NOAA SEC Solar Coronal Disturbance Report 27 Nov 2000
:Product: Solar Coronal Disturbance Report
:Issued: 2000 Nov 27 0210 UT
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar Coronal Disturbance Report
SCDR Number 332 Issued at 0200Z on 27 Nov 2000
Report compiled from data received at SWO on 26 Nov 2000
Part I. Possible Coronal Mass Ejection Events
UT Time Optical Xray Radio
Begin Max End Location Type Size Dur II IV
26/ 0619 0846 1030 Lde C3.6 104
25/A2034 0000 26/B1137 S26W44 Dsf
26/A1618 0000 B1636 N22W40 Dsf
26/ 1655 0000 1701 N18W38 Rsp X4.0 8 2
Part II. Inferred Coronal Holes. Locations Valid at 26/2400Z
IIA. Polar Holes CMP Latitude Pol Area Obsn
North pole No data
South pole No data
IIB. Isolated Holes and Polar Extensions
Nmbr Hole Boundaries Type Pol Area Obsn
East South West North Car
10 N15W51 N12W56 N13W57 N20W55 Iso Pos 10830A (He)
11 N20W25 S09W34 N03W42 N22W29 Iso Neg 10830A (He)
12 S52E58 S62E32 S55E20 S30E41 Iso Pos 10830A (He)
Part III. Interplanetary Observations
Solar Wind Information: Solar wind data was received from the ACE
spacecraft throughout the reporting period. Velocity began hovering
below 400 km/s, until beginning a steady rise to approximately 490
km/s beginning at 0500Z. A second velocity increase began just
after 1100Z, reaching a maximum of approximately 680 km/s at 1230Z.
Velocity then fluctuated in the 520-620 range for the remainder of
the reporting period. Density began in the 3-4 p/cc range, rose to
a high of approximately 50 p/cc just after 0700Z, dropped down to
approximately 5 p/cc after 1000Z, rose again to a high of 70 p/cc
after 2100Z, and fell once more to end the reporting period at
10 p/cc. Bz has remained mostly positive in the range -10 to
+20 nT.
Part IV. Comments
None
