Data used:
Files:
Contains: BSRN, ND, 3-hourly Kp, 3-hourly Ap, Cp, C9, ISN, F10.7Adj, Q
Updated: Monthly (a little over one month after end of the month)
Each month a yyyy.vm file is produced, where yyyy is the year and m is the month. When the year is complete, file becomes simply yyyy.
Note: This data is now being synthesized from three separate data sources, due to NGDC's inability to provide regular updates. The data comes directly from the primary data sources as of 2018 Jan 1.
Source A:
Source B:
Source C:
Files:
Contains: F10.7Obs from 1947 Jan 01 until end of previous month
Updated: Monthly (end of month)
Files:
Contains: 3-hourly Kp for the current quarter to date (previous quarters also available)
Updated: Every 3 hours
Files:
Contains: Daily F10.7Obs, ISN for the current quarter to date (previous quarters also available)
Updated: Daily
Files:
Contains: 45-day forecast of daily Ap and F10.7Adj
Updated: Daily
Files:
Contains: Monthly ISN and F10.7Adj for approximately two years
Updated: Monthly
Data documentation can be found at:
Geomagnetic and Solar Activity Indices
Penticton Solar Radio Flux Values
2800 MHz Solar Flux
Users Guide to the Preliminary Report and Forecast of Solar Geophysical Data
Process:
Observed data is produced by combining Sources 1 and 2 with Sources 3 and 4 to the current date. Missing F10.7Adj values are estimated using linear interpolation (Q=4). Missing F10.7Obs values are estimated using F10.7Adj, adjusted to Earth orbital radius.
Daily predicted data (Ap and F10.7Adj) is produced using Source 5. F10.7Obs values are estimated using F10.7Adj, adjusted to Earth orbital radius.
Monthly predicted data (F10.7Adj) is produced using Source 6. F10.7Obs values are estimated using F10.7Adj, adjusted to Earth orbital radius.
Monthly fit data (F10.7Adj) is produced using the fit specified by the MONTHLY_FIT_TYPE keyword. F10.7Obs values are estimated using F10.7Adj, adjusted to Earth orbital radius.
Missing values are left blank.
Keywords:
DATATYPE CssiSpaceWeather
Specifies the data format type for the file.
VERSION major.minor
Provides major and minor version of current data format.
UPDATED yyyy Mon dd hh:mm:ss UTC
Provides UTC date and time of current update.
NUM_OBSERVED_POINTS number
Indicates number of records of data in the Observed Data section.
BEGIN OBSERVED
END OBSERVED
Marks beginning and end of the Observed Data section.
NUM_DAILY_PREDICTED_POINTS number
Indicates number of records of data in the Daily Predicted Data section.
BEGIN DAILY_PREDICTED
END DAILY_PREDICTED
Marks beginning and end of the Daily Predicted Data section.
NUM_MONTHLY_PREDICTED_POINTS number
Indicates number of records of data in the Monthly Predicted Data section.
BEGIN MONTHLY_PREDICTED
END MONTHLY_PREDICTED
Marks beginning and end of the Monthly Predicted Data section. Data is output for the first day of the month.
NUM_MONTHLY_FIT_POINTS number
Indicates number of records of data in the Monthly Predicted Data section.
MONTHLY_FIT_TYPE fit
Specifies polynomial or other fit type used to estimate F10.7Adj.
BEGIN MONTHLY_FIT
END MONTHLY_FIT
Marks beginning and end of the Monthly Fit Data section. Data is output for the first day of the month.
