Viewing archive of Sunday, 24 October 1999
Geophysical report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Solar and Geophysical Activity Summary 1999 Oct 24 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 297 Issued at 0245Z on 24 OCT 1999 This report is compiled from data received at SWO on 23 OCTA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0048 0107 0158 C2.7 II
B. Proton Events
None
C. Geomagnetic Activity Summary
ACTIVITY INCREASED DURING 23/0300
- 0600Z WITH ACTIVE PERIODS AT SOME MID-LATITUDE STATIONS AND ACTIVE
TO MAJOR STORM PERIODS AT HIGH LATITUDES. ANOTHER PERIOD OF
INCREASED ACTIVITY OCCURRED DURING 23/1400 - 2000Z WITH ACTIVE
PERIODS AT MIDDLE LATITUDES AND ACTIVE TO MINOR STORM PERIODS AT
HIGH LATITUDES. OTHERWISE, FIELD ACTIVITY WAS AT QUIET TO UNSETTLED
LEVELS.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 165 SSN 114 AFR/AP 019/026 X-RAY BACKGROUND C1.1 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.5E+06 GT 10 MEV 1.2E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 5.10E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 4 4 2 4 4 3 3 PLANETARY 3 4 4 3 5 5 4 3
F. Comments
TYPE II SWEEP VELOCITY ESTIMATED 900 KM/SEC.
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Unspecified geomagnetic activity 1749Strong far side CME 327Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments and prominences 595Incoming & Unnumbered Active Regions 1351
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |