International Laser Ranging Service

SLR Global Performance Report Card

October 1, 2006 through September 30, 2007

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	8810	1801	1316	11927	173117	23980	12448	209545	157475	4.7	8.4	9.3
Zimmerwald_423 Zimmerwald_846	7810	5872 5778	1199 1209	763 674	7834 7661	94069 90907	15033 16508	4779 3921	113881 111336	80368 78321	11.8 26.9	14.9 22.3	17.9 25.4
San_Juan	7406	5493	1019	1289	7801	86254	12117	7817	106188	87728	5.4	9.3	11.2
Graz	7839	5770	962	695	7427	117346	11174	6073	134593	82756	2.3	3.7	7.8
Mount_Stromlo_2	7825	4797	1188	446	6431	59203	11584	2936	73723	58310	3.2	5.9	8.7
Wettzell	8834	4410	1052	537	5999	48568	8169	2517	59254	45331	5.5	13.9	19.1
Changchun	7237	4404	748	572	5724	50968	6091	3123	60182	42758	15.1	15.5	18.6
Riyadh	7832	3817	997	743	5557	50294	8822	4389	63505	55708	8.6	11.4	21.3
Herstmoncex	7840	3735	903	427	5065	58461	11455	1936	71852	47566	7.2	11.0	13.9
Monument_Peak	7110	3289	684	268	4241	63629	7555	2538	73722	45416	5.2	12.9	15.2
Matera_MLRO	7941	2773	930	278	3981	39130	10349	2484	51963	46342	2.2	6.0	7.0
Concepcion_847 Concepcion_423	7405	1951 33	930 4	237	3118 37	27675 292	12636 34	1890	42201 326	45145 191	7.4	9.3	16.7
San_Fernando	7824	2303	409	20	2732	34763	3234	100	38097	17796	5.1	15.1	15.0
Potsdam_3	7841	1887	324		2211	35665	3836		39501	17108	13.1	16.0	19.7
McDonald	7080	1390	413	321	2124	15679	3631	1293	20603	18280	11.6	11.3	13.2
Hartebeesthoek	7501	1669	338	39	2046	22053	3091	244	25388	14458	5.8	8.0	9.0
Arequipa	7403	1788	193		1981	20136	1371		21507	9342	5.2	7.4	6.5
Beijing	7249	1572	273	121	1966	20838	2555	874	24267	16274	15.0	19.5	20.0
Greenbelt	7105	1603	297	61	1961	35136	3199	383	38718	17642	5.4	9.2	9.4
Simosato	7838	1344	397	1	1742	25928	5829	11	31768	20232
Haleakala	7119	1322	296		1618	20851	3363		24214	13453	4.8	9.6	9.8
Katzively	1893	1252	269	38	1559	20752	2280	210	23242	12309	37.1	43.9	42.5
Shanghai_2	7821	968	73	6	1047	11390	717	39	12146	5489	9.6	16.0	34.0
Maidanak_1	1864	570	167	177	914	6878	1211	781	8870	8147		53.8	70.8
Koganei	7308	496	150	143	789	7896	1587	998	10481	10911	9.9	13.3	15.2
Riga	1884	581	100		681	10221	1013		11234	4733	7.7	7.8	10.7
Borowiec	7811	475	107	8	590	7615	1092	29	8736	4695	13.6		21.4
Simeiz	1873	435	124		559	5034	1090		6124	4087		54.2	49.1
Tanegashim	7358	252	55	40	347	4001	492	358	4851	4036	3.2	4.6	6.1
Papeete	7124	128	41		169	1711	389		2100	1362
Lviv	1831	111	2		113	2045	13		2058	678	16.0
Helwan	7831	51			51	395			395	108	6.0	20.6
NRL	7865	9			9	131			131	10
Kiev	1824	1			1	12			12	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
McDonald	7080	49	81	2	80.4
Matera_MLRO	7941	1	2

 

 

