# simplemseed
[](https://pypi.org/project/simplemseed/)
[](https://simplemseed.readthedocs.io/en/latest/?badge=latest)
[Miniseed3](http://docs.fdsn.org/projects/miniseed3) (and reading 2) in pure python.
Read the docs at [readthedocs](https://readthedocs.org/projects/simplemseed/)
# Miniseed3
Write and read mseed3 records like:
```
#!/usr/bin/env python3
from simplemseed import MSeed3Header, MSeed3Record, FDSNSourceId, readMSeed3Records
data = [(i % 99 - 49) for i in range(0, 1000)]
header = MSeed3Header()
header.starttime = "2024-01-01T15:13:55.123456Z"
header.sampleRatePeriod = 20
sid = FDSNSourceId.createUnknown(header.sampleRatePeriod)
ms3record = MSeed3Record(header, sid, data)
ms3filename = "test.ms3"
with open(ms3filename, "wb") as of:
of.write(ms3record.pack())
print(f" save: {ms3record.details()} ")
print(f" to: {ms3filename} ")
print()
with open(ms3filename, "rb") as infile:
for readms3record in readMSeed3Records(infile):
print(f" extract: {readms3record.details()} ")
print(f" from: {ms3filename} ")
```
Access uncompressed timeseries data as numpy ndarray with:
```
dataArray = ms3record.decompress()
```
Also includes parsing for miniseed2 and
[miniseed3](http://docs.fdsn.org/projects/miniseed3/en/latest/index.html#) for primitive data arrays and
for Steim1 and Steim2 decompression, in pure python.
Read miniseed2:
```
with open(ms2filename, "rb") as inms2:
for ms2rec in simplemseed.readMiniseed2Records(inms2):
print(ms2rec.summary())
```
or read and convert to miniseed3:
```
with open(ms3filename, "wb") as outms3:
with open(ms2filename, "rb") as inms2:
for ms2rec in simplemseed.readMiniseed2Records(inms2):
ms3rec = simplemseed.mseed2to3(ms2rec)
outms3.write(ms3rec.pack())
```
# Command line tools:
# mseed3details
- print details about each miniseed3 record
```
mseed3details casee.mseed3
FDSN:CO_CASEE_00_H_H_Z, version 4, 285 bytes (format: 3)
start time: 2023-06-17T04:53:54.468392Z (168)
number of samples: 104
sample rate (Hz): 100.0
flags: [00000000] 8 bits$
CRC: 0x4D467F27
extra header length: 31 bytes
data payload length: 192 bytes
payload encoding: STEIM-2 integer compression (val: 11)
extra headers:
Total 104 samples in 1 records
```
# getting and setting extra header values
```
% mseed3details --get "/FDSN/Time" casee_two.ms3
{"Quality": 0}
% mseed3details --getall "/FDSN/Time/Quality" casee_two.ms3 --verbose
file: casee_two.ms3
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)
0
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)
0
% mseed3details --set "/data" '{ "key": "val", "keyb": 3 }' casee_two.ms3
% mseed3details --getall "/data" casee_two.ms3 --verbose
file: casee_two.ms3
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)
{"key": "val", "keyb": 3}
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)
pointer not found in extra headers
% mseed3details --setall "/data" '{ "key": "else", "keyb": 4 }' casee_two.ms3
% mseed3details --set "/data/keyb" 42 casee_two.ms3
% mseed3details --getall "/data" casee_two.ms3 --verbose
file: casee_two.ms3
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)
{"key": "else", "keyb": 42}
FDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)
{"key": "else", "keyb": 4}
```
# mseed3merge
- merge contiguous, in order, mseed3 records into larger records. Decompression
is needed as steim1 and 2 cannot be merged without decompression, primitive
types are already decompressed.
```
mseed3merge -o merged.ms3 --decomp bird_jsc.ms3
```
# mseed2to3
- convert miniseed 2 to miniseed3.
Note most blockettes are ignored, other than 100, 1000, 1001
```
mseed2to3 --ms2 casee.ms2 --ms3 casee.ms3
```
# fdsnsourceid
- parse FDSN sourceids
Split a FDSN source id:
```
fdsnsourceid FDSN:CO_JSC_00_H_H_Z
FDSN:CO_JSC_00_H_H_Z
Net: CO
Sta: JSC
Loc: 00
Band: H - High Broadband, >= 80 to < 250 Hz, response period >= 10 sec
Source: H - High Gain Seismometer
Subsource: Z
```
Describe a band code:
```
fdsnsourceid -b Q
Band: Q - Q - Greater than 10 days , < 0.000001 Hz
```
Find the correct band code for a sample rate:
```
fdsnsourceid --sps 87
Rate: 87.0 - H - H - High Broadband , >= 80 to < 250 Hz, response period >= 10 sec
Rate: 87.0 - E - E - Extremely Short Period, >= 80 to < 250 Hz, response period < 10 sec
```
Describe a source code:
```
fdsnsourceid --source H N
Source: H - High Gain Seismometer
Measures displacement/velocity/acceleration along a line defined by the the dip and azimuth.
Source: N - Accelerometer
Measures displacement/velocity/acceleration along a line defined by the the dip and azimuth.
```
# Example
There are more examples in the examples directory.
