Take the northwest paths across the rivers to reach Orbita Station in the Burnt Forest, and you'll need code 1995 to access Kaymanov's office for the Lab X15 keycard. Find the side ladder to climb up top where you should toss some bolts to handle those electric anomalies near the satellite gear. Once you flip the switch under the array to recalibrate, head down to the underground section using your keycard. Those Burers in the halls are nasty telekinetic types, so use the corners for cover and watch their patterns before moving in. The Pod Control Room has a circular device for the cartridge, and while you're there grab Kaymanov's second diary entry plus that Orbita memo with code 4221 for the blast doors.

Good to know that stocking up on meds before tackling those mutants is pretty crucial, and you might want to save before interacting with the pod since your choices there affect how different groups treat you later. If you're exploring around, that Operator Exoskeleton blueprint near the toxic pools is worth grabbing, just be careful with your approach since those areas can be pretty dangerous.