The time of birth as given by you is 15:00 hours which seems to be approx time. Of course in such cases rectification of birth chart needs to be done to ascertain correct time of birth. Her ascendant is at 1 Degrees and 28 minutes. 1 degrees is 4 minutes, that means her horoscope chances from Sagittarius lagan to Scorpio in 6 minutes. As you stated that she loses her temper easily. Scorpio natives are ruled by Mars. Mars is the planet for aggression, force, quarrels. With Scorpio lagan she should be wearing Silver ring as it will control her temper and bring her peace of mind.