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		DGFI Orbital Analysis				Hitotsubashi Univ. Orbital Analysis				MCC Orbital Analysis				SHAO Orbital Analysis
Station Location	Station Number	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	short term (mm)	long term (mm)	% good LAG. NP	LAG NP RMS (mm)	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
Yarragadee	7090	2.6	29.2	5.4	99.5	1.8	8.6	1.3	100.0	2.1	13.5	4.6	98.7	2.0	13.1	1.9	95.5
Zimmerwald_423 Zimmerwald_846	7810	3.2 4.3	20.2 23.5	3.6 5.5	99.6 99.7	2.8 3.7	7.4 7.3	1.8 3.2	99.9 99.6	2.9 3.4	9.5 10.2	6.8 9.1	97.0 94.6	2.3 3.3	8.8 10.1	2.2 3.1	94.3 94.3
San_Juan	7406	3.4	32.8	5.8	99.4	2.2	29.5	3.9	100.0	3.9	17.5	5.1	100.0	2.8	25.5	5.9	96.1
Graz	7839	1.7	22.7	4.8	99.4	1.1	7.7	1.1	100.0	2.0	9.8	2.9	98.0	2.0	10.9	2.0	96.6
Mount_Stromlo_2	7825	4.3	36.8	7.3	99.5	5.2	14.4	2.4	99.8	4.5	17.6	2.7	92.4	3.9	18.3	2.7	94.7
Wettzell	8834	3.7	29.3	6.8	99.2	3.4	17.1	2.4	99.9	3.2	14.8	5.4	97.4	3.0	18.6	2.2	95.5
Changchun	7237	8.4	33.6	9.3	99.8	7.1	22.5	7.1	99.8	7.8	20.6	10.5	95.1	6.7	27.3	5.2	95.1
Riyadh	7832	3.0	41.7	8.2	99.7	2.5	14.0	3.9	99.7	3.1	17.4	8.2	96.7	2.9	23.5	4.9	96.4
Herstmoncex	7840	2.6	22.1	9.3	99.8	1.8	6.9	5.1	99.9	2.9	8.0	5.1	98.4	1.8	10.4	2.9	95.7
Monument_Peak	7110	2.9	37.5	5.8	98.9	1.8	8.3	4.4	100.0	2.1	12.5	3.8	99.3	1.6	15.8	3.1	96.1
Matera_MLRO	7941	2.6	26.1	11.5	99.8	2.1	10.3	11.8	100.0	2.5	15.3	8.8	98.7	2.5	26.4		97.7
Concepcion_423 Concepcion_847	7405	2.4	34.3	4.6	99.1	1.5	9.8	2.4	100.0	2.6	14.9	5.9	100.0	2.4	25.5	6.3	96.9
San_Fernando	7824	3.5	35.4	16.5	99.1	3.0	12.0	6.4	99.9	3.7	12.7	9.1	99.1	3.4	24.3	8.4	95.6
Potsdam_3	7841	6.1	26.9	13.2	99.3	4.2	16.8	4.2	100.0	3.9	8.4	6.8	92.4
McDonald	7080	3.8	40.2	9.5	100.0	2.5	10.7	4.1	99.7	3.0	13.6	6.5	96.0	2.7	16.6	5.1	95.1
Hartebeesthoek	7501	2.4	33.9	19.6	100.0	1.8	11.2	3.7	100.0	2.2	17.9	3.4	98.2	1.8	21.2	6.1	95.7
Arequipa	7403	3.6	52.4		100.0	2.4	22.0	8.9	100.0	3.2	15.0	10.3	97.9	2.9	27.1		97.4
Beijing	7249	10.8	27.4	26.0	99.4	8.2	25.6	6.3	97.3	7.7	19.9	10.0	97.7	6.5	21.1	6.9	94.7
Greenbelt	7105	2.3	29.4	6.5	99.8	1.9	9.6	5.7	99.8	2.4	13.7	11.9	99.4	2.0	10.3	3.8	95.8
Haleakala	7119	3.1	33.7	5.6	99.8	1.9	14.2	4.0	99.9					4.9	23.1		93.0
Katzively	1893	10.6	32.0	19.8	97.9	9.1	20.7	12.3	98.6	9.7	22.1	13.5	92.2	8.5	22.9	27.8	95.0
Maidanak_1	1864	19.1	41.1	20.7	90.0	22.0	28.3	10.8	92.0	19.9	31.6	12.6	82.5	20.9	32.8		81.6
Koganei	7308	3.0	37.5	13.6	100.0	3.1	19.5	16.9	100.0	4.3	15.8	15.1	100.0	3.8	15.8	18.1	94.7
Riga	1884	5.0	31.1	26.8	100.0	3.5	15.0	13.8	100.0	5.1	17.2	17.3	98.6	4.6	19.0	11.0	94.4
Simeiz	1873					62.6	36.9	36.6	98.8					28.6	23.1	27.1	69.9
Tanegashim	7358	4.5	28.9	26.9	97.4	2.2	39.0	23.6	100.0