CDAAC-2 architecture

1

COSMIC-2 subsystems

2

1. Clock subsystem• Ground GNSS data• Navigation bits• Weather models• IGS products• Clock products, Orbits, Zenith Tropospheric Delays

2. Data Management System/IO machines• COSMIC-2 level 0 LEO data• Dump schedules• Two Line Elements• COSMIC-2 VC files• Coordination between DPC’s, RTS’s and NSPO/SOCC

3. LEO processing subsystem• Clocks, LEO data• Data products

Output

CDAAC-2 DPC Architecture

cosmic-io

VIP Users(weather centers)

lepus-a/b/c

ground-io(GNSS Clock Subsystem)

cdaac-www

COSMIC and MOO data

leo-a/b/c(RT Processing

Cluster)

c2-io (DMS)

Users

Streaming GNSS data and

bit-grabber data

NOAA weather models

IGS/CODE products

COSMIC-2 LEO data

New for C2

Existing CDAAC

Output

Input

Real-time weather data

Research data

Real-time weather data

Post/Re-processing systems not shown

Clock subsystem

cosmic-io

VIP Users(weather centers)

lepus-a/b/c

ground-io(GNSS Clock Subsystem)

cdaac-www

COSMIC and MOO data

leo-a/b/c(RT Processing

Cluster)

c2-io (DMS)

Users

Streaming GNSS data and

bit-grabber data

NOAA weather models

IGS/CODE products

COSMIC-2 LEO data

New for C2

Existing CDAAC

Output

Input

Real-time weather data

Research data

Real-time weather data

Post/Re-processing systems not shown

Clock subsystem

Clock/Orbits Processing Systems Architecture

- GNSS Receivers- Ntrip Casters

ML: Mesa LabACTIVE/NOT STAGING

- External DPCs- TACC- Brazil

CH: CheyenneACTIVE

Stream-IO-CH Ntrip 5 min files forwardFiles– No Delay

Ntrip Files

Clock/Orbit Product Files

Clock/OrbitProduct Filesw/delay

FID CAST-CHNtrip Stream Caster

GNSS-CHClock Processing

Stream

- External DPCs- TACC- Brazil

Clock / Orbits

SEND

TO ALL LEO

S

- Model Data- CODE Products

GNSS-MLClock Processing

Clock / Orbit

SEND

TO

ALL LEOS

w/delay

Stream-IO-ML Ntrip 5 min files

forwardFiles – Delay

Ntrip Files

FID CAST-MLNtrip Stream Caster

Stream

Ntrip

Files

Ntrip

Files

- External DPCs- TACC- Brazil

Ntrip Files w/delay

Ntrip Files

Clock/Orbits Processing Systems Architecture – Adding POD

- GNSS Receivers- Ntrip Casters

ML: Mesa LabNOT STAGING

- External DPCs- TACC- Brazil

CH: Cheyenne

Stream-IO-CH Ntrip 5 min files forwardFiles– No Delay

Ntrip Files

Clock/Orbit Product Files

Clock/OrbitProduct Filesw/delay

FID CAST-CHNtrip Stream Caster

Stream

- External DPCs- TACC- Brazil

- Model Data- CODE Products

Stream-IO-ML Ntrip 5 min files

forwardFiles – Delay

Ntrip Files

FID CAST-MLNtrip Stream Caster

Stream

Ntrip

Files

Ntrip

Files

- External DPCs- TACC- Brazil

Ntrip

Files w

/delay

POD-MLOrbit

Processing

GNSS-MLClock

Processing

Clock / Orbits

SEND

TO ALL LEO

S

Orbit Files

POD-CHOrbit

Processing

GNSS-CHClock

Processing

Clock / Orbits

SEND

TO ALL LEO

S

Orbit Files

Ntrip Files

NTRIP 5 min. files

Clock/Orbit files forwarded viaCDAAC File Forward Protocol with RSA Signature.

Key COSMIC-2 Clock System Data Flow –High-Level Diagram

Clock Files

DPC’s:US DPC/CDAACTDPC/TACCBRAZIL

FID CAST(Ntrip Stream Caster)

Data S

tream

GNSS Receivers

NTRIP Protocol Stream Data

STREAM- IO(5 min. ntrip files)

FTP Pull

GNSSCLOCK/ORBIT Computation

Bit GrabbersBit Grabbers

StreamFT

P Pu

ll

CDAAC Product File Forward Protocol with RSA Signature.

