SLR Global Performance Report Card

October 1, 2001 through September 30, 2002

Revised December 18, 2002 to fix some bookkeeping errors

In addition to the report card are the following graphs. (Performance Graphs in GIF format (compressed)). Note: Click on the hyperlinks below to go the appropriate graph. Please don't forget to change your printer page format to landscape if you want to print the charts.

The performance report card is divided into two tables for readability. Table 1 contains a list of performance parameters based on data volume, on-site processing statistics and operational compliance issues. Table 2 contains a list of performance parameters based on orbital analysis results from CSR and MCC weekly LAGEOS reports.

Below are the detailed descriptions of each column in Table 1:

  • Column 1 is the station location name.
  • Column 2 is the monument marker number.
  • Column 3 is the LEO pass total during the past 12 months.
  • Column 4 is the LAGEOS pass total during the past 12 months.
  • Column 5 is the high satellite pass total during the past 12 months.
  • Column 6 is the pass total (i.e., all satellites) during the past 12 months.
  • Column 7 is the LEO NP total during the past 12 months.
  • Column 8 is the LAGEOS NP total during the past 12 months.
  • Column 9 is the high satellite NP total during the past 12 months.
  • Column 10 is the NP total (i.e., all satellites) during the past 12 months.
  • Column 11 is the tracking minutes total (i.e., all satellites) during the past 12 months. This is computed by the summation of the number of normal points multiplied by its bin size in minutes.
  • Column 12 is the average single-shot calibration RMS, in millimeters, during the last quarter.
  • Column 13 is the average single-shot ERS RMS, in millimeters, during the last quarter.
  • Column 14 is the average single-shot LAGEOS RMS, in millimeters, during the last quarter.
  • Column 15 is the median data latency, in hours, to the data centers, during the last quarter.
  • Column 16 is the ILRS normal point format revision number used within the last quarter.
  • Column 17 is a yes/no answer to the question of whether or not a site log has been provided to the central bureau. Site logs will be a replacement for the configuration files.

The first entry in each table is for the performance baseline goal. Note: There are no baseline goals for NP data quantities, single shot RMS's.

Additional Notes: Blanks in any columns mean either that there was no data or that there was insufficient data. Only stations that have supplied data within the last year are included in the table. The table is sorted in descending order by total data volume.

