Tekto

Tekto
Tekto as seen from orbit.
Moon of Sarnus
Orbital Characteristics
Semi-major axis		97 355 304 m
Apoapsis		100 081 253 m
Periapsis		94 629 356 m
Orbital eccentricity		0.028
Orbital inclination		9.4 °
Argument of periapsis		0 °
Longitude of the ascending node		55 °
Mean anomaly		2.1 rad (at 0s UT)
Sidereal orbital period		666 155 s
		30 d 5 h 2 m 34.5 s
Synodic orbital period		667 872.8 s
Orbital velocity		893 - 944 m/s
Longest time eclipsed		11 878 s
Physical Characteristics
Equatorial radius		280 000 m
Equatorial circumference		1 759 292 m
Surface area		9.8520346×1011 m2
Mass		2.8834085×1021 kg
Standard gravitational parameter		1.9244099×1011 m3/s2
Density		31 357.648 kg/m3
Surface gravity		2.45 m/s2 (0.25 g)
Escape velocity		1 172.42 m/s
Sidereal rotation period		666 154.48 s
		30 d 5 h 2 m 34.5 s
Sidereal rotational velocity		2.6410 m/s
Synchronous orbit		12 652.90 km
Sphere of influence		8 637 005.2 m
Atmospheric Characteristics
Atmosphere present		✓ Yes
Atmospheric pressure		124.630 kPa
		1.23 atm
Atmospheric height		95 000 m
		1.2×10-6 atm
Temperaturemin		-206.17 °C 66.98 K
Temperaturemax		-179.45 °C 93.7 K
Oxygen present		× No
Scientific multiplier
Surface		6.5
Splashed		5.5
Lower atmosphere		5
Upper atmosphere		10
Near space		9
Outer space		8
Recovery		8

Tekto is the fifth and last moon of Sarnus. It is the Titan analog to the game and is a small, low-gravity moon with a thick atmosphere.

Its high, inclined orbit increases the difficulty of missions to the moon and the thick atmosphere makes returning harder, but does however greatly reduce the ∆V requirements for landing through enabling the use of aerobraking and parachutes.

In-Game Description

“

This moon has a very dense atmosphere for a body its size. Combined with the low gravity, this means that a Kerbal with wings attached to his arms could lift off from the surface of the moon under his or her own power. Those wings would have to be made of some sturdy materials though, as Tekto's atmosphere appears to be very violent. — Kerbal Astronomical Society

”

Atmosphere

Tekto has an atmosphere thick and dense enough to support bodies of liquids on its surface. The atmosphere has a sea level pressure of 124.63 kilopascals (1.23 atmospheres), and a depth of 95,000 meters.

Like all other atmospheres in the game, Tekto's atmosphere fades exponentially as altitude increases. The scale height varies with altitude. The pressure-altitude profile is globally constant and independent of temperature. The following table gives the atmospheric pressure at various altitudes above the datum level.

Altitude (m)	Pressure (Pa)	Pressure (atm)
0	124 630	1.230
2 500	93 089	0.919
5 000	68 620	0.677
7 500	50 080	0.494
10 000	36 310	0.358
15 000	18 961	0.187
20 000	9 971	0.098
25 000	5 321	0.053
30 000	2 869	0.028
35 000	1 566	0.015
40 000	872.8	0.009
45 000	497.4	0.005
50 000	297.6	0.003
55 000	184.5	0.002
60 000	121.0	0.001
65 000	81.86	0.001
70 000	57.10	0.001
75 000	40.48	0.000
80 000	29.04	0.000
85 000	21.13	0.000
90 000	12.19	0.000
95 000	0	0.000

Composition

The average molecular weight of Tekto's air is 28.9644 g/mol, and its adiabatic index is 0.014. which indicates a composition of mostly nitrogen. Given the green color and the density of the gases, it is possible to estimate the atmosphere is 97.8% nitrogen and 2.2% chlorine.

The liquids on the surface are likely some sort of hydrocarbon, which can indicate a "water cycle" made of chlorine or hydrocarbons. As Tekto is the Titan analog, the lakes are probably liquid ethane.

Surface

With some graphical mods installed, it is difficult to make observations of the surface from orbit. The density of the moon suggests the following: a solid rock core, 201 km thick; a subsurface ocean 560 km deep; and an icy crust 22 km thick.

Biomes

Owing to its varied terrain and oceans, Tekto has a large number of biomes (22 in all).

Biome list

Tekto biome map

Geomagnetic Anomaly Polar Rifts Mount Avaritia Twin Lakes Southern Islands Belial Island Rhat Island Malebolge Peninsula Witvoogd Peninsula Sarbian Islands Medikohl Lake Antenor Lake Vexxus Lake Tande Region Pozine Region Mammon Region Det Region Adnomimon Region Dis Region Sylandro Region Silisko Sea Inland Lagoons

Reference Frames

Time warp	Minimum Altitude
1×	Any
5×	95 000 m (above the atmosphere)
10×	95 000 m (above the atmosphere)
50×	95 000 m (above the atmosphere)
100×	95 000 m (above the atmosphere)
1 000×	95 000 m (above the atmosphere)
10 000×	168 000 m
100 000×	336 000 m