1. THEMIS GBO/ASI
Minor intensification
GBAY 01:48:42
KUUJ 01:48:51
CHBG 01:49:39
SNKQ 01:50:54
GILL 01:51:18
TPAS 01:51:21
Major intensification
(substorm)
GBAY 01:55:36
KUUJ 01:55:21
CHBG 01:56:33
SNKQ 01:52:27
GILL 01:54:21
TPAS 01:54:30

2. THEMIS SC, GBO and GOES observations 08-03-01/0100 – 0210 UTP1
KUUJ P2 P3 P4
G12
G10
GBAY
01:48:50 UT
0148: :21

3. P1 and P2: X=-22.7, RE

4. P1 P2

5. Timing of HE particles (P1 and P2 SST) First tailward burst
0148:42 UT
0148:42 UT
134 keV

7. P3 and P4: X=-9.5, -8.0 RE

8. Magnetic field variations at P3, P4, GOES 10, GOES 12
P3 and P4 FGM measurements:
Total field (Bt) at P3 and P4 continuously increases until ~0955 UT
Variations of the components, (baseline subtracted):
δBy and δBz started at 0148:20 – 0148:40 UT, indicating outward FAC underneath the SC, while Bx and Bt were increasing (the total current built up) until ~0154:30UT (current reduction/disruption).
CR/CD P4  P3: Tailward at a velocity of 150 km/s
GOES 10:
Positive δBn (eastward!) at UT G10 was under the FAC
GOES10, 12:
Dipolarization started at ~0155 UT

9. /0140 – 0205 UT
First activation
0148:20: HE electron flux increase at P2
0148:20: ~150 keV ion flux increase at P2
0148:30: minor δBy at P3 & P4
0148:42: Auroral onset at GBAY
0148:45: PI2 onset at GBAY
0148:50: δBy and δBz at P2/THC
0148:50: Tailward flow at P2/THC
0149:30: δBy and δBz at P1/THB
0149:30: Tailward flow at P1/THB
0149:30: major δBy δBz at P3 & P4
Second activation (substorm)
0154:21: Auroral onset at KUUJ
0154:30: Tailward flow at P1
0154:30: δBy, δBz at P2
0155:00: Tailward flow at P2
0155:00: Drop of Bt at P4
0155:00: Dipolarization at P4
0155:00: δVy, δVz at P4
0155:50: Drop of Bt at P3
0155:50: Dipolarization at P3
0155:50: δVy znd δVz at P3
Signatures in space and in the ionosphere are seen within 20 s!
Current reduction /CD at X~-8 RE and plasma acceleration at X~-17 RE acted almost simultaneously (independently?)

11. 3 variants of mapping: TIPSOD (T96?), T96 SW, Event Oriented (EO)
THEMIS ASI P1
T96 SW
TIPSOD P2 EO P3 P4
G12
G10
GBAY
3 variants of mapping: TIPSOD (T96?), T96 SW, Event Oriented (EO)