CME 19990402

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Table 1 - General Information

CME ID
 Time (UT)
 PA (deg)
 Speed (km/sec)
 Acceleration (m/sec2)
 Mass (g)
 Type II RB
X Flare
19990402.083005.p079s
 08:30
 90
 1068
 -21.3
2.4e+15*
 No
 Yes


Table 2 - UVCS Observation Sequence

FITS filename
 PA (deg)
 T i (UT)
 Tf (UT)
 Height (Rsun)
 Slit W. (arcsec)
 Exp. Time (sec)
d99.04.02.08:10:43.ovi.dat
 45
 08:11:14
 08:17:54
 1.50
 28
 200


08:18:38
 08:25:18
 1.60
 28
 200

45
 08:26:08
 08:35:08
 1.70
 28
 180


08:37:13
 08:46:13
 1.90
 28
 180

45
 08:48:12
 09:00:12
 2.10
 28
 180


09:02:23
 09:17:23
 2.50
 28
 180

45
 09:20:28
 09:42:28
 3.00
 28
 200
d99.04.02.09:49:21.ovi.dat
 90
 09:49:53
 09:56:33
 1.50
 28
 200


09:57:17
 10:03:57
 1.60
 28
 200

90
 10:04:40
 10:13:40
 1.70
 28
 180


10:15:38
 10:24:38
 1.80
 28
 180

90
 10:26:38
 10:38:38
 2.00
 28
 180


10:40:51
 10:55:51
 2.30
 28
 180

90
 10:58:53
 11:24:13
 2.80
 28
 200


11:27:02
 12:01:42
 3.50
 28
 200

UVCS Slit Position

MOVIE of UVCS Slit on LASCO Images

Table 3 - UVCS Observation Wavelength Range

FITS filename
 Wave Min (A)
 Wave Max (A)
d99.04.02.08:10:43.ovi.dat
 1023.20
 1043.70

980.400
 993.400

1208.70
 1220.60

975.800
 979.200

1221.80
 1224.90
d99.04.02.09:49:21.ovi.dat
 1023.20
 1043.70

980.400
 993.400

1208.70
 1220.60

975.800
 979.200

1221.80
 1224.90


Table 4 - UV Properties

First Obs. Max blue-shift (km/sec) Max red-shift (km/sec) Detected at (Rsun) Lines
1999/04/02 08:22 89 136 1.43,1.55,1.67,1.78,1.9,2.0,2.1,2.35,2.58,3.1,3.6 HILya1216
HILyb1026
CIII977
OVI1032
OVI1038
OV1218

Images

Intensity Images

C III 977 log Intenisty, slit center at PA=45 deg

C III 977 log Intenisty, slit center at PA=90 deg

C III 977 Line Width, slit center at PA=45 deg

C III 977 Line Width, slit center at PA=90 deg

LyA Centroid, slit center at PA=45 deg

LyA Centroid, slit center at PA=90 deg

LyA log Intensity, slit center at PA=45 deg

LyA log Intensity, slit center at PA=90 deg

LyA Width, slit center at PA=45 deg

LyA Width, slit center at PA=90 deg

O VI 1032 log Intensity, slit center at PA=45 deg

O VI 1032 log Intensity, slit center at PA=90 deg

OVI 1032 intensity

OVI 1032 intensity


Plots and more


Interpretation

Front No
Void ?
Shock No
Current Sheet No
Prominence Yes
Flare O VI No
Leg ?
Helix ?

Comments

The Doppler shifts of 2 blobs at 1.67 and 1.90 Ro of the PA=45 observations show changing shift from one to the next exposure, indicating possible helical motion. However, since this only occurs in two exposures in the available data, existence of helix or not can not be definitely certain.

Last Update Wed May 9 16:05:13 2012