The sniffwave program reads waveform messages from an Earthworm transport ring and, for each message, prints the logo and header information to the screen.
Usage: sniffwave <ring name> [sta] [comp] [net] [loc] [y/n/s/time] [v]
Note: All parameters are positional, and all but first are optional.
Appending the optional 'v' or 'verbose' argument causes module,
installation and type names to be printed in addition to usual ID numbers.
The [y/n/s] flag is a data flag or 'time in seconds'. If 'y' is specified
the full data contained in the packet is printed out.
If flag set to s, provides max/min/avg statistics of the trace data.
If flag set to numeric value, program runs only for that number of seconds.
If sta comp net (but not loc) are specified then only TraceBuf
packets will be fetched (not TraceBuf2); otherwise both are fetched.
Example: sniffwave WAVE_RING PHOB wild NC wild n
Example: sniffwave WAVE_RING wild wild wild y verbose
MSEED capability starting with version 2.5.1, prints mseed headers
of TYPE_MSEED packets (no filtering yet).
Specifying the sta, comp and net (but not loc) arguments will sniff for matching TYPE_TRACEBUF and TYPE_TRACE_COM_UA packets. Specifying with any other combination of SCNL will also sniff for TYPE_TRACEBUF2 and TYPE_TRACE2_COM_UA packets.
Specifying just the ring name argument will display all messages found in the ring.
Appending the optional "verbose" argument causes module, installation and type names to be printed in addition to usual ID numbers.
Examples:
sniffwave WAVE_RING PHOB wild NC wild n sniffwave WAVE_RING NP1 HHZ ZZ 01 n sniffwave WAVE_RING wild wild wild y verbose sniffwave WAVE_RINGThis would result in the output (not consider the header in italic font style):
SCNL V1 V2 P T N SR ST ET Q1 Q2 I M T L D F ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CAFE.HNZ.IV.-- (0x32 0x30) 0 s4 408 200.0 2010/06/22 14:15:55.67 (1277216155.6650) 2010/06/22 14:15:57.70 (1277216157.7000) 0x00 0x00 i73 m52 t19 len1696 [D: 6.3s F: 0.2s] CAFE.HNE.IV.-- (0x32 0x30) 0 s4 408 200.0 2010/06/22 14:15:55.43 (1277216155.4250) 2010/06/22 14:15:57.46 (1277216157.4600) 0x00 0x00 i73 m52 t19 len1696 [D: 6.5s F: 0.2s] TIP.HHZ.MN.-- (0x32 0x30) 0 s4 412 100.0 2010/06/22 14:15:53.64 (1277216153.6425) 2010/06/22 14:15:57.75 (1277216157.7525) 0x00 0x00 i73 m52 t19 len1712 [D: 6.2s F: 0.2s] MGR.HHZ.IV.-- overlap of 4.84s 2010/06/22 14:10:36.29 (1277215836.2900) 2010/06/22 14:10:41.13 (1277215841.1300) MGR.HHZ.IV.-- (0x32 0x30) 0 s4 484 100.0 2010/06/22 14:10:36.29 (1277215836.2900) 2010/06/22 14:10:41.12 (1277215841.1200) 0x00 0x00 i73 m52 t19 len2000 [D:322.9s F:20.9s] BLLA.EHN.IV.-- (0x32 0x30) 0 s4 404 100.0 2010/06/22 14:16:53.36 (1277216213.3600) 2010/06/22 14:16:57.39 (1277216217.3900) 0x00 0x00 i73 m52 t19 len1680 [D: 5.5s F: 0.2s] CDCA.EHE.IV.-- (0x32 0x30) 0 s4 336 100.0 2010/06/22 14:16:52.64 (1277216212.6400) 2010/06/22 14:16:55.99 (1277216215.9900) 0x00 0x00 i73 m52 t19 len1408 [D: 6.9s F: 7.9s] CIGN.HHN.IV.-- overlap of 1.00s 2010/06/22 14:16:52.67 (1277216212.6700) 2010/06/22 14:16:53.67 (1277216213.6700) CIGN.HHN.IV.-- (0x32 0x30) 0 s4 412 100.0 2010/06/22 14:16:52.67 (1277216212.6700) 2010/06/22 14:16:56.78 (1277216216.7800) 0x00 0x00 i73 m52 t19 len1712 [D: 6.1s F: 7.1s] CRAC.EHN.IV.