=============================================================================
|                     IGS ANALYSIS STRATEGY SUMMARY                         |
=============================================================================
| Analysis Center   | [center name]                                         |
|                   | [ACN = Analysis Center code]                          |
|                   | [address]                                             |
|                   | [group phone number]                                  |
|                   | [group fax number]                                    |
|---------------------------------------------------------------------------|
| Contact people    | [name 1] [e-mail 1] [phone 1]                         |
|                   | [name 2] [e-mail 2] [phone 2]                         |
|                   | [name 3] [e-mail 3] [phone 3]                         |
|---------------------------------------------------------------------------|
| Software used     | [name/version], [developer], [YYYY-MM-DD implemented] |
|---------------------------------------------------------------------------|
| IGS products      | ACNwwwwn.sp3 daily orbit files                        | 
| generated for     | ACNwwww?.erp daily/weekly ERP file                    | 
| GPS Week wwww     | ACNwwwwn.clk daily station and SV clock files         | 
| day of Week n     | ACNwwww?.sum daily/weekly summary file                |
| (n=0,1,...,6)     | ACNwwww?.snx daily/weekly SINEX file                  |
|                   | ACNwwwwn.tro daily tropo files                        |
|                   | [ACN  = Analysis Center code]                         |
|                   | [wwww = GPS week number]                              |
|                   | [n    = GPS day of week number]                       |
|---------------------------------------------------------------------------|
| Preparation date  | YYYY-MM-DD                                            |
|---------------------------------------------------------------------------|
| Modification dates| YYYY-MM-DD:  ... [summary of changes]                 |
|                   | YYYY-MM-DD: ... [summary of changes]                  |
|---------------------------------------------------------------------------|
| Effective date    | YYYY-MM-DD                                            |
| for data analysis |                                                       |
=============================================================================

=============================================================================
|                     MEASUREMENT MODELS                                    |
|---------------------------------------------------------------------------|
| Preprocessing    |                                                        |
|---------------------------------------------------------------------------|
| Basic observable |                                                        |
|                  |--------------------------------------------------------|
|                  | elevation angle cutoff:   X degrees                    |
|                  | sampling rate:            X minutes                    |
|                  | weighting: carrier phase= X cm (nominally)             |
|                  |            pseudorange=   X cm (nominally)             |
|                  | deweighting:                                           |  
|                  | smoothing:                                             |
|                  | code biases:                                           |
|---------------------------------------------------------------------------|
| Modeled          |                                                        |
| observable       |                                                        |
|---------------------------------------------------------------------------|
|*Satellite center |                                                        |
| of mass          |                                                        |
| offsets          |                                                        |
|---------------------------------------------------------------------------|
|*Satellite phase  |                                                        |
| center           |                                                        |
| corrections      |                                                        |
|---------------------------------------------------------------------------|
|*Satellite clock  |                                                        |
| corrections      |                                                        |
|---------------------------------------------------------------------------|
| GPS attitude     |                                                        |
| model            |                                                        |
|---------------------------------------------------------------------------|
|*RHC phase        |                                                        |
| rotation corr.   |                                                        |
|---------------------------------------------------------------------------|
|*Ground antenna   |                                                        |
| phase center     |                                                        |
| offsets and      |                                                        |
| corrections      |                                                        |
|---------------------------------------------------------------------------|
|*Antenna radome   |                                                        |
| calibration      |                                                        |
|---------------------------------------------------------------------------|
|*Marker -> antenna|                                                        |
| ARP eccentricity |                                                        |
|---------------------------------------------------------------------------|
| Troposphere      | met data input:                                        |
| a priori model   |--------------------------------------------------------|
|                  | zenith delay:                                          |
|                  |--------------------------------------------------------|
|                  | mapping function:                                      |
|---------------------------------------------------------------------------|
|*Ionosphere       | 1st order effect:                                      |
|                  |--------------------------------------------------------|
|                  | 2nd order effect:                                      |
|                  |--------------------------------------------------------|
|                  | other effects:                                         |
|---------------------------------------------------------------------------|
|*Tidal            | solid Earth tide:                                      |
| displacements    |--------------------------------------------------------|
|                  | permanent tide:                                        |
|                  |--------------------------------------------------------|
|                  | solid Earth pole tide:                                 |
|                  |--------------------------------------------------------|
|                  | oceanic pole tide:                                     |
|                  |--------------------------------------------------------|
|                  | ocean tide loading:                                    |
|                  |--------------------------------------------------------|
|                  | ocean tide coeffs:                                     |
|                  |--------------------------------------------------------|
|                  | ocean tide geocenter:                                  |
|                  |--------------------------------------------------------|
|                  | atmosphere tides:                                      |
|---------------------------------------------------------------------------|
| Non-tidal        | atmospheric pressure:                                  |
| loadings         |--------------------------------------------------------|
|                  | ocean bottom pressure:                                 |
|                  |--------------------------------------------------------|
|                  | surface hydrology:                                     |
|                  |--------------------------------------------------------|
|                  | other effects:                                         |
|---------------------------------------------------------------------------|
|*Earth orientation| ocean tidal:                                           |
| variations       |--------------------------------------------------------|
|                  | atmosphere tidal:                                      |
|                  |--------------------------------------------------------|
|                  | high-frequency nutation:                               |
=============================================================================

