CME 19990408

Tutorials: UVCS CME Observations pdf / html
UVCS CME Catalog Pages html

Table 1 - General Information

CME ID
 Time (UT)
 PA (deg)
 Speed (km/sec)
 Acceleration (m/sec2)
 Mass (g)
 Type II RB
X Flare
19990408.145405.p256s
 14:54
 247
 455
 -13.2
2.7e+14
No
 Yes


Table 2 - UVCS Observation Sequence

FITS filename
 PA (deg)
 T i (UT)
 Tf (UT)
 Height (Rsun)
 Slit W. (arcsec)
 Exp. Time (sec)
d99.04.08.13:48:27.ovi.dat
 225
 13:49:20
 13:56:00
 1.50
 28
 200


13:56:48
 14:03:28
 1.60
 28
 200


14:04:12
 14:13:12
 1.70
 28
 180


14:15:17
 14:24:17
 1.90
 28
 180


14:26:18
 14:38:18
 2.10
 28
 180


14:40:31
 14:55:31
 2.50
 28
 180


14:58:33
 15:20:33
 3.00
 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)
d99.04.08.13:48:27.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
1999/04/08 14:40 0 0 2.58, 3.12 HILya1216

Images

Intensity Images

LyA Intensity, background corona not subtracted, transients embedded in PA=236-246


Interpretation

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

Comments

Faint event. Only small change in LyA, possibly O VI 1032 also, can be seen. The CME should pass UVCS slit based on LASCO CME movie.

Last Update Tue May 19 12:23:45 2009