-- (0x32 0x30) 0 s4 328 100.0 2010/06/22 14:16:54.76 (1277216214.7600) 2010/06/22 14:16:58.03 (1277216218.0300) 0x00 0x00 i73 m52 t19 len1376 [D: 4.9s F: 0.3s] CRE.HHZ.IV.-- (0x32 0x30) 0 s4 334 100.0 2010/06/22 14:16:55.02 (1277216215.0200) 2010/06/22 14:16:58.35 (1277216218.3500) 0x00 0x00 i73 m52 t19 len1400 [D: 4.6s F: 0.2s] CSNT.HHZ.IV.-- (0x32 0x30) 0 s4 378 100.0 2010/06/22 14:16:56.98 (1277216216.9800) 2010/06/22 14:17:00.75 (1277216220.7500) 0x00 0x00 i73 m52 t19 len1576 [D: 2.2s F: 0.2s] MGR.HHN.IV.-- (0x32 0x30) 0 s4 5 100.0 2010/06/22 14:05:37.11 (1277215537.1100) 2010/06/22 14:05:37.15 (1277215537.1500) 0x00 0x00 i73 m52 t19 len 84 [D:606.1s F:10.1s] MGR.HHN.IV.-- gap of 2.24s 2010/06/22 14:05:37.16 (1277215537.1600) 2010/06/22 14:05:39.40 (1277215539.4000) MGR.HHN.IV.-- (0x32 0x30) 0 s4 432 100.0 2010/06/22 14:05:39.40 (1277215539.4000) 2010/06/22 14:05:43.71 (1277215543.7100) 0x00 0x00 i73 m52 t19 len1792 [D:599.5s F: 0.0s] MGR.HHN.IV.-- (0x32 0x30) 0 s4 432 100.0 2010/06/22 14:05:43.72 (1277215543.7200) 2010/06/22 14:05:48.03 (1277215548.0300) 0x00 0x00 i73 m52 t19 len1792 [D:595.2s F: 0.0s] SMPL.BHZ.FR.00 (0x32 0x30) 0 s4 25 25.0 2010/06/22 14:15:39.23 (1277216139.2268) 2010/06/22 14:15:40.19 (1277216140.1868) 0x00 0x00 i73 m52 t19 len 164 [D: 3.1s F: 1.0s] MUGIO.HHN.CH.-- (0x32 0x30) 0 s4 218 120.0 2010/06/22 14:15:40.36 (1277216140.3583) 2010/06/22 14:15:42.17 (1277216142.1666) 0x64 0x00 i73 m50 t19 len 936 [D: 1.1s F: 1.9s] PLONS.HHE.CH.-- (0x32 0x30) 0 s4 240 120.0 2010/06/22 14:15:38.80 (1277216138.7966) 2010/06/22 14:15:40.79 (1277216140.7883) 0x64 0x00 i73 m50 t19 len1024 [D: 2.5s F: 2.1s] VTS.BHZ.MN.-- (0x32 0x30) 0 s4 412 20.0 2010/06/22 14:15:19.52 (1277216119.5191) 2010/06/22 14:15:40.07 (1277216140.0691) 0x00 0x00 i73 m52 t19 len1712 [D: 3.2s F:21.0s] SALO.HHE.IV.-- (0x32 0x30) 0 s4 224 100.0 2010/06/22 14:14:53.64 (1277216093.6400) 2010/06/22 14:14:55.87 (1277216095.8700) 0x64 0x00 i73 m51 t19 len 960 [D:48.2s F: 0.0s] MURB.HHZ.IV.-- gap of 2.06s 2010/06/22 14:14:24.87 (1277216064.8700) 2010/06/22 14:14:26.93 (1277216066.9300) MURB.HHZ.IV.-- (0x32 0x30) 0 s4 206 100.0 2010/06/22 14:14:26.93 (1277216066.9300) 2010/06/22 14:14:28.98 (1277216068.9800) 0x00 0x00 i73 m52 t19 len 888 [D:75.1s F:38.0s] SALO.HHE.IV.-- (0x32 0x30) 0 s4 224 100.0 2010/06/22 14:14:55.88 (1277216095
where
| SCNL | is Station.Channel.Network.Location |
| V1 | is the version field 1 |
| V2 | is the version field 2 |
| P | is the pin number (obsolete) |
| T | is the sample type. "s4" means that the data is four-byte signed integers in Sparc byte order. "i4" would indicate four-byte, Intel order |
| N | is the number of sample in the packet |
| SR | is the nominal sampling rate, as advertised by the producer of the packet |
| ST, ET | are the actual times of the first and last samples in the packet, in human readable form, and (seconds since 1970) |
| Q1 | is the data quality field 1 |
| Q2 | is the data quality field 2 |
| I | is the ID number of the Installation |
| M | is the ID number of the Module |
| T | is the ID number of the Type of packet |
| L | is the length of packet in bytes |
| D | is the latency of the data, that is the difference between NOW and the last sample time for that SCNL |
| F | is the latency of feeding, that is the difference between NOW and the time when last packet for that SCNL has been received |