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[LDM #TUN-623089]: LDM Duplicate Products

Bob,

> I follow that the sequence number is part of the metadata, but the last 3 
> digits of the sequence are at the top of every product we receive.
> 
> Here is the metadata for 3 METAR collectives:
> Nov 07 21:06:45 notifyme[16267] INFO:       89 20141107210607.936 IDS|DDPLUS 
> 3779871  SAUS70 KWBC 072200 /NWSTG/0003779871
> Nov 07 21:06:45 notifyme[16267] INFO:      413 20141107210607.946 IDS|DDPLUS 
> 3779901  SAUS70 KWBC 072106 /NWSTG/0003779901
> Nov 07 21:06:45 notifyme[16267] INFO:      314 20141107210607.949 IDS|DDPLUS 
> 3779914  SAUS70 KWBC 072100 RRM /NWSTG/0003779914
> 
> And here are the products themselves:
> 
> Example #1
> 871
> SAUS70 KWBC 072200
> METAR
> KADS 072147Z 17009KT 13SM SKC 19/01 A3008=
> ...
> 
> Example #2
> 901
> SAUS70 KWBC 072106
> METAR
> KANQ 072115Z AUTO 00000KT 10SM OVC040 04/M03 A3004 RMK=
> ...
> 
> Example #3
> 914
> SAUS70 KWBC 072100 RRM
> METAR
> KRHV 072049Z 31005KT 10SM SKC 24/13 A3016=
> ...
> 
> So are you saying that the 3-digit number at the top of each product is not 
> included in the checksum?

The sequence number is not used to compute the checksum for the products that 
are part of our Internet Data Distribution (IDD) system. I've just been told, 
however, that you use the ingest system from Planetary Data. We don't know how 
the checksums for data products from that system are computed.

> Bob

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: TUN-623089
Department: Support LDM
Priority: Normal
Status: Closed