Table 1

Site Information

Data Volume

Data Quality

Operational Compliance
Column 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Location Station Number LEO Totals LAGEOS Tot High Tot Total passes LEO NP Total LAGEOS NP Total High NP Total Total NP Minutes of Track Cal. RMS ERS RMS LAG RMS Data Latency (hours) Format Revision Site logs
Baseline   1000 400 100 1500                 12 1 yes
Yarragadee 7090 5591 1416 1003 8010 96696 16525 9304 122525 105617 4.1 7.5 9.6 2 1 yes
Monument Peak 7110 5824 975 540 7339 96389 10299 4405 111093 73746 5.0 7.0 7.5 3 1 yes
Greenbelt 7105 5377 824 270 6471 97664 8916 2385 108965 61306 4.9 8.8 10.4 3 1 yes
Graz 7839 4740 838 404 5982 93099 11452 3393 107944 68314 3.3 3.8 8.4 13 1 yes
Herstmonceux 7840 3833 1010 444 5287 49918 12760 2374 65052 53135 8.9 11.2 16.4 2 1 yes
Zimmerwald 7810 2999 869 284 4152 44637 11496 2222 58355 49127 21.4 20.9 25.2 1 1 yes
Hartebeesthoek 7501 2532 762 313 3607 34939 9245 3084 47268 46091 4.5 7.0 9.4 3 1 yes
Mt. Stromlo 7849 2473 726 306 3505 28491 6296 1689 36476 31791 3.5 4.8 10.8 3 1 yes
Changchun 7237 2747 482 209 3438 41811 4885 1633 48329 31725 12.6 13.2 16.0 3 1 yes
McDonald 7080 2007 643 454 3104 23607 5058 1677 30342 26052 9.9 12.7 11.6 1 1 yes
Grasse 7835 2657 380 57 3094 56815 4578 414 61807 27828 6.2 8.7 16.9 2 1 yes
Riyadh 7832 1926 744 268 2938 30412 9208 1960 41580 38672 9.3 9.9 14.7 13 0 yes
Wettzell 8834 2181 578 174 2933 30246 4869 756 35871 24055 4.6 11.8 21.3 2 1 yes
San Fernando 7824 2404 349 0 2753 32647 2067 0 34714 14440 7.2 16.4 18.7 2 1 yes
Arequipa 7403 1826 190 0 2016 25955 1715 0 27670 12030 5.3 7.6 7.5 2 1 yes
Haleakala 7210 1339 296 145 1780 16259 2810 1037 20106 16012 5.2 7.7 8.8 2 1 yes
Simosato 7838 1447 218 99 1764 28949 2793 666 32408 18785 17.0 29.3 27.4 1 0 yes
Ajaccio 7848 1549 85   1634 22646 659 0 23305 8444 5.9 9.0 18.9 16 1 yes
Riga 1884 1359 179 0 1538 28420 2256 0 30676 11952 8.8 10.4 12.1 2 1 yes
Potsdam 7836 1262 196 24 1482 18753 1910 105 20768 9653 9.4 11.8 15.2 4 1 yes
Shanghai 7837 1233 144 54 1431 17515 1194 348 19057 9917 10.4 13.1 17.7 2 1 yes
Beijing 7249 1081 124 9 1214 14900 868 61 15829 7044 15.1 118.1 22.5 4 1 yes
Tahiti 7124 658 151 0 809 10274 1632 0 11906 6781 4.4 7.6 10.1 3 1 yes
Metsahovi2 7806 637 102 6 745 12722 1043 21 13786 5787 8.6 14.4 17.9 2 1 yes
Kunming 7820 505 132 55 692 6996 979 272 8247 5808       12 0 yes
Simeiz 1873 555 59 0 614 6424 361 0 6785 2528   54.6   11 0 yes
Grasse (LLR) 7845 0 167 347 514 0 2854 5650 8504 18093 7.2   19.4 1 1 yes
Matera (MLRO) 7941 205 137 57 399 2718 1587 341 4646 5832 1.9   4.6 29 1 yes
Katsively 1893 261 72 10 343 4081 537 46 4664 2669 46.1 52.4 53.0 5 0 yes
Borowiec 7811 232 93 8 333 3522 972 34 4528 3262 13.2 16.9 20.4 1 1 yes
Maidanak 2 1864 120 94 45 259 1222 653 161 2036 2564     84.5 61 1 no
Tateyama 7339 221 13 0 234 660 107 0 767 469           yes
Mendeleevo 1870 221 0 0 221 2124 0 0 2124 687   289.9   18 1 yes
Concepcion 7405 106 79 33 218 1294 683 165 2142 2692 11.4 17.7 23.2 5 1 yes
Maidanak 1 1863 129 69 9 207 1190 519 43 1752 1703     56.1 48 1 no
Lhasa 7356 120 71 2 193 579 807 0 1386 1809           yes
Golosiiv 1824 157 18 0 175 2247 91 0 2338 924 73.9 108.1 127.8 15 1 yes
Cagliari 7548 133 13 0 146 2100 66 0 2166 972           yes
Komsomolsk 1868 95 24 14 133 1194 168 43 1405 967       49 1 no
Lviv 1831 0 14 0 14 0 165 0 165 330 14.2   40.3   1 yes

 

Below are the detailed descriptions of each column in Table 2:

  • Column 1 is the station location name.
  • Column 2 is the monument marker number.
  • Column 3 is the average LAGEOS normal point RMS, in millimeters, during the last quarter, based on CSR Weekly LAGEOS analysis.
  • Column 4 is the measure of short term bias stability, in millimeters, during the last quarter. The short term stability is computed as the standard deviation about the mean of the pass-by-pass range biases from the CSR Weekly LAGEOS analysis. (minimum number of passes in quarter is 10)
  • Column 5 is the measure of long term bias stability, in millimeter, during the past year. The long term stability is the standard deviation of the monthly range bias estimates from the CSR Weekly LAGEOS analysis. A station must have tracked LAGEOS (1,2) in at least 8 of the last 12 months in order to compute this metric.
  • Column 6 is the percentage of LAGEOS normal points that were accepted in CSR weekly LAGEOS analysis.
  • Column 7 is the average LAGEOS normal point RMS, in millimeters, during the last quarter, based on MCC Weekly LAGEOS analysis.
  • Column 8 is the measure of short term bias stability, in millimeters, during the last quarter. The short term stability is computed as the standard deviation about the mean of the pass-by-pass range biases from the MCC Weekly LAGEOS analysis. (minimum number of passes in quarter is 10)
  • Column 9 is the measure of long term bias stability, in millimeter, during the past year. The long term stability is the standard deviation of the monthly range bias estimates from the MCC Weekly LAGEOS analysis. A station must have tracked LAGEOS (1,2) in at least 8 of the last 12 months in order to compute this metric.
  • Column 10 is the percentage of LAGEOS normal points that were accepted in MCC weekly LAGEOS analysis.

