CME 19990517

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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
19990517.175005.p307g
 17:50
 293
 550
 -15.5*
 2.1e+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)
d99.05.17.21:28:30.ovi.dat
 250
 21:30:01
 01:56:41
 2.45
 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)
d99.05.17.21:28:30.ovi.dat
 1023.40
 1044.00

1011.40
 1016.80

1238.20
 1243.20

1002.60
 1007.80

1246.50
 1251.20


Table 4 - UV Properties

First Obs. Max blue-shift (km/sec) Max red-shift (km/sec) Detected at (Rsun) Lines
1999/05/17 21:30 0 0 2.57 HILyb1026
OVI1032
OVI1038
SiXII521
FeXII1242
MgX625

Images

Intensity Images

Mg X 625 Intensity, background corona not subtracted

LyB Intensity, background corona not subtracted

Fe XII 1242 Intensity, background corona not subtracted

O VI 1032 Intensity, background corona not subtracted, showing void and streamer forming afterwards at~PA=270, also deflection of streamer at south.


Interpretation

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

Comments

Mg X and Fe XII images mainly show delection of streamer. The change in intensity at northern part of the slit at later time may be due to LyA background.

Last Update Thu May 29 10:00:48 2008