Here is the recorded live report.
time zone: GMT+8
weather condition of ZUUU
Wind from the SW (220 degrees) at 4 MPH (4 KT)
Visibility greater than 7 mile(s)
Sky conditions mostly clear
Temperature 42 F (6 C)
Dew Point 23 F (-5 C)
Relative Humidity 45%
Pressure (altimeter) 30.30 in. Hg (1026 hPa)
0936: one JL-8 double seated trainer, two J-10S double seated fighter appears. One of the J-10S loaded with some kind of pod
0938: the weather is great, refueling truck and electric power vehicle is next to J-20
0939: someone is on the reviewing stand preparing something. The engine of the J-20 is the silver color version
0940: drag parachute loaded
1024: ground crew work started
1036: pilot shows up
1045: J-20 engine started
1052: taxing to runway
1053: high speed rolling test
1101: pilot left
1103: loading drag parachute
1107: J-10S (the one with the pod) cockpit opens
1114: security guard shows up, we are on the tree again
1116: both the J-10 and J-20 started their ground crew work. Fire truck shows up
1121: J-10S pilot onboard (the one with the pod)
1122: the VIP seat is still empty
1126: J-10S engine started
1128: some police car shows up
1130: J-10S #220 taxing to the runway
1131: J-10S takes off
1135: two ambulance shows up
1145: J-10S landed
1208: B-4079 Boeing 737 landed
1221: cameraman on position
1222: B-4020 Boeing 737 landed (these two 737 belongs to the government)
1229: J-20 engine testing
1233: J-10S takeoff again
1243: J-20 engine started and testing with the cockpit opened
1247: J-20 taxing to the runway
Jan 11th 12:50:16: J-20 TAKE OFF!!!!! with J-10S as chase plane
1252: it seems it took off without activated the after burne, nobody saw the flame from the nuzzle
125X: circuling above the airfield now
1300: fly above the airfield, obviously longer and wider than the J-10S
1308: J-20 landed
1310: J-20 parking, J-10S landed
1320: A perfect first flight! Bravo to all the scientists, engineers, workers!
Unconfirmed information: first flight test pilot Gang·Li (李刚
With no VIP appear in this "important" flight, to be hornest, I begin to doubt that this is the first flight. It could be the first public flight.