Glider dive log

PortSusan 23Jul07 * SG001 * Dive index * Mission links * Dive 131 * Log results * Raw log file

Parameter values: Sort by alphabetical glider order

ID 1 HD_B 0.010078 PITCH_AD_RATE 180 ALTIM_TOP_PING_RANGE 10

MISSION 1 HD_C 9.8541004e-06 PITCH_MAXERRORS 1 ALTIM_BOTTOM_TURN_MARGIN 0

DIVE 131 HEADING -1 PITCH_ADJ_GAIN 0.029999999 ALTIM_TOP_TURN_MARGIN 0

D_SURF 2 ESCAPE_HEADING 180 PITCH_ADJ_DBAND 0.5 ALTIM_TOP_MIN_OBSTACLE 3.5

D_FLARE 3 ESCAPE_HEADING_DELTA 10 ROLL_MIN 166 ALTIM_PING_DEPTH 125

D_TGT 150 FIX_MISSING_TIMEOUT 3 ROLL_MAX 3791 ALTIM_PING_DELTA 25

D_ABORT 250 TGT_DEFAULT_LAT 47.599998 C_ROLL_DIVE 1978 ALTIM_FREQUENCY 15

D_NO_BLEED 200 TGT_DEFAULT_LON -122.3 C_ROLL_CLIMB 1978 ALTIM_PULSE 5

D_FINISH 0 TGT_AUTO_DEFAULT 0 HEAD_ERRBAND 8 ALTIM_SENSITIVITY 1

D_PITCH 1.5 SM_CC 375 ROLL_CNV 0.028270001 INT_PRESSURE_SLOPE 0.0097660003

D_SAFE 100 N_FILEKB 4 ROLL_TIMEOUT 15 INT_PRESSURE_YINT 10

D_CALL 2 FILEMGR 2 R_PORT_OVSHOOT 17 DEEPGLIDER 0

SURFACE_URGENCY 5 CALL_NDIVES 1 R_STBD_OVSHOOT 17 DEEPGLIDERMB 0

SURFACE_URGENCY_TRY 20 COMM_SEQ 0 ROLL_AD_RATE 500 MOTHERBOARD 4

SURFACE_URGENCY_FORCE 20 N_NOCOMM 1 ROLL_MAXERRORS 1 DEVICE1 2

T_DIVE 50 N_NOSURFACE 0 ROLL_ADJ_GAIN 1 DEVICE2 -1

T_MISSION 60 UPLOAD_DIVES_MAX 5 ROLL_ADJ_DBAND 0.029999999 DEVICE3 -1

T_ABORT 1440 CALL_TRIES 5 VBD_MIN 421 DEVICE4 -1

T_TURN 225 CALL_WAIT 60 VBD_MAX 3792 DEVICE5 -1

T_TURN_SAMPINT 5 CAPUPLOAD 0 C_VBD 2257 DEVICE6 -1

T_NO_W 120 CAPMAXSIZE 200000 VBD_DBAND 2 SMARTS 0

USE_BATHY -4 HEAPDBG 1 VBD_CNV -0.24529999 SMARTDEVICE1 -1

USE_ICE 0 T_GPS 15 VBD_TIMEOUT 720 SMARTDEVICE2 -1

ICE_FREEZE_MARGIN -2 N_GPS 20 PITCH_VBD_SHIFT 0.00167 COMPASS_DEVICE 1

D_OFFGRID 100 T_GPS_ALMANAC 0 VBD_PUMP_AD_RATE_SURFACE 6 PHONE_DEVICE 32

T_WATCHDOG 10 T_GPS_CHARGE -452973.22 VBD_PUMP_AD_RATE_APOGEE 4 GPS_DEVICE 32

RELAUNCH 1 T_RSLEEP 2 VBD_BLEED_AD_RATE 10 RAFOS_DEVICE 16

APOGEE_PITCH -5 RAFOS_PEAK_OFFSET 0.2 UNCOM_BLEED 20 XPDR_DEVICE 24

MAX_BUOY 125 RAFOS_CORR_THRESH 60 VBD_MAXERRORS 20 SIM_W 0

COURSE_BIAS 0 RAFOS_HIT_WINDOW 5400 CF8_MAXERRORS 20 SIM_PITCH 0

GLIDE_SLOPE 30 PITCH_MIN 679 AH0_24V 91.800003 SEABIRD_T_G 0.0043805656

