International Laser Ranging Service

SLR Global Performance Report Card

October 1, 2002 through September 30, 2003

The performance report card is divided into three tables for readability. Table 1 contains performance parameters based on data volume, on-site processing statistics and operational compliance issues. Table 1 L contains information about Lunar Laser Ranging during the past year. Table 2 contains performance parameters based on various Analysis Centers' rapid orbital analysis results.

Below are the detailed descriptions of each column in Table 1 plots of the columns are linked in this description and 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 total tracking minutes (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 Starlette RMS, in millimeters, during the last quarter.
• Column 14 is the average single-shot LAGEOS RMS, in millimeters, during the last quarter.

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 implies 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 passes.

Table 1

Site Information		Data Volume									Data Quality
Column 1	2	3	4	5	6	7	8	9	10	11	12	13	14
Location	Station Number	LEO pass Tot	LAGEOS pass Tot	High pass Tot	Total passes	LEO NP Total	LAGEOS NP Total	High NP Total	Total NP	Minutes of Data	Cal. RMS	Star RMS	LAG RMS
Baseline		1000	400	100	1500
Yarragadee	7090	8127	1442	868	10437	154955	16401	6879	178235	112352	4.5	8.5	9.2
Monument_Peak	7110	5960	1075	471	7506	109575	11538	4037	125150	75760	5.5	9.3	9.0
Graz	7839	5894	911	522	7327	124022	11688	5013	140723	83362	3.6	5.0	8.9
Riyadh	7832	3912	977	664	5553	60133	9894	4649	74676	62417	7.0	9.7	12.8
Herstmoncex	7840	3845	907	455	5207	55377	10968	2500	68845	50990	8.5	12.7	16.4
Zimmerwald_423 Zimmerwald_846	7810	3926 945	927 239	346 79	5199 1263	63897 15573	12505 3490	2248 454	78650 19517	55827 14020	12.1 25.9	14.9 21.4	17.2 22.9
Greenbelt	7105	4311	558	195	5064	78920	5399	1470	85789	41882	4.6	7.5	10.2
Haleakala	7210	3548	791	434	4773	56533	7796	3001	67330	47463	4.5	8.5	9.1
Changchun	7237	3601	612	441	4654	56452	5949	3378	65779	45803	12.8	13.5	14.9
Hartebeesthoek	7501	3002	887	298	4187	46147	10156	2637	58940	48332	4.6	8.2	9.3
Wettzell	8834	2726	706	202	3634	41196	6902	1180	49278	33234	4.7	7.9	16.0
McDonald	7080	2338	638	369	3345	28550	5490	1426	35466	26941	10.4	10.8	11.3
Arequipa	7403	1617	124		1741	22928	1067		23995	9321	7.1	8.9	8.8
Simosato	7838	1437	212	45	1694	27928	1952	291	30171	13941	18.8	23.2	29.9
Shanghai	7837	1356	184	34	1574	19168	1543	240	20951	10300	7.9	20.5	23.2
Potsdam_1	7836	1364	154	23	1541	21853	1377	113	23343	8818	8.9	13.9	15.6
Mount_Stromlo	7849	1116	240	38	1394	11638	1811	224	13673	8922
Grasse	7835	1165	159		1324	24726	1744		26470	10111
Beijing	7249	1168	98	14	1280	17263	550	87	17900	7020	12.9	90.6	50.2
San_Fernando	7824	1056	205		1261	14751	1323		16074	7481	8.3		14.6
Riga	1884	1147	78		1225	25212	903		26115	7714	9.8	8.9	11.8
Kiev	1824	1122	68		1190	14054	334		14388	4539	72.1	65.9	89.9
Papeete	7124	1086	92	5	1183	16106	685	20	16811	6432	4.2	11.3	9.6
Chania	7830	1047	49		1096	16860	361		17221	5756	6.7	11.2	25.9
Borowiec	7811	902	163	1	1066	15709	1853	2	17564	8154	14.4	16.9	20.2
Matera_MLRO	7941	727	234	96	1057	11324	2633	747	14704	12583	1.7	5.7	6.6
Urumqi	7355	752	107	17	876	12367	1366	85	13818	6680	16.9	26.5	36.8
Metsahovi	7806	780	72	3	855	13031	440	11	13482	4233	10.5	13.6	16.1
Simeiz	1873	608	93	33	734	5539	542	271	6352	3562		52.3	55.7
Potsdam_3	7841	404	88	32	524	8793	1404	289	10486	6300	9.2	6.6	9.2
Maidanak_1	1864	242	171	55	468	3405	1484	233	5122	5180		65.8	74.5
Koganei	7308	298	84	6	388	3835	639	26	4500	2756
Lviv	1831	319	11		330	4879	107		4986	1809	23.5	38.3	43.1
Wuhan_2	7231	145	29		174	2552	310		2862	1395	37.9	21.3	26.5
Maidanak_2	1863	53	103	15	171	700	1020	83	1803	2688
Mendeleevo	1870	103			103	790			790	245
Katzively	1893	72	14	2	88	917	112	7	1036	569
Concepcion_847 Concepcion_423	7405	47 415	23 192	1 50	71 657	729 4313	235 1442	4 199	968 5954	773 5502	23.2 7.6	10.8 25.1	14.9 14.1
Beijing	7357	21	25	1	47	282	340	3	625	793	10.0	11.6	20.9
Kunming	7820	24			24	332			332	121
Komsomolsk	1868	11	8	3	22	94	66	15	175	241		83.2	78.6

