As the team approaches the satellite, Sheppard indicates that the ship is "holding station at 1000 meters". McKay rejoins that they are "almost a half a mile away". In fact, since half a mile is about 800 meters, they are more than half a mile away. This is not a mistake that a top scientist like McKay, who loves being precise, would be likely to make, even in casual conversation.
About 30 minutes, where Major Sheppard is hiding behind a rock watching the Wraith who is in the Puddle Jumper, he pulls out his binoculars but the image through the binoculars is no better. What he sees with the binoculars and what he sees without are exactly the same .
Weapons would not be stored in the jumper with a round in the chamber and the safety off. When the wraith tried to shoot Shepherd the Barretta should not have fired.
When Lt. Ford is in a Puddle Jumper heading toward the planet, and talking to Dr. Weir back on Atlantis, Dr. Weir says the Ford will be "on the other side of the Solar System". She should have said 'Planetary System' or even just 'System'. There is only one Solar System, and it has Sol as its sun, and Earth as its third planet. The Solar System is not even in the Pegasus Galaxy, and a very long way from where Ford is.
However, Weir is a diplomat, not an astronomer, and it is common to refer to other planetary systems as 'solar systems', in the same way that planets' satellites are called moons, even although, technically, there is only one 'Moon'.
When the Wraith leaves the jumper, he activates the shield with the wrist device. He is still wearing the wrist device when he is blown up, leaving them no way to deactivate it.
Lt Ford and the others probably have a wrist device on them that works for all Puddle Jumpers, so the one blown up isn't needed.
During the close-up shot of the Wraith firing one of the Berettas, the gun's action isn't cycling when fired, the slide remains perfectly still, making it obvious that a prop is being used.
When McKay checks the life-signs detector after they come across the first dead scientist, the Wraith and the surviving scientist (who is a captive of the Wraith) both show up as white dots on the detector. In the very first episode in which Sheppard first uses the life-signs detector, it is shown that Wraith show up as red dots, not the white dots which signify humans.
When the Wraith shoots Sheppard in the arm, Sheppard seeks cover behind a big rock. When he leans into the rock, the rock moves half an inch.