SPEED_FACTOR 0.94999993 PITCH_MAX 3252 AH0_10V 61.200001 SEABIRD_T_H 0.00064742006

RHO 1.02765 C_PITCH 2263 PRESSURE_YINT -0.22280908 SEABIRD_T_I 2.5554549e-05

MASS 51747 PITCH_DBAND 0.1 PRESSURE_SLOPE 9.9999997e-05 SEABIRD_T_J 2.6681391e-06

NAV_MODE 2 PITCH_CNV 0.0046000001 AD7714Ch0Gain 1 SEABIRD_C_G -10.331019

FERRY_MAX 45 P_OVSHOOT 0.045000002 TCM_PITCH_OFFSET 0 SEABIRD_C_H 1.1763502

KALMAN_USE 1 PITCH_GAIN 20 TCM_ROLL_OFFSET 0 SEABIRD_C_I -0.0012340198

HD_A 0.0038360001 PITCH_TIMEOUT 15 ALTIM_BOTTOM_PING_RANGE 25 SEABIRD_C_J 0.00017379176

AD7714Ch0Gain 1 D_FINISH 0 PITCH_AD_RATE 180 SMARTDEVICE1 -1

AH0_10V 61.200001 D_FLARE 3 PITCH_CNV 0.0046000001 SMARTDEVICE2 -1

AH0_24V 91.800003 D_NO_BLEED 200 PITCH_DBAND 0.1 SMARTS 0

ALTIM_BOTTOM_PING_RANGE 25 D_OFFGRID 100 PITCH_GAIN 20 SM_CC 375

ALTIM_BOTTOM_TURN_MARGIN 0 D_PITCH 1.5 PITCH_MAX 3252 SPEED_FACTOR 0.94999993

ALTIM_FREQUENCY 15 D_SAFE 100 PITCH_MAXERRORS 1 SURFACE_URGENCY 5

ALTIM_PING_DELTA 25 D_SURF 2 PITCH_MIN 679 SURFACE_URGENCY_FORCE 20

ALTIM_PING_DEPTH 125 D_TGT 150 PITCH_TIMEOUT 15 SURFACE_URGENCY_TRY 20

ALTIM_PULSE 5 ESCAPE_HEADING 180 PITCH_VBD_SHIFT 0.00167 TCM_PITCH_OFFSET 0

ALTIM_SENSITIVITY 1 ESCAPE_HEADING_DELTA 10 PRESSURE_SLOPE 9.9999997e-05 TCM_ROLL_OFFSET 0

ALTIM_TOP_MIN_OBSTACLE 3.5 FERRY_MAX 45 PRESSURE_YINT -0.22280908 TGT_AUTO_DEFAULT 0

ALTIM_TOP_PING_RANGE 10 FILEMGR 2 P_OVSHOOT 0.045000002 TGT_DEFAULT_LAT 47.599998

ALTIM_TOP_TURN_MARGIN 0 FIX_MISSING_TIMEOUT 3 RAFOS_CORR_THRESH 60 TGT_DEFAULT_LON -122.3

APOGEE_PITCH -5 GLIDE_SLOPE 30 RAFOS_DEVICE 16 T_ABORT 1440

CALL_NDIVES 1 GPS_DEVICE 32 RAFOS_HIT_WINDOW 5400 T_DIVE 50

CALL_TRIES 5 HD_A 0.0038360001 RAFOS_PEAK_OFFSET 0.2 T_GPS 15

CALL_WAIT 60 HD_B 0.010078 RELAUNCH 1 T_GPS_ALMANAC 0

CAPMAXSIZE 200000 HD_C 9.8541004e-06 RHO 1.02765 T_GPS_CHARGE -452973.22

CAPUPLOAD 0 HEADING -1 ROLL_ADJ_DBAND 0.029999999 T_MISSION 60

CF8_MAXERRORS 20 HEAD_ERRBAND 8 ROLL_ADJ_GAIN 1 T_NO_W 120

COMM_SEQ 0 HEAPDBG 1 ROLL_AD_RATE 500 T_RSLEEP 2

COMPASS_DEVICE 1 ICE_FREEZE_MARGIN -2 ROLL_CNV 0.028270001 T_TURN 225

COURSE_BIAS 0 ID 1 ROLL_MAX 3791 T_TURN_SAMPINT 5