=============================================================================
|                       REFERENCE FRAMES                                    |
|---------------------------------------------------------------------------|
| Time argument    |                                                        |
|---------------------------------------------------------------------------|
| Inertial         |                                                        |
|---------------------------------------------------------------------------|
| Terrestrial      |                                                        |
|---------------------------------------------------------------------------|
| Tracking         |                                                        |
| network          |                                                        |
|---------------------------------------------------------------------------|
| Interconnection  |*precession:                                            |
|                  |--------------------------------------------------------|
|                  |*nutation:                                              |
|                  |--------------------------------------------------------|
|                  | a priori EOPs:                                         |
=============================================================================

=============================================================================
|                           ORBIT MODELS                                    |
|---------------------------------------------------------------------------|
| Geopotential     | NNNNN to degree and order XX                           |
| (static)         | time-variable coefficients:                            |
|                  |--------------------------------------------------------|
|                  | GM = XXXXXX.XXXX km**3/sec**2                          |
|                  |--------------------------------------------------------|
|                  | AE = XXXX.XXX km                                       |
|---------------------------------------------------------------------------|
|*Tidal variations | solid earth tides:                                     |
| in geopotential  |--------------------------------------------------------|
|                  | ocean tides: 
|                  |--------------------------------------------------------|
|                  | solid Earth pole tide:                                 |
|                  |--------------------------------------------------------|
|                  | oceanic pole tide:                                     |
|---------------------------------------------------------------------------|
| Third-body       | Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn       |
| forces           | (regarded as point masses)                             |
|                  |--------------------------------------------------------|
|                  | ephemeris:                                             |
|                  |--------------------------------------------------------|
|                  | GM Sun                                  km**3/sec**2   |
|                  | Moon-Earth mass ratio                                  |
|                  | Sun-Mercury mass ratio                                 |
|                  | Sun-Venus mass ratio                                   |
|                  | Sun-Mars mass ratio                                    |
|                  | Sun-Jupiter mass ratio                                 |
|                  | Sun-Saturn mass ratio                                  |
|---------------------------------------------------------------------------|
| Solar radiation  | a priori:                                              |
| pressure model   |--------------------------------------------------------|
|                  | Earth shadow model:                                    |
|                  |--------------------------------------------------------|
|                  | Earth albedo:                                          |
|                  |--------------------------------------------------------|
|                  | Moon shadow:                                           |
|                  |--------------------------------------------------------|
|                  | satellite attitude:                                    |
|---------------------------------------------------------------------------|
|*Relativitic      | dynamical correction:                                  |
| effects          |--------------------------------------------------------|
|                  | gravitational time delay:                              |
|---------------------------------------------------------------------------|
| Numerical        | method:                                                |
| integration      |--------------------------------------------------------|
|                  | integration step:                                      |
|                  |--------------------------------------------------------|
|                  | starter procedure:                                     |
|                  |--------------------------------------------------------|
|                  | arc length:                                            |
=============================================================================

=============================================================================
|                    ESTIMATED PARAMETERS (APRIORI VALUES AND CONSTRAINTS)  |
|---------------------------------------------------------------------------|
| Adjustment       |                                                        |
| method           |                                                        |
|---------------------------------------------------------------------------|
| Station          |                                                        |
| coordinates      |                                                        |
|---------------------------------------------------------------------------|
| Satellite clocks |                                                        |
|---------------------------------------------------------------------------|
| Receiver clocks  |                                                        |
|---------------------------------------------------------------------------|
| Orbits           |                                                        |
|---------------------------------------------------------------------------|
| Satellite        |                                                        |
| attitude         |                                                        |
|---------------------------------------------------------------------------|
| Troposphere      | zenith delay:                                          |
|                  |--------------------------------------------------------|
|                  | mapping fuction:                                       |
|                  |--------------------------------------------------------|
|                  | zenith delay epochs:                                   |
|                  |--------------------------------------------------------|
|                  | gradients:                                             |
|---------------------------------------------------------------------------|
| Ionospheric      |                                                        |
| corrections      |                                                        |
|---------------------------------------------------------------------------|
| Ambiguities      |                                                        |
|---------------------------------------------------------------------------|
|*Earth orientation|                                                        |
| parameters (EOP) |                                                        |
|---------------------------------------------------------------------------|
| Other parameters |                                                        |
=============================================================================

=============================================================================
|                    REFERENCES                                             |
|---------------------------------------------------------------------------|
|                                                                           |
=============================================================================
|* = strong consistency with IERS/IGS conventions is especially important   |
|    for these items                                                        |
=============================================================================