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CMEs in 1998 Apr (Back)

No.
First C2 Appearance
UT
Location (Apparent Loc)
deg
DSC
Rs
SPA
deg
CPA
deg
MPA
deg
Width
deg
Speed
km/s
Acc
m/s^2
Def
EIT Ref-Time
UT
CL
Comment
11998/04/0113:10:10Poor Data---------- 106 112 31 476 -13.0--------
21998/04/0115:12:39Poor Data---------- 197 192 47 330 -5.8--------
31998/04/0206:43:13Poor Data---------- 263 251 65 277 4.3--------
41998/04/0218:30:45Poor Data---------- 149 143 48 155 0.8--------
51998/04/0304:23:39Poor Data---------- 261 265 72 482 -9.4--------
61998/04/0320:12:14Poor Data---------- 258 258 70 521 -17.1--------
71998/04/0402:46:54Poor Data---------- 18 22 58 237 1.1--------
81998/04/0405:47:58Poor Data---------- 57 55 43 95 -1.5--------
91998/04/0405:47:58Poor Data---------- 261 263 60 197 -0.5--------
101998/04/0415:41:47Poor Data---------- 91 88 43 524 1.1--------
111998/04/0418:13:18Poor Data---------- 255 253 66 402 6.3--------
121998/04/0423:29:01Poor Data---------- 111 107 18 420 -2.0--------
131998/04/0501:05:44Poor Data---------- 247 259 39 192 -1.1--------
141998/04/0504:40:34Poor Data---------- 106 104 7 334 -4.4--------
151998/04/0515:51:34Poor Data---------- 238 259 24 473 -10.4--------
161998/04/0602:00:55Poor Data---------- 252 245 64 404 5.8--------
171998/04/0605:04:50Poor Data---------- 248 256 62 878 -16.9--------
181998/04/0608:49:52Poor Data---------- 115 133 67 162 1.6--------
191998/04/0618:33:28Poor Data---------- 111 112 14------------------
201998/04/0623:27:05No Signature---------- 94 104 24 385 -38.0-------1
211998/04/0710:14:19No Signature---------- 90 100 20 395 -20.4-------1
221998/04/0712:18:35No Signature---------- 90 91 13 224 -0.5-------2
231998/04/0719:59:47Poor Data---------- 96 95 7 360 -2.7--------
241998/04/0803:27:39No Signature---------- 78 74 44 441 15.2-------3
251998/04/0803:59:20No Signature---------- 290 284 27 845 -0.9-------2
261998/04/0806:37:46No Signature---------- 12 20 56 170 2.0-------1
271998/04/0806:37:46No Signature---------- 249 254 41 197 34.0-------1
281998/04/0818:41:11No Signature---------- 286 283 56 435 8.8-------2
291998/04/0820:05:30S18E70 (S16E67) 0.93107.8 79 84 17 232 -2.0E1998/04/08 19:30:57 3
301998/04/0906:44:47Above Limb----- 38.6 30 43 39 773 9.6R1998/04/09 06:14:51 2
311998/04/0909:06:50Above Limb----- 205.8 241 236 64 291 1.8E1998/04/09 08:29:36 2
321998/04/0910:35:17S13W88 (S13W81) 0.99256.6 282 288 35 221 28.6E1998/04/09 10:05:12 2
331998/04/1001:55:05No Signature---------- 97 95 67 539 -11.7-------1
341998/04/1006:55:05No Signature---------- 321 328 58 124 1.6-------1
351998/04/1018:00:33No Signature---------- 291 292 40 112 1.8-------2
361998/04/1018:51:10Poor Data---------- 218 222 17 181 -4.3--------
371998/04/1022:22:16Poor Data---------- 81 84 41 155 7.3--------
381998/04/1104:26:05Poor Data---------- 135 121 67 193 -14.9--------
391998/04/1108:55:05Poor Data---------- 127 131 72 198 -7.5--------
401998/04/1122:27:05Poor Data---------- 73 77 14 417 -17.9--------
411998/04/1212:55:05Poor Data---------- 108 70 117 565 -10.3--------
421998/04/1218:55:05Poor Data---------- 277 265 59 370 -26.0--------
431998/04/1223:27:05Poor Data---------- 262 267 47 565 -17.2--------
441998/04/1304:26:05Poor Data---------- 113 66 123 468 2.0--------
451998/04/1316:27:06Poor Data---------- 292 295 29 172 -6.4--------
461998/04/1318:27:05Poor Data---------- 212 188 71 231 -14.1--------
471998/04/1405:26:22N23E76 (N24E75) 0.97 64.7 92 58 91 918 27.7E1998/04/14 05:37:15 1
481998/04/1507:55:05N31W16 (N36W17) 0.64337.8 335 337 49 691 -5.9R1998/04/15 07:51:10 1
491998/04/1513:55:05N32W20 (N37W21) 0.67333.9 339 328 48 589 -6.9R1998/04/15 12:34:09 1
501998/04/1517:55:05N31W21 (N36W22) 0.67332.1 341 335 51 445 -1.4R1998/04/15 17:20:10 1
511998/04/1601:55:05N31W24 (N36W25) 0.69329.9 336 325 32 487 1.1R1998/04/16 01:14:03 1
521998/04/1612:55:05No Signature---------- 68 64 40 645 13.9-------1
531998/04/1616:55:05No Signature---------- 297 292 49 470 2.0-------1
541998/04/1618:27:05No Signature---------- 217 219 87 583 15.5-------1
551998/04/1620:38:37S35W67 (S32W62) 0.92234.0 236 217 129 586 -1.8R1998/04/16 20:03:09 3
561998/04/1623:02:55Poor Data---------- 291 293 65 488 -0.1--------
571998/04/1707:47:25No Signature---------- 219 214 41 301 15.8-------1
581998/04/1821:36:12N49W61 (N51W64) 0.96324.2 300 304 66 512 1.3E1998/04/18 20:55:28 3
591998/04/1915:40:57N34W79 (N34W77) 0.98305.2 304 304 19 559 -10.1R1998/04/19 14:50:20 1
601998/04/2003:16:27No Signature---------- 237 231 43 316 6.9-------1
611998/04/2007:05:01No Signature---------- 87 102 106 379 -2.6-------1
621998/04/2010:07:11S42W63 (S39W58) 0.91225.8 284 278 1651863 43.5E1998/04/20 10:01:23 2
631998/04/2017:27:05No Signature---------- 286 308 14 246 2.1-------1
641998/04/2017:59:33No Signature---------- 83 84 19 152 1.3-------1
651998/04/2101:40:36No Signature---------- 92 100 88 418 2.8-------1
661998/04/2102:13:53Above Limb----- 302.8 308 308 17 583 -44.7R1998/04/21 01:25:36 1
671998/04/2119:03:35Above Limb----- 299.6 292 292 62 527 6.1R1998/04/21 18:14:36 1
681998/04/2120:46:04Poor Data---------- 95 93 65 417 -3.3--------
691998/04/2205:44:39No Signature---------- 230 230 36 395 6.7-------1
701998/04/2304:26:05No Signature---------- 64 65 15 461 46.1-------1
711998/04/2305:27:07Above Limb----- 109.8Halo 116 3601618 18.5E1998/04/23 05:35:24 1
721998/04/2306:55:20No Signature---------- 308 306 20 646 -7.6-------1
731998/04/2408:55:19Above Limb----- 112.5 100 112 841184 -17.8E1998/04/24 08:51:10 1
741998/04/2505:35:07No Signature---------- 54 55 22 151 -1.3-------1
751998/04/2515:11:26S21E76 (S19E72) 0.96110.6 95 85 73 349 -5.4E1998/04/25 14:06:38 1
761998/04/2518:38:10S13E73 (S11E71) 0.95102.4 70 68 17 324 1.9E1998/04/25 18:05:15 1
771998/04/2700:00:40No Signature---------- 90 88 22 357 -8.6-------1
781998/04/2700:27:42No Signature---------- 271 276 29 280 4.3-------1
791998/04/2703:01:57Above Limb----- 115.8 110 103 40 760 -2.5R1998/04/27 02:24:41 1
801998/04/2708:56:06S16E51 (S13E49) 0.78107.3Halo 79 3601385 74.4E1998/04/27 09:06:10 1
811998/04/2823:43:05Poor Data---------- 63 63 26 348 6.5--------
821998/04/2905:31:36S16E30 (S12E29) 0.53114.1 148 118 85 327 -21.0P1998/04/29 05:23:32 2
831998/04/2906:27:05No Signature---------- 118 110 18 271 -3.4-------2
841998/04/2916:58:54S15E19 (S11E19) 0.38122.5Halo 336 3601374 -44.8E1998/04/29 16:35:29 1
851998/04/3012:08:33No Signature---------- 50 54 8 431 -48.7-------1
861998/04/3019:47:28Poor Data---------- 97 93 17 378 -10.6--------
871998/04/3020:25:08Poor Data---------- 271 272 45 363 -20.7--------