C_PITCH 2263 INT_PRESSURE_SLOPE 0.0097660003 ROLL_MAXERRORS 1 T_WATCHDOG 10

C_ROLL_CLIMB 1978 INT_PRESSURE_YINT 10 ROLL_MIN 166 UNCOM_BLEED 20

C_ROLL_DIVE 1978 KALMAN_USE 1 ROLL_TIMEOUT 15 UPLOAD_DIVES_MAX 5

C_VBD 2257 MASS 51747 R_PORT_OVSHOOT 17 USE_BATHY -4

DEEPGLIDER 0 MAX_BUOY 125 R_STBD_OVSHOOT 17 USE_ICE 0

DEEPGLIDERMB 0 MISSION 1 SEABIRD_C_G -10.331019 VBD_BLEED_AD_RATE 10

DEVICE1 2 MOTHERBOARD 4 SEABIRD_C_H 1.1763502 VBD_CNV -0.24529999

DEVICE2 -1 NAV_MODE 2 SEABIRD_C_I -0.0012340198 VBD_DBAND 2

DEVICE3 -1 N_FILEKB 4 SEABIRD_C_J 0.00017379176 VBD_MAX 3792

DEVICE4 -1 N_GPS 20 SEABIRD_T_G 0.0043805656 VBD_MAXERRORS 20

DEVICE5 -1 N_NOCOMM 1 SEABIRD_T_H 0.00064742006 VBD_MIN 421

DEVICE6 -1 N_NOSURFACE 0 SEABIRD_T_I 2.5554549e-05 VBD_PUMP_AD_RATE_APOGEE 4

DIVE 131 PHONE_DEVICE 32 SEABIRD_T_J 2.6681391e-06 VBD_PUMP_AD_RATE_SURFACE 6

D_ABORT 250 PITCH_ADJ_DBAND 0.5 SIM_PITCH 0 VBD_TIMEOUT 720

D_CALL 2 PITCH_ADJ_GAIN 0.029999999 SIM_W 0 XPDR_DEVICE 24

Pre-dive calculations and measurements:

GPS1 124441,4807.441,-12223.565,25,1.1,25,18.0 TGT_NAME default

_CALLS 1 TGT_LATLONG 47.600,-122.300

_XMS_NAKs 0 TGT_RADIUS 1852.000

_XMS_TOUTs 0 KALMAN_CONTROL 0.215,-0.021

_SM_DEPTHo -0.00 KALMAN_X -34765.4,-506.7,19.1,35425.5,-2.0

_SM_ANGLEo -50.0 KALMAN_Y 15902.3,520.1,483.8,-18329.4,-208.2

GPS2 125053,4807.414,-12223.551,9,1.1,9,18.0 MHEAD_RNG_PITCHd_Wd 92.3,14438496,-20.0,-10.000

SPEED_LIMITS 0.156,0.216 D_GRID 100

Post-dive calculations and measurements:

FINISH -0.0,0.998486 ALTIM_TOP_PING 9.8,9.9

SM_CCo 2138,155.10,0.000,1,0,727,375.06 ALTIM_BOTTOM_PING 75.1,25.6

SM_GC -0.00,0.00,0.00,155.10,0.000,0.000,0.000,636,1757,727,-7.55,-5.74,375.06 _24V_AH 23.7,88.345

RAFOS_CLK 0 _10V_AH 9.7,14.095

RAFOS_FIX 0.000000,0.000000,010170,000000,0,0,0.00 DATA_FILE_SIZE 9589,311

IRIDIUM_FIX 0.00,0.00,010170,000000 CFSIZE 255582208,239464448

TT8_MAMPS 0.024544 ERRORS 0,0,0,0,0,0,0,0,0,0,0,31,122,1,0

HUMID 2329 SOUNDSPEED 1465.0

INTERNAL_PRESSURE 26.0651 CURRENT 0.020,217.1,1

TCM_TEMP 15.00 GPS 280707,133128,4807.313,-12223.312,12,1.1,12,18.0

XPDR_PINGS -1

Energy measurements:

