1. Home
  2. Data Access

Data Access

Data Access content

PPS's 'ftp://gpmweb2' Service will be Replaced Soon

Due to recent changes to popular web browsers (i.e. Firefox, Edge, Chrome, etc.) PPS's gpmweb2 FTP content which was viewable with a web browser may no longer display. This content will be moving to an alternate 'HTTPS' service. Consequently, all the old links and source material referencing ftp://gpmweb2 will be updated to refer to 'https://gpmweb2https' once this service is activated for the PPS public website: https://pps.gsfc.nasa.gov These changes and the new 'HTTPS' service are expected to go into effect around or before the next PPS preventive maintenance downtime on Tuesday May 04

Accessing the PPS Near Real-time (NRT) Data using HTTPS and the jsimpsonhttps Server

Date Last Updated
January 15th, 2021
Document Description

At the end of 2020, PPS anticipates that it will replace the current FTP access to its Production data archive with FTPS and HTTPS access. In choosing between FTPS and HTTPS, select HTTPS in situations where firewall restrictions prevent FTPS access.

File Downloads
jsimpsonhttps_retrieval.pdf

Precipitation Processing System (PPS) Transition from FTP to FTPS for GPM Near Real-time (NRT) Data (jsimpson)

Date Last Updated
January 15th, 2021
Document Description

NASA information security management authorities mandated that continued use of the File Transfer Protocol (FTP)
should not be allowed, even when used to provide access to publicly-available, non-sensitive information. This decision
was made because FTP login credentials are sent in clear text. For this reason, they mandated that all FTP sites either
convert to some form of encrypted login mechanism or be shut down. PPS determined, after reviewing available

File Downloads
FTP-FTPS-Transition.pdf

Accessing the PPS Production Archive using HTTPS and the arthurhouhttps Server

Date Last Updated
January 15th, 2021
Document Description

At the end of 2020, PPS anticipates that it will replace the current FTP access to its Production data archive with FTPS and HTTPS access. In choosing between FTPS and HTTPS, select HTTPS in situations where firewall restrictions prevent FTPS access.

File Downloads
arthurhouhttps_retrieval.pdf

Precipitation Processing System (PPS) Transition from FTP to FTPS for GPM Research / Production Data (arthurhou)

Date Last Updated
January 15th, 2021
Document Description

NASA information security management authorities mandated that continued use of the File Transfer Protocol (FTP) should not be allowed, even when used to provide access to publicly-available, non-sensitive information. This decision was made because FTP login credentials are sent in clear text. For this reason, they mandated that all FTP sites either convert to some form of encrypted login mechanism or be shut down.

File Downloads
arthurhouFTP-FTPS-Transition.pdf

Temporary delay of GPM NRT Data on December 7, 2020

The Precipitation Processing System is planning to migrate the jsimpson.pps.eosdis.nasa.gov (which includes jsimpsonftps.pps.eosdis.nasa.gov) to the CentOS 8 operating system. This update will mean that GPM near real-time (NRT) data will not be available to users during the period of the update. The action is planned for Monday, 7 December 2020. We intend starting at 14 UTC (09:00 EST). We hope the outage will be between 3-5 hours. During this period no GPM NRT will be available. Some data will not be produced at the usual time during this period and will be behind normal latency. No data will

PPS Extended Maintenance and Archive Downtime Sep 22 - Sep 24, 2020 (3 Days)

The PPS (Precipitation Processing System) will be down starting Tuesday September 22, 2020 (0800 EDT|1200 UTC) -through- Thursday September 24, 2020 (Uptime- Still TBD) for a very important multi-day archive upgrade. It is not anticipated that this work will have any impact on the near real-time data servers (jsimpson) or data collection from the GPM satellite and constellation. It is important to be aware that this will be an extensive PPS GPM Archive upgrade that will impact crucial PPS services. Services that may NOT be available during this time include: PPS 'arthurhou' GPM research data

PPS Will be Down for Special Maintenance on Sunday Sep. 13, 2020

The PPS (Precipitation Processing System) will be down Sunday September 13, 2020 from approximately 1:00 PM - 7:00pm EDT (17:00 - 23:00 UTC) for scheduled GPM archive maintenance. It is projected that PPS's GPM research data server (Arthurhou) will offline for 6-8 hours and all data processing, etc. will be halted until maintenance has concluded. Data will continue to be collected from the GPM Core Observatory and constellation satellites, and access to the GPM near real-time data server (Jsimpson) will not be affected. During this time all data transfers between PPS source and its consumer

Resumption of GPM Core Observatory Science Operations and NRT Data

On 26 August 2020 at approximately 14 UTC GMI was commanded into science operations mode. Since that time PPS has been producing level 1 and level 2 GMI data. Everything continues to be nominal with GMI science operations. On 26 August 2020 at approximately 23 UTC the DPR was commanded into science operations mode. Since that time PPS has been receiving 1B data from JAXA and producing L2 products including the combined GMI/DPR product. Everything continues to be nominal with DPR science operations. Users are free to resume retrieving GPM NRT data. Initial investigation indicated that the

Currently Not Receiving Data from the GPM Core Satellite

Effective about 11 UTC 19 August 2020, the GPM Mission Operations Center (MOC) stopped receiving data from the GPM Core Observatory satellite. The Flight Operations Team (FOT) is currently assessing the situation. They are working to determine what configuration needs to be accomplished to reestablish data from the satellite. This will likely take a while and there will be no GPM Core Observatory data products available until communications has been successfully reestablished and tested. The IMERG product will continue to be produced but no GMI data will be included in either the early or late
Subscribe to Data Access