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"description": "# simplemseed\n\n\n[](https://pypi.org/project/simplemseed/)\n[](https://simplemseed.readthedocs.io/en/latest/?badge=latest)\n\n[Miniseed3](http://docs.fdsn.org/projects/miniseed3) (and reading 2) in pure python.\n\nRead the docs at [readthedocs](https://readthedocs.org/projects/simplemseed/)\n\n# Miniseed3\n\nWrite and read mseed3 records like:\n\n```\n#!/usr/bin/env python3\n\nfrom simplemseed import MSeed3Header, MSeed3Record, FDSNSourceId, readMSeed3Records\n\ndata = [(i % 99 - 49) for i in range(0, 1000)]\nheader = MSeed3Header()\nheader.starttime = \"2024-01-01T15:13:55.123456Z\"\nheader.sampleRatePeriod = 20\nsid = FDSNSourceId.createUnknown(header.sampleRatePeriod)\nms3record = MSeed3Record(header, sid, data)\n\nms3filename = \"test.ms3\"\nwith open(ms3filename, \"wb\") as of:\n of.write(ms3record.pack())\n print(f\" save: {ms3record.details()} \")\n print(f\" to: {ms3filename} \")\nprint()\nwith open(ms3filename, \"rb\") as infile:\n for readms3record in readMSeed3Records(infile):\n print(f\" extract: {readms3record.details()} \")\n print(f\" from: {ms3filename} \")\n```\n\nAccess uncompressed timeseries data as numpy ndarray with:\n```\ndataArray = ms3record.decompress()\n```\n\n\nAlso includes parsing for miniseed2 and\n[miniseed3](http://docs.fdsn.org/projects/miniseed3/en/latest/index.html#) for primitive data arrays and\nfor Steim1 and Steim2 decompression, in pure python.\n\nRead miniseed2:\n```\nwith open(ms2filename, \"rb\") as inms2:\n for ms2rec in simplemseed.readMiniseed2Records(inms2):\n print(ms2rec.summary())\n```\nor read and convert to miniseed3:\n```\nwith open(ms3filename, \"wb\") as outms3:\n with open(ms2filename, \"rb\") as inms2:\n for ms2rec in simplemseed.readMiniseed2Records(inms2):\n ms3rec = simplemseed.mseed2to3(ms2rec)\n outms3.write(ms3rec.pack())\n```\n\n# Command line tools:\n\n\n# mseed3details\n- print details about each miniseed3 record\n```\nmseed3details casee.mseed3\n FDSN:CO_CASEE_00_H_H_Z, version 4, 285 bytes (format: 3)\n start time: 2023-06-17T04:53:54.468392Z (168)\n number of samples: 104\n sample rate (Hz): 100.0\n flags: [00000000] 8 bits$\n CRC: 0x4D467F27\n extra header length: 31 bytes\n data payload length: 192 bytes\n payload encoding: STEIM-2 integer compression (val: 11)\n extra headers:\n\nTotal 104 samples in 1 records\n```\n\n# getting and setting extra header values\n\n```\n% mseed3details --get \"/FDSN/Time\" casee_two.ms3\n {\"Quality\": 0}\n% mseed3details --getall \"/FDSN/Time/Quality\" casee_two.ms3 --verbose\nfile: casee_two.ms3\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)\n 0\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)\n 0\n% mseed3details --set \"/data\" '{ \"key\": \"val\", \"keyb\": 3 }' casee_two.ms3\n% mseed3details --getall \"/data\" casee_two.ms3 --verbose\nfile: casee_two.ms3\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)\n {\"key\": \"val\", \"keyb\": 3}\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)\n pointer not found in extra headers\n% mseed3details --setall \"/data\" '{ \"key\": \"else\", \"keyb\": 4 }' casee_two.ms3\n% mseed3details --set \"/data/keyb\" 42 casee_two.ms3\n% mseed3details --getall \"/data\" casee_two.ms3 --verbose\nfile: casee_two.ms3\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.008392Z 2023-06-17T04:53:50.178392Z (18 pts)\n {\"key\": \"else\", \"keyb\": 42}\nFDSN:CO_CASEE_00_H_H_Z 2023-06-17T04:53:50.188392Z 2023-06-17T04:53:55.498392Z (532 pts)\n {\"key\": \"else\", \"keyb\": 4}\n```\n\n# mseed3merge\n- merge contiguous, in order, mseed3 records into larger records. Decompression\nis needed as steim1 and 2 cannot be merged without decompression, primitive\ntypes are already decompressed.\n```\nmseed3merge -o merged.ms3 --decomp bird_jsc.ms3\n```\n\n# mseed2to3\n- convert miniseed 2 to miniseed3.\n\nNote most blockettes are ignored, other than 100, 1000, 1001\n\n```\nmseed2to3 --ms2 casee.ms2 --ms3 casee.ms3\n```\n\n\n# fdsnsourceid\n- parse FDSN sourceids\n\nSplit a FDSN source id:\n```\nfdsnsourceid FDSN:CO_JSC_00_H_H_Z\n FDSN:CO_JSC_00_H_H_Z\n Net: CO\n Sta: JSC\n Loc: 00\n Band: H - High Broadband, >= 80 to < 250 Hz, response period >= 10 sec\n Source: H - High Gain Seismometer\n Subsource: Z\n``` \n\nDescribe a band code:\n```\nfdsnsourceid -b Q\n Band: Q - Q - Greater than 10 days , < 0.000001 Hz\n```\n\nFind the correct band code for a sample rate:\n```\nfdsnsourceid --sps 87\n Rate: 87.0 - H - H - High Broadband , >= 80 to < 250 Hz, response period >= 10 sec\n Rate: 87.0 - E - E - Extremely Short Period, >= 80 to < 250 Hz, response period < 10 sec\n```\n\nDescribe a source code:\n```\nfdsnsourceid --source H N\n Source: H - High Gain Seismometer\n Measures displacement/velocity/acceleration along a line defined by the the dip and azimuth.\n Source: N - Accelerometer\n Measures displacement/velocity/acceleration along a line defined by the the dip and azimuth.\n```\n\n# Example\n\nThere are more examples in the examples directory.\n",
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