device secs mA J sensor secs mA J

Pitch_motor 20 119 57.53 SBE_CT 246 24 140.18

Roll_motor 18 60 25.70 nil 0 0 0.00

VBD_pump_during_apogee 202 1300 6229.78 nil 0 0 0.00

VBD_pump_during_surface 155 600 2205.52 nil 0 0 0.00

VBD_valve 0 0 0.00 nil 0 0 0.00

Iridium_during_init 0 103 0.00 nil 0 0 0.00

Iridium_during_connect 0 0 0.00 nil 0 0 0.00

Iridium_during_xfer 109 223 577.58

Transponder_ping 0 420 4.98

GPS 10 50 5.02

TT8 846 19 163.64

LPSleep 543 2 12.18

TT8_Active 462 19 89.28

TT8_Sampling 283 39 109.79

TT8_CF8 545 45 242.95

TT8_Kalman 33 81 26.49

Analog_circuits 720 12 83.92

GPS_charging 0 0 0.00

Compass 249 26 62.90

RAFOS 0 1 0.00

Guidance and control:

st_secs pitch_ctl vbd_ctl depth ob_vertv data_pts end_secs pitch_secs roll_secs vbd_secs vbd_i gcphase pitch_i roll_i pitch_ad roll_ad vbd_ad

33 end surface: CONTROL_FINISHED_OK

state 33 begin dive

39 -1.21 -121.6 0.0 0.0 0 120 0.00 0.00 -66.88 0.000 6 0.000 0.000 622 2138 2757

126 -1.21 -121.6 2.5 -6.1 10 143 7.07 2.70 0.00 0.000 4 0.000 0.000 2083 382 2756

418 -1.15 -121.6 35.2 -11.1 57 427 0.38 3.00 0.00 0.000 6 0.000 0.000 1983 2169 2759

787 -1.15 -121.6 75.6 -11.2 118 795 0.30 2.50 0.00 0.000 4 0.000 0.000 2005 3561 2758

1025 end dive: TARGET_DEPTH_EXCEEDED

state 1025 begin apogee

1042 -0.25 0.0 100.1 9.7 158 1149 1.02 0.00 99.62 0.000 6 0.000 0.000 2266 1789 2261

1155 end apogee: CONTROL_FINISHED_OK

state 1155 begin climb

1161 1.21 121.6 103.4 0.0 164 1272 1.42 2.80 97.78 0.001 4 0.000 0.000 2554 404 1760

1546 1.21 121.6 59.8 12.0 217 1555 0.38 2.90 0.00 0.000 6 0.000 0.000 2482 2154 1770

1914 1.21 127.4 19.3 9.7 278 1922 0.38 0.00 4.80 0.001 6 0.000 0.000 2571 2158 1738