Model/CODE Data

External DPC’s:TDPC/TACCBRAZIL

IGS CODE Products

Weather ModelProducts

Other NTRIP

Casters

NTRIP 5 min. files

PODORBIT

Computation

Clock files forwarded viaCDAAC File Forward Protocol with RSA Signature.

Key COSMIC-2 Clock System Data Flow – With POD SystemHigh-Level Diagram

Clock Files

Orbit Files

DPC’s:US DPC/CDAACTDPC/TACCBRAZIL

FID CAST(Ntrip Stream Caster)

Data S

tream

GNSS Receivers

NTRIP Protocol Stream Data

STREAM- IO(5 min. ntrip files)

FTP Pull

GNSSCLOCK

Computation

Bit GrabbersBit Grabbers

StreamFT

P Pu

ll

CDAAC Product File Forward Protocol with RSA Signature.

Model/CODE Data

External DPC’s:TDPC/TACCBRAZIL

Orbit files forwarded via CDAAC Product File Forward Protocol with RSA Signature.

IGS CODE Products

Weather ModelProducts

Other NTRIP

Casters

DMS subsystem

cosmic-io

VIP Users(weather centers)

lepus-a/b/c

ground-io(GNSS Clock Subsystem)

cdaac-www

COSMIC and MOO data

leo-a/b/c(RT Processing

Cluster)

c2-io (DMS)

Users

Streaming GNSS data and

bit-grabber data

NOAA weather models

IGS/CODE products

COSMIC-2 LEO data

New for C2

Existing CDAAC

Output

Input

Real-time weather data

Research data

Real-time weather data

Post/Re-processing systems not shown

DMS subsystem

US-DMS/US-DPC Architecture

US –DMS (DMS-c-ML)• FTPS• CDAAC Forward Files• Database • Web Monitoring

- COSMIC 2 data from RTSs- Pass Schedules from NSPO

- Conflict Pass Schedules from IV-B- TLE Files

US –DMS (DMS-b-CH)• FTPS• CDAAC Fwd Files• Database • Web Monitoring

US-DPC (Leo-b-ML)Leo Processing forwardFiles – Delay

US-DPC (Leo-c-ML)Leo

Processing/Staging

TDMS, RTSs, and Other DPC (TACC,

BRAZIL)

COSM

IC 2 data

CH: Cheyenne ML: Mesa Lab

Schedule files

Input level 0

- NOAA/NESDIS- AFWA

FTPS pushsubnet .177

FTPS pushsubnet .28

Data products

US-DMS (DMS-a-CH)• FTPS• CDAAC Fwd Files• Database • Web Monitoring

US-DPC (Leo-a-CH)• Leo Processing

forwardFiles– No Delay

HA/DRBD

COSMIC Schedules

From Primary DMS

Output Data

COSMIC 2 VC Files

Sync COSMIC 2 VC Files w/delay

COSM

IC 2 VC Files

Product Files w/delay

Product Files

Product Files O

nly if Active

COSM

IC 2 VC FilesTDMS, RTSs, and Other DPC (TACC,

BRAZIL)

Product Files Product Files

only if active

COSM

IC 2

Dat

a an

d Sc

hedu

le F

iles

(Onl

y if

Activ

e)

Payload Command Request, Command Report, Operation Status Report, Payload Configuration via Email

VC2 - VC5 Files FTPS Push

VC2 - VC5 Files FTPS Push

Conflict Response Sch FTPS Push Conflict Resp Sch FTPS Pull

Initial USAF Schedule FTPS Push

Backup TT&C Darwin

Commercial RTS

TLE FILESCelestrack

USAF RTS

Last Min Sch Changes Email

TDMSNSPOSOCC

BRAZILRTS

FTP

Pull

FTP Pull

Initial/Final Schedule FTPS Pull

Initial/Final Schedule FTPS Push

VC2 - VC5 Forward Files viaCDAAC File Forward Protocol with RSA Signature. VC2 - VC5 Files

FTPS Push

CMDs, status, Cortex TLM, Cortex status,Schedules,VC0-VC5

TLE FILESCelestrack

VC2 – VC5 FTPS Push

KeyUS DMS External Data Flows

High-Level Description

CDAAC Product File Forward Protocol with RSA Signature.

AFWA

TLE Files

Schedule Files

VC2 - VC5 Files

Product Files

Command & Status Reports via Email

NSPOTT&CRTS

US DMSFTPS Server

DPC’s:US DPC/CDAACTDPC/TACCBRAZIL

NESDIS / GTS