Viewing archive of Sunday, 27 June 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 Jun 27 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 178 Issued at 0245Z on 27 JUN 1999 This report is compiled from data received at SWO on 26 JUNA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0440 0441 0445 8604 N12W70 SF 190 0508 0512 0514 8598 N23E03 M2.3 2N 63 0714 0725 0749 8598 N25E00 C7.0 1F 1000 80
B. Proton Events
A WEAK PROTON ENHANCEMENT WAS IN PROGRESS FOR
MOST OF THE PERIOD. A MAXIMUM OF 1 PFU WAS OBSERVED NEAR 26/0500Z.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET AT
THE BEGINNING OF THE PERIOD AND UNSETTLED TO ACTIVE FROM 26/0300Z
UNTIL THE END OF THE PERIOD. SUDDEN IMPULSES WERE OBSERVED AT
26/0326Z (16 NT) AND 26/2020Z (38 NT).
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 200 SSN 310 AFR/AP 015/017 X-RAY BACKGROUND B8.7 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 3.4E+07 GT 10 MEV 3.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.40E+05 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 3 3 4 3 3 3 3 PLANETARY 2 3 4 4 4 3 4 3
F. Comments
A 245 MHZ NOISE STORM WAS IN PROGRESS FOR MOST OF THE PERIOD.
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
Unproven theories 340AR 3637, 3638, 3643 67Filaments and prominences 55Space Weather Memes 336Growth of Cycle 25 433
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/23 | M3.0 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 125.4 +21.1 |