2080 end climb: SURFACE_DEPTH_REACHED

state 2080 begin surface coast

2109 end surface coast: CONTROL_FINISHED_OK

state 2109 begin surface

ID	1	HD_B	0.010078	PITCH_AD_RATE	180	ALTIM_TOP_PING_RANGE	10
MISSION	1	HD_C	9.8541004e-06	PITCH_MAXERRORS	1	ALTIM_BOTTOM_TURN_MARGIN	0
DIVE	131	HEADING	-1	PITCH_ADJ_GAIN	0.029999999	ALTIM_TOP_TURN_MARGIN	0
D_SURF	2	ESCAPE_HEADING	180	PITCH_ADJ_DBAND	0.5	ALTIM_TOP_MIN_OBSTACLE	3.5
D_FLARE	3	ESCAPE_HEADING_DELTA	10	ROLL_MIN	166	ALTIM_PING_DEPTH	125
D_TGT	150	FIX_MISSING_TIMEOUT	3	ROLL_MAX	3791	ALTIM_PING_DELTA	25
D_ABORT	250	TGT_DEFAULT_LAT	47.599998	C_ROLL_DIVE	1978	ALTIM_FREQUENCY	15
D_NO_BLEED	200	TGT_DEFAULT_LON	-122.3	C_ROLL_CLIMB	1978	ALTIM_PULSE	5
D_FINISH	0	TGT_AUTO_DEFAULT	0	HEAD_ERRBAND	8	ALTIM_SENSITIVITY	1
D_PITCH	1.5	SM_CC	375	ROLL_CNV	0.028270001	INT_PRESSURE_SLOPE	0.0097660003
D_SAFE	100	N_FILEKB	4	ROLL_TIMEOUT	15	INT_PRESSURE_YINT	10
D_CALL	2	FILEMGR	2	R_PORT_OVSHOOT	17	DEEPGLIDER	0
SURFACE_URGENCY	5	CALL_NDIVES	1	R_STBD_OVSHOOT	17	DEEPGLIDERMB	0
SURFACE_URGENCY_TRY	20	COMM_SEQ	0	ROLL_AD_RATE	500	MOTHERBOARD	4
SURFACE_URGENCY_FORCE	20	N_NOCOMM	1	ROLL_MAXERRORS	1	DEVICE1	2
T_DIVE	50	N_NOSURFACE	0	ROLL_ADJ_GAIN	1	DEVICE2	-1
T_MISSION	60	UPLOAD_DIVES_MAX	5	ROLL_ADJ_DBAND	0.029999999	DEVICE3	-1
T_ABORT	1440	CALL_TRIES	5	VBD_MIN	421	DEVICE4	-1
T_TURN	225	CALL_WAIT	60	VBD_MAX	3792	DEVICE5	-1
T_TURN_SAMPINT	5	CAPUPLOAD	0	C_VBD	2257	DEVICE6	-1
T_NO_W	120	CAPMAXSIZE	200000	VBD_DBAND	2	SMARTS	0
USE_BATHY	-4	HEAPDBG	1	VBD_CNV	-0.24529999	SMARTDEVICE1	-1
USE_ICE	0	T_GPS	15	VBD_TIMEOUT	720	SMARTDEVICE2	-1
ICE_FREEZE_MARGIN	-2	N_GPS	20	PITCH_VBD_SHIFT	0.00167	COMPASS_DEVICE	1
D_OFFGRID	100	T_GPS_ALMANAC	0	VBD_PUMP_AD_RATE_SURFACE	6	PHONE_DEVICE	32
T_WATCHDOG	10	T_GPS_CHARGE	-452973.22	VBD_PUMP_AD_RATE_APOGEE	4	GPS_DEVICE	32
RELAUNCH	1	T_RSLEEP	2	VBD_BLEED_AD_RATE	10	RAFOS_DEVICE	16
APOGEE_PITCH	-5	RAFOS_PEAK_OFFSET	0.2	UNCOM_BLEED	20	XPDR_DEVICE	24
MAX_BUOY	125	RAFOS_CORR_THRESH	60	VBD_MAXERRORS	20	SIM_W	0
COURSE_BIAS	0	RAFOS_HIT_WINDOW	5400	CF8_MAXERRORS	20	SIM_PITCH	0
GLIDE_SLOPE	30	PITCH_MIN	679	AH0_24V	91.800003	SEABIRD_T_G	0.0043805656
SPEED_FACTOR	0.94999993	PITCH_MAX	3252	AH0_10V	61.200001	SEABIRD_T_H	0.00064742006
RHO	1.02765	C_PITCH	2263	PRESSURE_YINT	-0.22280908	SEABIRD_T_I	2.5554549e-05
MASS	51747	PITCH_DBAND	0.1	PRESSURE_SLOPE	9.9999997e-05	SEABIRD_T_J	2.6681391e-06
NAV_MODE	2	PITCH_CNV	0.0046000001	AD7714Ch0Gain	1	SEABIRD_C_G	-10.331019
FERRY_MAX	45	P_OVSHOOT	0.045000002	TCM_PITCH_OFFSET	0	SEABIRD_C_H	1.1763502
KALMAN_USE	1	PITCH_GAIN	20	TCM_ROLL_OFFSET	0	SEABIRD_C_I	-0.0012340198
HD_A	0.0038360001	PITCH_TIMEOUT	15	ALTIM_BOTTOM_PING_RANGE	25	SEABIRD_C_J	0.00017379176

GPS1	124441,4807.441,-12223.565,25,1.1,25,18.0	TGT_NAME	default
_CALLS	1	TGT_LATLONG	47.600,-122.300
_XMS_NAKs	0	TGT_RADIUS	1852.000
_XMS_TOUTs	0	KALMAN_CONTROL	0.215,-0.021
_SM_DEPTHo	-0.00	KALMAN_X	-34765.4,-506.7,19.1,35425.5,-2.0
_SM_ANGLEo	-50.0	KALMAN_Y	15902.3,520.1,483.8,-18329.4,-208.2
GPS2	125053,4807.414,-12223.551,9,1.1,9,18.0	MHEAD_RNG_PITCHd_Wd	92.3,14438496,-20.0,-10.000
SPEED_LIMITS	0.156,0.216	D_GRID	100

