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AER Nowcast of Solar Energetic Protons



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Real-time SEP Nowcast


Map of the Integral Proton Fluence

Choose Location and Altitude

Latitude (degrees):

Longitude (degrees):

Altitude (km):

Energy (> MeV):


Last Update Time: 2018-02-23 0600 UT
Kp = 2

Current Integral Flux by Altitude

Selected Latitude: 40, Longitude: 40

Proton Flux Tables

Choose the proton energy:
Altitude (km) >1 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.039
20000 0.148
25000 0.986
30000 0.986
35000 0.986
Altitude (km) >5 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.039
20000 0.148
25000 0.310
30000 0.310
35000 0.310
Altitude (km) >10 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.039
20000 0.148
25000 0.189
30000 0.189
35000 0.189
Altitude (km) >30 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.039
20000 0.086
25000 0.086
30000 0.086
35000 0.086
Altitude (km) >50 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.039
20000 0.059
25000 0.059
30000 0.059
35000 0.059
Altitude (km) >100 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.014
15000 0.036
20000 0.036
25000 0.036
30000 0.036
35000 0.036
Altitude (km) >500 MeV (pfu)
500 0.002
1000 0.002
2000 0.003
5000 0.005
10000 0.011
15000 0.011
20000 0.011
25000 0.011
30000 0.011
35000 0.011

The cursor position option allows for a more exact determination of proton flux at the specified altitude, latitude, and longitude.