Lesson 5 of 5 · Bhutan’s ShakthiSAT participation
ShakthiSAT: distinguish educational participation from a lunar flight
8 minute lesson · 3 checks along the way
Your goal for this lessonUse Bhutan’s participation to examine mission milestones and communication delay.
In this lesson 3 sections · 3 checks
Using archive links & definitions
Words with a dotted underline open a short definition right here in the lesson.
Read & understand
Join a shared international development effort
In a release dated 7 July 2026, GovTech and Bhutan’s Ministry of Education and Skills Development announced participation in Mission ShakthiSAT. The initiative brings girls into international satellite education and development with a lunar ambition. Bhutan’s announcement identifies an engineering mentor and a selected student representative, and describes hands-on work in systems design, mission architecture and collaboration.
This is participation in an international program, not evidence that Bhutan already operates its own spacecraft at the Moon. The release gives a planned October 2026 mission target; the cited announcement and organizer overview do not establish a completed launch or lunar arrival. An education program can have real value before a flight, while its technical milestones must still be reported accurately.
Check 1 of 3
10 pointsUse the reading above. You can try again without losing points.
Read & understand
Distance changes how a team operates a spacecraft
An experiment in low Earth orbit and one near the Moon face different communication geometry, energy and navigation demands. Reusing a small-satellite format does not make those missions equivalent. A team must define the actual trajectory, the host or transfer arrangement if any, and which organization is responsible at each interface. A lunar destination in a title is not a complete mission architecture.
Consider an idealized Earth–Moon communication distance of 384,000 kilometers and a radio propagation speed of 300,000 kilometers per second. A signal takes about 1.28 seconds one way, or 2.56 seconds for a round trip, before processing or other delays. These rounded teaching values do not describe a ShakthiSAT trajectory. They show why a ground operator cannot expect instantaneous acknowledgement of every command.
Let the command make the round trip
Original teaching diagram. ROUNDED TEACHING VALUES. Distance: 384,000 km. Radio speed: 300,000 km/s. PROPAGATION ONLY. One way: 1.28 seconds. Round trip: 2.56 seconds. Processing and routing add delay; these are not a mission ephemeris.
Open full-size diagram in a new tab: Let the command make the round tripCheck 2 of 3
10 pointsUse the reading above. You can try again without losing points.
Read & understand
Demonstrate the part a student actually built
A useful educational contribution has a clear boundary and a way to evaluate it: a tested sensor board, a documented software routine, a verified data decoder or a repeatable experiment. Students can explain the requirement, the test conditions and what changed when a test failed. Those records provide stronger evidence of learning than the size of an international participant count alone.
For an invented command exercise, a spacecraft receives a request, executes an operation and sends a result. The ground station waits for the physical round-trip time plus processing time before deciding whether the acknowledgement is late. A timeout shorter than the propagation minimum would create false failure reports even if the spacecraft worked perfectly. The same discipline applies to the program history: selection, training, integration, launch and lunar arrival are distinct milestones, each requiring its own evidence.
Check 3 of 3
10 pointsUse the reading above. You can try again without losing points.
Put it together
Your lesson progress
Each check connects to a part of the story. Complete all 3 to earn your 25-point lesson bonus.
Explore further · Optional
Go to the source
Explore the evidence behind this lesson. These optional readings and videos open in a new tab.
- Read: GovTech: Bhutan’s ShakthiSAT participationThe release is dated 7 July 2026, while the English web listing is 8 July. It announces education and development participation with a planned lunar objective, not a completed lunar flight.
- Read: Mission ShakthiSAT: organizer’s program overviewThe organizer describes international satellite education for girls. The public overview is not evidence of completed launch or lunar arrival.
- Read: NASA: spacecraft navigationCompare the explanation and its assumptions with the worked example in this lesson.
- Read: NASA: telecommunicationsCompare the explanation and its assumptions with the worked example in this lesson.