 

 

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

• the first column, L1, is the station location name.
• the second column, L2, is the monument marker number.
• the third column, L3, is the number of nights during the past 12 months in which there were Lunar ranging measurements
• the fourth column, L4, is the number of Lunar Laser Ranging normal points during the past 12 months
• the fifth column, L5, is the number of Lunar Laser Ranging normal points during the past 3 months
• the sixth column, L6, is the average Lunar Laser Ranging normal points rms 3 months in mm

 

Table 1 L

Site Information		Data Information
Column L1	L2	L3	L4	L5	L6
Location	Station Number	num nights tracking last 12 mon	num npt last 12 mon	num npts last 3 mon	ave npt rms last 3 mon
Grasse_LLR	7845	51	193	38	41.6
McDonald	7080	48	77	10	59.9
Matera_MLRO	7941	1	5

 

 

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

• the first column is the station location name.
• the second column is the monument marker number.
• following columns are in grouped by analysis center with four columns for each
  • the first AC column is the average LAGEOS normal point RMS, in millimeters, during the last quarter
  • the second AC column 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 (minimum number of passes in quarter is 10)
  • the third AC column 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. A station must have tracked LAGEOS (1,2) in at least 8 of the last 12 months in order to compute this metric.
  • the fourth AC column is the percentage of LAGEOS normal points that were accepted in the analysis.