The first entry in each table is for the performance baseline goal.

Additional Notes: Blanks in any columns mean either that there was no data or that there was insufficient data. Only stations that have supplied data within the last year are included in the table. The table is sorted in descending order by total data volume.

 

Table 2

Site Information

CSR Orbital Analysis

MCC Orbital Analysis
Column 1 2 3 4 5 6 7 8 9 10
Location Station Number NP RMS Short Term (mm) Long Term (mm) % of good LAGEOS NP NP RMS Short Term (mm) Long Term (mm) % of good LAGEOS NP
Baseline   10.0 20.0 20.0 95.0 10.0 20.0 20.0 95.0
Yarragadee 7090 2.1 10.2 2.2 99.2 2.4 10.8 2.0 97.8
Monument Peak 7110 2.0 12.5 3.2 99.2 2.1 11.9 2.3 97.5
Greenbelt 7105 2.3 10.2 4.4 98.7 2.4 11.1 2.4 96.8
Graz 7839 1.8 9.6 2.0 99.5 2.3 8.1 2.0 98.8
Herstmonceux 7840 2.2 10.4 2.6 99.6 2.8 7.6 1.9 97.8
Grasse 7835 2.0 12.3 3.0 97.7 2.4 10.3 1.8 97.0
Zimmerwald 7810 3.9 8.3 3.0 99.4 4.0 11.4 2.3 89.2
Mt. Stromlo 7849 2.9 12.3 4.8 99.7 2.9 9.8 3.0 97.1
Hartebeesthoek 7501 1.7 14.1 3.5 98.2 2.2 14.9 1.8 98.8
McDonald 7080 2.2 13.3 3.9 99.6 2.4 10.7 3.4 98.6
Changchun 7237 8.2 21.1 12.3 92.9 5.1 27.9 12.4 76.0
Wettzell 8834 3.8 20.0 4.5 96.6 3.6 16.0 5.5 93.0
Riyadh 7832 2.3 15.6 2.1 98.7 2.6 9.2 6.4 98.7
San Fernando 7824 3.8 18.2 6.7 86.4 3.7 19.5 7.8 94.3
Arequipa 7403 2.3 15.7 5.3 92.2 2.4 17.5   98.8
Simosato 7838 5.7 32.1 15.0 66.1 4.3 29.4 11.2 82.9
Haleakala 7210 3.2 15.2 5.6 98.5 3.3 15.1 9.0 94.6
Potsdam 7836 5.0 19.9 9.8 96.2 4.0 9.7 5.3 89.3
Ajaccio 7848 3.6 8.5   98.5 4.5 11.2   97.0
Shanghai 7837 6.7 22.2 8.8 97.5 5.6 13.7 10.0 83.6
Beijing 7249 6.7 24.9 18.4 56.4 4.0 39.6 25.1 79.2
Riga 1884 3.1 23.3 15.9 96.9 3.6 14.1 11.5 96.2
Metsahovi2 7806 5.8 10.9 15.7 96.0 4.8 11.3 10.3 82.0
Tahiti 7124 2.5 12.0 5.7 99.1 2.3 12.0 4.2 97.5
Grasse (LLR) 7845 2.8 10.2 4.8 99.4 3.3 9.4 4.9 96.9
Matera 7941 1.2   3.6          
Borowiec 7811 5.1 14.0 21.6 48.1 4.2 17.3 11.3 88.3
Katsively 1893 12.6 33.5   82.1 7.4 27.5   73.4
Maidanak 2 1864 13.3 27.4   46.3 8.4 28.4   77.5
Concepcion 7405 2.8 15.0   99.1        
Maidanak 1 1863 13.0 19.1   91.9 10.1 46.9   76.9