== Description ==
:: First C2 Appearance - Taken from the SOHO/LASCO CME Catalog
:: Location (Apparent Loc) - Latitude and longitude of CME source region in the heliographic coordinate. The latitude and longitude in parentheses indicates the source region location without solar b angle correction.
:: DSC - Projected distance on the plane-of-sky from the solar center to CME source region.
:: SPA - Position angle of CME apparent location.
:: CPA - Central position angle.
:: MPA - Measurement position angle.
:: Width - Angular width.
:: Speed - Linear speed.
:: Acc - Acceleration.
:: Def - Deflection. E: Equator-ward, P: Pole-ward, R: Radial event.
:: EIT Ref-Time - A time when the EIT image shows CME initiation clearly.
:: CL - The confidence level of the identification.
:: The parameters in the columns 2, 6, 7, 8 and 9 are adopted from CDAW CME Catalog.

== The LIST OF CME SOURCE LOCATIONS is generated ==
:: by the members of STEP Team at USTC: Yuming Wang, Caixia Chen, Bin Gui, Chenglong Shen and Pinzhong Ye
:: based on the SOHO/LASCO CME CATALOG generated and maintained at the CDAW Data Center by NASA and
  The Catholic University of America in cooperation with the Naval Research Laboratory
:: and the SOHO/EIT MVI movies generated by the Naval Research Laboratory.
:: Comments or questions about this list could be addressed to Dr. Yuming Wang (ymwang@ustc.edu.cn),
:: or written here.


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