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

Additional Notes: Blanks in any columns implies 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				Delft Orbital Analysis				NICT Orbital Analysis				MCC Orbital Analysis				SHAO Orbital Analysis
Station Location	Station Number	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP
Baseline		10.0	20.0	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95
Yarragadee	7090	2.0	13.5	1.5	99.2	2.0	15.2	2.0	99.9	1.8	20.5	3.5	100.0	2.2	15.8	2.1	90.9	1.8	15.1	2.2	96.0
Monument_Peak	7110	2.0	13.8	2.1	99.1	1.6	14.5	7.3	99.8	1.7	18.6	2.8	100.0	1.8	11.7	4.1	93.9	1.4	14.6	2.6	95.4
Graz	7839	1.9	11.3	3.5	99.6	1.8	7.9	8.6	100.0	1.5	13.2	2.8	100.0	1.9	8.7	1.4	93.0	1.6	12.9	2.3	95.8
Riyadh	7832	2.0	21.0	5.0	99.6	2.1	12.1	3.2	99.3	1.7	23.5	6.8	99.9	2.1	15.1	6.0	93.6	2.1	18.7	5.7	97.2
Zimmerwald_423 Zimmerwald_846	7810	2.9	10.5	3.4	99.5	2.9 3.8	11.8 14.4	4.2	100.0 100.0	2.5 3.2	13.4 14.0	2.9	100.0 100.0	37.3	44.3	10.5	86.7	2.3	13.5	4.8	95.8
Herstmonceux	7840	2.2	11.8	2.1	99.7	2.3	8.3	2.5	100.0	1.9	11.2	2.2	100.0	2.1	7.1	1.0	93.2	1.9	13.8	2.2	95.2
Greenbelt	7105	2.3	12.8	5.3	99.6	2.0	16.1	7.6	99.5	2.2	19.1	3.5	99.8	1.9	12.4	4.6	90.8	1.6	13.5	4.9	95.4
Haleakala	7210	3.3	18.3	4.5	98.9	3.1	17.5	8.5	100.0	2.9	25.2	5.2	99.9	2.8	23.6	8.6	86.9	2.5	14.2	4.1	94.1
Changchun	7237	6.8	14.2	5.9	99.3	7.1	25.5	7.3	100.0	6.3	23.8	5.1	100.0	4.6	17.2	18.5	79.5	6.0	19.9	6.7	95.4
Hartebeesthoek	7501	1.6	16.2	3.8	98.9	1.4	10.5	5.4	100.0	1.2	22.9	5.4	100.0	1.7	17.4	3.1	91.5	1.5	24.1	7.0	97.0
Wettzell	8834	2.7	21.2	5.0	99.4	2.6	14.9	20.7	100.0	2.3	15.0	4.5	100.0	2.3	13.6	4.2	88.8	2.1	17.2	6.3	95.2
McDonald	7080	1.9	14.4	2.4	99.4	1.6	14.7	4.9	99.7	1.8	16.8	3.8	100.0	1.8	11.3	3.8	90.6	1.7	14.7	4.4	96.5
Arequipa	7403	3.4	24.4	14.5	100.0	3.0	15.3	7.4	100.0	2.9	25.2	7.7	100.0	3.3	34.3	34.9	85.0	3.2	26.3		98.7
Simosato	7838	6.5	13.6	8.9	96.5	9.5	37.5	18.9	99.3	7.5	52.0	25.6	99.5	3.9	42.8	12.7	64.4
Potsdam_1	7836	3.9	33.5	14.2	99.2	5.1	14.0	4.8	100.0	4.7	8.1	5.4	100.0	3.3	7.0	6.1	88.1
Shanghai	7837	8.6	23.0	9.1	99.2	9.5	20.2	19.4	100.0	7.5	24.0	9.2	100.0	5.8	18.0	14.4	78.5	5.6	10.5	5.6	94.6
Riga	1884	3.2	21.9	19.2	99.5	3.0	14.4	15.5	100.0	2.7	18.3	10.6	100.0	2.7	16.8	8.6	88.4	2.5	18.8	10.7	93.6
Papeete	7124	2.8	16.6	10.9	99.4	1.9	17.1	12.2	99.4	2.0	17.7	11.3	99.4	1.6	18.1	8.1	88.8	1.7	18.6		95.4
Matera_MLRO	7941	1.8	11.0		97.2	1.4	14.4		96.3	2.1	16.1		97.2	1.8	9.2		90.6
Borowiec	7811	5.8	27.2	18.6	100.0	5.3	12.7	32.6	100.0	5.1	15.3	22.3	100.0	3.5	11.1	11.0	83.7	4.3	14.0	13.1	94.3
Urumqi	7355	8.5	20.8		97.1	10.0	20.5		94.6	10.8	40.7		99.1					9.2	26.2		97.3
Metsahovi	7806	3.9	18.8	6.5	100.0	3.3	22.1	11.5	100.0	4.1	20.2	10.0	100.0	3.9	14.4		89.9	3.6	14.8		95.0
Simeiz	1873					30.8	47.2		95.7	31.4	56.5		100.0	10.3	33.6		74.0
Concepcion_423 Concepcion_847	7405	2.1	21.2	12.7	78.7	1.2	20.9	8.6	100.0	1.6 6.1	20.0 27.5	6.6	100.0 100.0
Potsdam_3	7841	2.6	10.4	6.4	98.8	3.2	2.4	3.5	98.7	3.5	18.3	6.5	100.0
Maidanak_1	1864	11.9	17.1	15.7	92.1	13.4	16.1	38.2	100.0	10.9	20.2	48.0	100.0	7.6	38.7	30.8	67.6
Beijing	7357					9.3	22.1		100.0