How to Keep a Spacecraft in a Droo Orbit at 8800km above 39°E

I actually looked into this to place 3 sattelite in a stationary orbit 120 degrees apart with one over the Droo space center.

[Droo Synchronous Sattelite](https://www.simplerockets.com/c/3O7d15/Droo-Synchronous-Sattelite)

The synchronous orbit altitude I used was 8804 km for a 14 hour orbit. This is the planet day length as reported by Vizzi. I'm assuming this is the sidereal day length (relative to fixed stars). The solar day (noon to noon) will be different from this.

Droo space center is at 130W.

Starting from a 85km orbit using a starting TWR of 1.25 (the burn starts point may differ for a different TWR or a diferrent start orbit)
- Start burn at 122E to place sat over DSC (252 E or 108 W or target)
- Start burn at 118W to place sat 120 deg east of this
- Start burn at 2E to place sat 120 deg west of this

@Toinkove I tried a new method, which is to rely entirely on time calculations to ensure that when my spacecraft transitions from a low orbit to a high orbit, it just reaches the apogee of 8800km and is precisely at the position of 39°E.

However, I found a problem. In this game, JUNO's time to reach the apogee is very rough. If I were to accurately account for the burn time (which is also very rough), it seems that it would only deviate the result.

But I think this rough method should also be able to get to the approximate position you mentioned, and then make fine adjustments. Because the mission time only allows for 5 days, I'm really upset.

I assume you’ve found on the flight instrument panel the box that shows where your craft is relative to Droos surface in Lat/Long?
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The problem is that in the time it takes your craft to reach that point, Droo rotates below you so when you conduct your geosynchronous orbit burn you are no longer “hovering” over the spot you meant to be!
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I’ve only found two ways to get this correct. First is just trial and error! Once in a low orbit (200 km let’s say) “quick save” then place your burn node and see where you end up at apogee. Then if you fail just “quick load” and make adjustments till you get it correct! I know it might seem like cheating but this is how I place a geostationary sat up usualy!
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Second method is more time consuming but more realistic if you prefer. Place the payload into an orbit close to 8800 km and see where it is relative to droos surface. If it is W of the 39E location then go into a lower orbit then 8800 km and your craft will slowly but surly drift to the east until over the location you want. Then burn your engines to raise the orbit to the desired 8800 km! If you are too far E of the 39E location the do the exact opposite! Go into a orbit higher then 8803 km causing droo to rotate faster then your craft until your desired location “catches up” to you craft (then just like the other case, lower your orbit to the desired 8800 km)