1. POES to JPSS Transition Marlin O
POES to JPSS Transition Marlin O. Perkins Direct Readout Program Manager April 09, “Strengthening Partnerships to Enhance User Readiness, Reception, and Utility”

2. Agenda Background APT Service HRPT Service
Summary of JPSS Direct Readout Plan
High Rate Data (HRD) Service
Low Rate Data (LRD) Service
HRPT Transition to:
HRD
LRD
Summary

3. Direct Services Branch
Branch Chief
SARSAT Program Manager
Christopher O’Connors
One vacancy
(USMCC System Manager)
Administrative Support
Denise Buckmon
Direct Services Team
SARSAT
Technical Lead/Space Segment Engineer
Mickey Fitzmaurice
Argos DCS
Scott Rogerson
Program Manager
GOES DCS
Kay Metcalf
Program Manager
USMCC System Manager
Vacant
USMCC Operations & Maintenance Contract
OSPO Support Services Contract
HI & FL MEOLUT Dev. Contracts
Direct Readout
Marlin Perkins
Program Manager
GOES DCS
Letecia Reeves
Customer Service
Rebroadcast Services
Paul Seymour
Program Manager
Ground Segment Engineer
Jesse Reich
Program Analyst
Stephen Roark
NOAA Corps Officer
LTJG Timothy Sinquefield
LUT Maintenance Contract

4. Background Current Direct Readout Services:
Automatic Picture Transmission (APT) Service
Analog service operational on POES spacecraft
Service available through the life of legacy spacecraft
Low Resolution Picture Transmission (LRPT)
EUMETSAT replaced analog APT with the digital LRPT on Metop-A
LRPT on Metop-A interfered with the sounder, turned off in 2007
LRPT is not available on Metop-B/C
High Resolution Picture Transmission (HRPT)
Digital service operational on POES spacecraft
Advance High Resolution Picture Transmission (AHRPT)
EUMETSAT replaced HRPT with the AHRPT with Metop-A
Metop-A AHRPT service limited operation since 2007
Metop-B AHRPT is full global operation

5. Characteristics APT HRPT AHRPT LRD (TBD) HRD
Receiver Center Frequency (MHz)
137.5 , , 137.1,
1698,
1707,
1702.5
1701.3,
1707
1703
7812
Data Rate
38 Kbps
664 Kbps
3.5 – 4.66 Mbps
15 Mbps
Polarization
Right-hand Circular
Right-hand Circular, Left-hand Circular based on transmitter in use
Bandwidth
30-40 KHz
3.0 MHz
4,5 MHz
4.5 MHz
300 MHz
Modulation
2.4 KHz AM subcarrier on FM carrier
Digital, Split Phase Modulated
QPSK
Format
NOAA APT Format
NOAA HRPT Format
CGMS AHRPT Global Spec
CCSDS
5o elevation and clear sky
N/A
6 db/K
22.70 db/K

6. Service Availability
APT
HRPT
LRPT
AHRPT
LRD
HRD
POES
YES NO
Metop
Meteor M
FY-3
S-NPP
JPSS-1
NO*
JPSS-2
*Development of an LRD service on JPSS-1 was suspended in Currently, JPSS is not planning to implement L-band capabilities on JPSS-2 and beyond and is studying the impacts on users.

7. APT Service Service Transition
APT service WILL BE available until end-of-life of POES spacecraft ,
NOAA’s future polar-orbiting satellites will NOT support an APT or APT-like service,
A likely alternative is the Low Resolution Picture
Transmission (LRPT) service
Available on Roshydromet Meteor-M/MP
series satellites
Use of the MHz frequency band on future NOAA polar-orbiting satellites has not been considered.

8. HRPT Service Equipment
1.1 meter (or larger) parabolic dish
Antenna positioner and control hardware including azimuth and elevation rotators
Feedhorn and quadrature combiner
Low noise amplifier
Wide band receiver
Demodulator
Bit-synchronization board
Personal Computer
Software for image ingest, processing, and display
Cost
Complete system: $50K+ (USD)
Visit any satellite receiver manufacturer
See
NOAASIS/ml/manulst.html for list of vendors
The HRPT service will be continuous through the end-of-life of the POES spacecraft.

9. Summary of JPSS Direct Readout Plan
JPSS Level 1 Requirement document provides the basis for the planned support of the direct readout community with direct broadcast from JPSS-1 and JPSS-2
JPSS-1 will provide HRD (High Rate Data) broadcast containing sensor data
JPSS-2 will provide HRD broadcast and the NOAA JPSS Office will finalize decision to not implement LRD (Low Rate Data) broadcast after studying user impacts.
The JPSS HRD broadcasts (JPSS-1,JPSS-2) will contain all of the sensor data necessary for the field terminal user community to produce a full set of data records (Mission Support Data will be available by internet)
Any potential JPSS-2 LRD broadcast would contain the necessary sensor data for the field terminal user community to produce a prioritized set of data records

10. Summary of JPSS Direct Readout Plan (con’t)
JPSS will not perform encryption of the direct broadcast
JPSS will provide the necessary inputs (for the field terminal user community to produce the data records) on a web portal
Algorithms & Software, Data Processing Framework, Mission Support Data (MSD), Field Terminal Hardware Specifications, Test Products
Users will be notified of any updates to these products
Software and algorithm updates are JPSS configuration control board (CCB) managed
JPSS will provide additional services to the field terminal user community
HRD downlink status (post-pass) & mission status notifications
Help desk for user support (TBD)

