash

Deck 36, Main Engineering

A cloud of space junk is in your constellation's orbital plane. Use the space lasers on your satellites to vaporize it! Destroy at least 51 pieces of space junk to get the flag.

The lasers have a range of 100 km and must be provided range and attitude to lock onto the space junk. Don't allow any space junk to approach closer than 10 km.

Command format:

[Time_UTC] [Sat_ID] FIRE [Qx] [Qy] [Qz] [Qw] [Range_km]

Command example:

2021177.014500 SAT1 FIRE -0.7993071278793108 0.2569145028089314 0.0 0.5432338847750264 47.85760531563315

This command fires the laser from Sat1 on June 26, 2021 (day 177 of the year) at 01:45:00 UTC and expects the target to be approximately 48 km away. The direction would be a [0,0,1] vector in the J2000 frame rotated by the provided quaternion [-0.7993071278793108 0.2569145028089314 0.0 0.5432338847750264] in the form [Qx Qy Qz Qw].

One successful laser command is provided for you (note: there are many possible combinations of time, attitude, range, and spacecraft to destroy the same piece of space junk):

2021177.002200 SAT1 FIRE -0.6254112512084177 -0.10281341941423379 0.0 0.773492189779751 84.9530354564239

Solution Statistics

observations 160
solves 24
points 142
average solve seconds 24489 seconds, or about 7 hours
stddev solve time 14488 seconds, or about 4 hours

Solutions Over Time

by time solve count solve percent
2021-06-27 07:00:00 UTC 1 4%
2021-06-27 08:00:00 UTC 1 4%
2021-06-27 09:00:00 UTC 5 20%
2021-06-27 10:00:00 UTC 6 25%
2021-06-27 11:00:00 UTC 9 37%
2021-06-27 12:00:00 UTC 9 37%
2021-06-27 13:00:00 UTC 11 45%
2021-06-27 14:00:00 UTC 12 50%
2021-06-27 15:00:00 UTC 13 54%
2021-06-27 16:00:00 UTC 18 75%
2021-06-27 17:00:00 UTC 18 75%
2021-06-27 18:00:00 UTC 21 87%
2021-06-27 19:00:00 UTC 21 87%
2021-06-27 20:00:00 UTC 24 100%

solving teams:

solved by 24 teams

team solved at it took
PPP 2021-06-27 06:38:38 UTC 2825 seconds, or 0.78 hours
Tea MSG 2021-06-27 08:03:10 UTC 7878 seconds, or 2.19 hours
BLĂ…HAJ 2021-06-27 08:15:18 UTC 7648 seconds, or 2.12 hours
1064CBread 2021-06-27 08:35:25 UTC 9602 seconds, or 2.67 hours
WeightedCompanionCube 2021-06-27 08:45:03 UTC 6891 seconds, or 1.91 hours
OneSmallHackForMan 2021-06-27 09:45:51 UTC 10383 seconds, or 2.88 hours
Samurai 2021-06-27 10:01:55 UTC 14506 seconds, or 4.03 hours
Poland Can Into Space 2021-06-27 10:07:05 UTC 10049 seconds, or 2.79 hours
SpaceBitsRUs 2021-06-27 10:38:51 UTC 16836 seconds, or 4.68 hours
FluxRepeatRocket 2021-06-27 12:09:51 UTC 22081 seconds, or 6.13 hours
cbx 2021-06-27 12:32:59 UTC 12608 seconds, or 3.5 hours
WeltALLES! 2021-06-27 13:31:22 UTC 18142 seconds, or 5.04 hours
perfect blue 2021-06-27 14:29:16 UTC 30741 seconds, or 8.54 hours
DiceGang 2021-06-27 15:02:02 UTC 32958 seconds, or 9.15 hours
vMag 2021-06-27 15:02:28 UTC 32660 seconds, or 9.07 hours
Solar Wine 2021-06-27 15:12:23 UTC 33477 seconds, or 9.3 hours
ENOFLAG 2021-06-27 15:14:49 UTC 25698 seconds, or 7.14 hours
NSL 2021-06-27 15:41:23 UTC 35141 seconds, or 9.76 hours
segfault_in_our_stars 2021-06-27 17:04:47 UTC 40354 seconds, or 11.21 hours
ADDVulcan 2021-06-27 17:19:36 UTC 41051 seconds, or 11.4 hours
Visions_of_Grandeur 2021-06-27 17:49:00 UTC 37881 seconds, or 10.52 hours
mhackeroni 2021-06-27 19:09:59 UTC 41403 seconds, or 11.5 hours
SingleEventUpset 2021-06-27 19:22:02 UTC 48550 seconds, or 13.49 hours
Vim Appreciation Society 2021-06-27 19:30:17 UTC 48386 seconds, or 13.44 hours