FINISH	-0.0,0.998486	ALTIM_TOP_PING	9.8,9.9
SM_CCo	2138,155.10,0.000,1,0,727,375.06	ALTIM_BOTTOM_PING	75.1,25.6
SM_GC	-0.00,0.00,0.00,155.10,0.000,0.000,0.000,636,1757,727,-7.55,-5.74,375.06	_24V_AH	23.7,88.345
RAFOS_CLK	0	_10V_AH	9.7,14.095
RAFOS_FIX	0.000000,0.000000,010170,000000,0,0,0.00	DATA_FILE_SIZE	9589,311
IRIDIUM_FIX	0.00,0.00,010170,000000	CFSIZE	255582208,239464448
TT8_MAMPS	0.024544	ERRORS	0,0,0,0,0,0,0,0,0,0,0,31,122,1,0
HUMID	2329	SOUNDSPEED	1465.0
INTERNAL_PRESSURE	26.0651	CURRENT	0.020,217.1,1
TCM_TEMP	15.00	GPS	280707,133128,4807.313,-12223.312,12,1.1,12,18.0
XPDR_PINGS	-1

device	secs	mA	J	sensor	secs	mA	J
Pitch_motor	20	119	57.53	SBE_CT	246	24	140.18
Roll_motor	18	60	25.70	nil	0	0	0.00
VBD_pump_during_apogee	202	1300	6229.78	nil	0	0	0.00
VBD_pump_during_surface	155	600	2205.52	nil	0	0	0.00
VBD_valve	0	0	0.00	nil	0	0	0.00
Iridium_during_init	0	103	0.00	nil	0	0	0.00
Iridium_during_connect	0	0	0.00	nil	0	0	0.00
Iridium_during_xfer	109	223	577.58
Transponder_ping	0	420	4.98
GPS	10	50	5.02
TT8	846	19	163.64
LPSleep	543	2	12.18
TT8_Active	462	19	89.28
TT8_Sampling	283	39	109.79
TT8_CF8	545	45	242.95
TT8_Kalman	33	81	26.49
Analog_circuits	720	12	83.92
GPS_charging	0	0	0.00
Compass	249	26	62.90
RAFOS	0	1	0.00

st_secs	pitch_ctl	vbd_ctl	depth	ob_vertv	data_pts	end_secs	pitch_secs	roll_secs	vbd_secs	vbd_i	gcphase	pitch_i	roll_i	pitch_ad	roll_ad	vbd_ad
33	end surface: CONTROL_FINISHED_OK
state	33	begin dive
39	-1.21	-121.6	0.0	0.0	0	120	0.00	0.00	-66.88	0.000	6	0.000	0.000	622	2138	2757
126	-1.21	-121.6	2.5	-6.1	10	143	7.07	2.70	0.00	0.000	4	0.000	0.000	2083	382	2756
418	-1.15	-121.6	35.2	-11.1	57	427	0.38	3.00	0.00	0.000	6	0.000	0.000	1983	2169	2759
787	-1.15	-121.6	75.6	-11.2	118	795	0.30	2.50	0.00	0.000	4	0.000	0.000	2005	3561	2758
1025	end dive: TARGET_DEPTH_EXCEEDED
state	1025	begin apogee
1042	-0.25	0.0	100.1	9.7	158	1149	1.02	0.00	99.62	0.000	6	0.000	0.000	2266	1789	2261
1155	end apogee: CONTROL_FINISHED_OK
state	1155	begin climb
1161	1.21	121.6	103.4	0.0	164	1272	1.42	2.80	97.78	0.001	4	0.000	0.000	2554	404	1760
1546	1.21	121.6	59.8	12.0	217	1555	0.38	2.90	0.00	0.000	6	0.000	0.000	2482	2154	1770
1914	1.21	127.4	19.3	9.7	278	1922	0.38	0.00	4.80	0.001	6	0.000	0.000	2571	2158	1738
2080	end climb: SURFACE_DEPTH_REACHED
state	2080	begin surface coast
2109	end surface coast: CONTROL_FINISHED_OK
state	2109	begin surface