Data Format:
---------------------------------------------------------------------------------------------------------------------------------- FORMAT(I4,I3,I3,I5,I3,8I3,I4,8I4,I4,F4.1,I2,I4,F6.1,I2,5F6.1) ---------------------------------------------------------------------------------------------------------------------------------- Column 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111 0000000001111111111222222222233333333334444444444555555555566666666667777777777888888888899999999990000000000111111111122222222223 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 ---------------------------------------------------------------------------------------------------------------------------------- Adj Adj Adj Obs Obs Obs yyyy mm dd BSRN ND Kp Kp Kp Kp Kp Kp Kp Kp Sum Ap Ap Ap Ap Ap Ap Ap Ap Avg Cp C9 ISN F10.7 Q Ctr81 Lst81 F10.7 Ctr81 Lst81 ---------------------------------------------------------------------------------------------------------------------------------- yyyy mm dd nnnn nn nn nn nn nn nn nn nn nn nnn nnn nnn nnn nnn nnn nnn nnn nnn nnn n.n n nnn nnn.n n nnn.n nnn.n nnn.n nnn.n nnn.n ---------------------------------------------------------------------------------------------------------------------------------- 2000 01 01 2272 7 53 47 40 33 43 30 43 37 327 56 39 27 18 32 15 32 22 30 1.3 6 48 125.6 0 160.5 175.0 129.9 165.6 179.0 ----------------------------------------------------------------------------------------------------------------------------------
Columns | Description |
---|---|
001-004 | Year |
006-007 | Month (01-12) |
009-010 | Day |
012-015 | Bartels Solar Rotation Number. A sequence of 27-day intervals counted continuously from 1832 Feb 8. |
017-018 | Number of Day within the Bartels 27-day cycle (01-27). |
020-021 | Planetary 3-hour Range Index (Kp) for 0000-0300 UT. |
023-024 | Planetary 3-hour Range Index (Kp) for 0300-0600 UT. |
026-027 | Planetary 3-hour Range Index (Kp) for 0600-0900 UT. |
029-030 | Planetary 3-hour Range Index (Kp) for 0900-1200 UT. |
032-033 | Planetary 3-hour Range Index (Kp) for 1200-1500 UT. |
035-036 | Planetary 3-hour Range Index (Kp) for 1500-1800 UT. |
038-039 | Planetary 3-hour Range Index (Kp) for 1800-2100 UT. |
041-042 | Planetary 3-hour Range Index (Kp) for 2100-0000 UT. |
044-046 | Sum of the 8 Kp indices for the day expressed to the nearest third of a unit. |
048-050 | Planetary Equivalent Amplitude (Ap) for 0000-0300 UT. |
052-054 | Planetary Equivalent Amplitude (Ap) for 0300-0600 UT. |
056-058 | Planetary Equivalent Amplitude (Ap) for 0600-0900 UT. |
060-062 | Planetary Equivalent Amplitude (Ap) for 0900-1200 UT. |
064-066 | Planetary Equivalent Amplitude (Ap) for 1200-1500 UT. |
068-070 | Planetary Equivalent Amplitude (Ap) for 1500-1800 UT. |
072-074 | Planetary Equivalent Amplitude (Ap) for 1800-2100 UT. |
076-078 | Planetary Equivalent Amplitude (Ap) for 2100-0000 UT. |
080-082 | Arithmetic average of the 8 Ap indices for the day. |
084-086 | Cp or Planetary Daily Character Figure. A qualitative estimate of overall level of magnetic activity for the day determined from the sum of the 8 Ap indices. Cp ranges, in steps of one-tenth, from 0 (quiet) to 2.5 (highly disturbed). |
088-088 | C9. A conversion of the 0-to-2.5 range of the Cp index to one digit between 0 and 9. |
090-092 | International Sunspot Number. Records contain the Zurich number through 1980 Dec 31 and the International Brussels number thereafter. |
094-098 | 10.7-cm Solar Radio Flux (F10.7) Adjusted to 1 AU. Measured at Ottawa at 1700 UT daily from 1947 Feb 14 until 1991 May 31 and measured at Penticton at 2000 UT from 1991 Jun 01 on. Expressed in units of 10-22 W/m2/Hz. |
100-100 | Flux Qualifier. 0 indicates flux required no adjustment; 1 indicates flux required adjustment for burst in progress at time of measurement; 2 indicates a flux approximated by either interpolation or extrapolation; 3 indicates no observation; and 4 indicates CSSI interpolation of missing data. |
102-106 | Centered 81-day arithmetic average of F10.7 (adjusted). |
108-112 | Last 81-day arithmetic average of F10.7 (adjusted). |
114-118 | Observed (unadjusted) value of F10.7. |
120-124 | Centered 81-day arithmetic average of F10.7 (observed). |
126-130 | Last 81-day arithmetic average of F10.7 (observed). |