11. Summary of JPSS Direct Readout Plan (con’t)
The key differences in the mission architecture from S-NPP are in bolded text below
Missions
Mission Orbit
Launch
Payloads
Mission Communications
Data Latency
Suomi NPP
824 km, 1330 LTAN, Polar Sun-Synchronous, 16 day Repeat Cycle
ULA - Delta II (Vandenberg)
VIIRS, CrIS, ATMS, OMPS-N&L, CERES
SMD: X band, 300 Mbps, Svalbard/Fairbanks
HRD: X band, 15 Mbps
T&C: S band, Svalbard/Fairbanks/TDRSS
140 minutes
JPSS-1
824 km, 1330 LTAN, Polar Sun-Synchronous, 16 day Repeat Cycle, Mission Constellation with S-NPP
ULA - Delta-II (Vandenberg)
VIIRS, CrIS, ATMS, OMPS-N, CERES
SMD: Ka band, 300 Mbps, Svalbard & McMurdo, Fairbanks, Troll
SMD Backup: Ka band, 150 Mbps, TDRSS
T&C: S band, Svalbard/Fairbanks/Troll, TDRSS
80 minutes
JPSS-2 (Future)
824 km, 1330 LTAN, Polar Sun-Synchronous, 16 day Repeat Cycle, Mission Constellation with S-NPP and JPSS-1
TBD (Vandenberg)
VIIRS, CrIS, ATMS, OMPS-N, OMPS-L, CERES Follow-on (objective)
LRD: L band, 4 Mbps (if implemented)
SMD - Stored Mission Data, HRD – High Rate Data, T&C – telemetry and Command,

12. High Rate Data (HRD) Service (con’t)
Registration of X-band Stations
The X-band range (7.75 – 7.90 GHz) is shared between Meteorological Satellites and Point-to- Point Radio Links on ground.
To protect against Potential Interference from Point- to-Point Radio Links it is strongly recommended to register X-band Direct Readout Reception Stations with the national Radio Frequency Authorities;
Before selecting a location for a new X-band Direct Readout Reception Station it is advisable to carry out a Radio Frequency Survey to identify any existing sources of interference.

13. High Rate Data (HRD) Service
Equipment
Cost
X-band only $250K+ (USD)
L-band/X-band $400K+ (USD)
Equipment Information
Visit any satellite receiver manufacturer
See
NOAASIS/ml/manulst.html for list of vendors
The HRD service will be continuous through S-NPP and JPSS-1/2.
A HRD service will be available on several future international polar-orbiting constellations. See

14. Low Rate Data (LRD) Service
Equipment
Equipment Configuration
Similar to Metop AHRPT terminal
Data Format
CGMS Global Specifications for AHRPT
Cost
LRD $100K+ (USD)
An L-band service will not be available on S-NPP and JPSS-1.
EPS-SG has excluded the transmission a (very) reduced amount of data in L-band in parallel, for cost reduction and performance reasons.
The 1695 – 1710 MHz band covering the US states will be shared with commercial broadband services.

15. HRPT Transition Transition to HRD
It will not be possible to upgrade an existing HRPT station to use the S-NPP/JPSS HRD
Old equipment not compatible
Requires a new X-band field terminal
Other systems that don’t meet those requirements
Replacement of demodulator and potentially other components;
Software upgrades to handle S-NPP/JPSS instrument data and other S-NPP/JPSS specific aspects
Station Cost
X-band only $250K+ (USD)
L-band/X-band $400K+ (USD)
System information
Visit any satellite receiver manufacturer
See
/manulst.html for a list of vendors
The meteorological X-band (7.75 – 7.90 GHz) has been selected for EPS-SG direct broadcast. .

16. HRPT Transition Transition to LRD Equipment Upgrades Data Format
Similar to HRPT to Metop AHRPT upgrades
Data Format
CGMS Global Specification for AHRPT
Station Cost
L-band only $100K+ (USD)
L-band/X-band $400K+ (USD)
Equipment Information
Visit any satellite receiver manufacturers
See
manulst.html for a list of vendors

17. Summary
A summary of the spacecraft services and field terminal changes are listed below:
METOP Constellation
LRPT:
APT Service replaced the failed LRPT in the AM orbit;
LRPT is not available on METOP-B/C;
AHRPT: New format requires upgrades to existing HRPT field terminals or purchase new station.
POES Constellation
APT: Frequency change in the – MHz frequency band;
HRPT Service remains unchanged;
APT/HRPT services are available until POES end-of-life.
S-NPP/JPSS Constellation
APT service will not be available;
HRPT will not be available and might be replaced with the LRD broadcast, which would require L-band field terminal upgrades;
LRD will not be available on S-NPP or JPSS-1; a final decision on JPSS-2 will be made after studying the impacts of no LRD on users.
HRD service requires a new X-band field terminal.

18. Summary of Direct Readout Services
Satellite/Series
Time Period
Type of Service (1)
Frequency Band
Nominal Freq Range & Data Rate
NOAA
1983 – 2013+
APT
VHF
137 MHz; 33 Kbps
HRPT (3)
L-band
1698, , or 1707 MHz; 665 Kbps
METOP-A/B
present
AHRPT (3)
1701/1707 MHz; 3.5 Mbps
LRPT
137/139 MHz; 75 Kbps
S-NPP
present
HRD (2)
X-band
7812 MHz; 15 Mbps
JPSS-1
FF-1
A-DCS
1705 MHz; 1.5 Mbps
JPSS-2
LRD (TBD)
1703 MHz (TBD); 3.8 Mbps
1. All services are Digital, except NOAA APT which is Analog Contains Full Resolution Imagery Data 3. L-band Full Resolution Imagery ends with NOAA-19 circa 2013, but continues with METOP-B. Data rate for METOP-C is uncertain.
User impacts of no L-band service on JPSS-2 and beyond are requested.

19. Contact Information
Marlin O. Perkins
Paul Seymour

20. Thank You!