CME 19990630

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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
19990630.043005.p272s
 04:30
 282
 1049
 -27.7
7.8e+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)
d99.06.30.03:39:29.ovi.dat
 315
 03:47:28
 03:54:08
 1.60
 27
 200


03:54:52
 04:03:52
 1.70
 27
 180


04:05:58
 04:14:58
 1.90
 27
 180


04:16:57
 04:28:57
 2.10
 27
 180


04:31:11
 04:46:11
 2.50
 27
 180


04:49:13
 05:11:13
 3.00
 27
 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)
d99.06.30.03:39:29.ovi.dat
 1023.40
 1043.70

975.700
 992.400

1207.60
 1222.90


Table 4 - UV Properties

First Obs. Max blue-shift (km/sec) Max red-shift (km/sec) Detected at (Rsun) Lines
1999/06/30 04:12 605 607 1.88, 2.11 HILya1216
HILyb1026
OVI1032
OVI1038

Images

Intensity Images

O VI 1032 intensity, background corona not subtracted


Plots and more

LyA spectrum right before the CME passing

LyA profile (like a 'bubble') seen at 2.11 Rs

LyA profile (like a 'bubble') seen at CME onset

O VI 1032 spectrum window right before the CME passing

O VI profiles (like a 'bubble') seen at 2.11 Rs

O VI profiles ('bubble'-like) seen at CME onset


Interpretation

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

Comments

The change in line profiles is similar to that in several X-class flare events UVCS observed (e.g. Apr. 21, 2002). The 'bubble'-like feature moved down the slit (toward north) with time for a few exposures.

Last Update Fri Jun 20 19:37:23 2008