International Laser Ranging Service

SLR Global Performance Report Card

July 1, 2011 through June 30, 2012

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	10989	2012	5378	18379	183567	23033	24881	231481	186104	5.8	7.9	9.4
Zimmerwald_532	7810	8319	1513	5279	15111	143851	22395	28935	195181	194278	4.4	8.7	11.1
Graz	7839	4475	751	2794	8020	74509	6130	16606	97245	91453	2.5	3.9	5.1
Greenbelt	7105	6180	835	991	8006	112770	7587	4403	124760	72205	8.3	8.8	10.1
Matera_MLRO	7941	4633	1482	1854	7969	59643	15194	10887	85724	93130	1.3	3.2	5.1
Changchun	7237	4518	614	1862	6994	41337	3587	7902	52826	40257	7.6	11.4	13.9
Mount_Stromlo_2	7825	4851	800	457	6108	60177	6630	2224	69031	52618	3.4	5.0	6.5
Herstmonceux	7840	3403	740	1903	6046	48071	8255	6548	62874	56839	6.0	10.3	10.4
Wettzell	8834	4080	770	1131	5981	41210	5325	5446	51981	46268	6.1	11.5	14.8
San_Juan	7406	3659	771	1272	5702	78734	14179	13862	106775	91744	5.6	10.5	9.0
Monument_Peak	7110	3298	774	732	4804	57803	7894	3560	69257	52973	7.5	11.7	13.8
Hartebeesthoek	7501	3003	814	586	4403	43694	8994	3524	56212	50226	5.8	11.0	11.8
San_Fernando	7824	2989	260	19	3268	35001	1185	50	36236	18875	6.0	11.9	16.9
Potsdam_3	7841	2643	395	159	3197	44607	4253	1257	50117	29188	7.6	12.8	14.9
Arequipa	7403	2500	317		2817	33318	2309		35627	21347	5.2	12.0	9.9
Haleakala	7119	2188	615		2803	36001	6863		42864	32948	4.2	8.5	12.1
Concepcion_847	7405	1468	660	362	2490	15127	6947	2280	24354	30848	6.1	14.7	16.3
Katzively	1893	1565	318	303	2186	23393	2787	2349	28529	22146	33.8	69.6	37.3
Grasse_MEO	7845	862	498	630	1990	26770	5883	2883	35536	28631	11.7	16.8	17.6
Simosato	7838	1091	423	186	1700	30252	10574	1969	42795	43808	5.5	8.1	10.0
McDonald	7080	917	411	213	1541	9256	3262	847	13365	14127	7.1	12.6	13.2
Shanghai_2	7821	918	188	370	1476	8879	1008	1769	11656	11506	5.8	10.8	12.2
Riga	1884	1227	149	2	1378	20719	1221	14	21954	11265	10.8	13.0	13.3
Simeiz	1873	943	302	65	1310	11895	2237	399	14531	10134		51.0	47.1
Altay	1879	231	352	726	1309	2017	2218	2461	6696	11377			12.8
Kiev	1824	1000	198	77	1275	7405	906	226	8537	6154	15.5	13.2	27.3
Koganei	7308	445	192	365	1002	5622	1428	2784	9834	13306	11.0	11.0	14.6
Papeete	7124	622	224	46	892	10726	2710	207	13643	11206	6.3	8.4	9.2
Komsomolsk	1868	38	153	362	553	265	925	1010	2200	4322			12.7
Beijing	7249	391	71	76	538	8315	1028	796	10139	8543	7.2	12.4	16.4
Badary	1890	316	80	41	437	5323	872	189	6384	5754		40.1	42.0
Zelenchukskya	1889	94	64	159	317	1391	434	702	2527	2416		21.7	26.0
Tanegashima	7358	241	13	23	277	2445	60	397	2902	2975	2.2	19.5	17.5
Arkhyz	1886	70	80	95	245	774	831	462	2067	4295		15.6	15.3
Svetloe	1888	94	57	13	164	1020	345	43	1408	1652			35.8
Baikonur	1887	85	78		163	623	662		1285	2609		13.2	12.8
FTLRS_Tahiti	7822	69	16		85	1317	141		1458	726
Helwan	7831	2			2	12			12	6
Koganei	7328	1			1	5			5	1

 

 

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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	11	25	2	31.2
Grasse_MEO	7845	1	7
Matera_MLRO	7941	2	4

 

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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 millimeters, 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				JCET 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	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	10.0	20.0	20.0	95
Yarragadee	7090	3.5	19.9	2.5	100.0	1.7	8.1	1.2	100.0	2.9	11.2	3.2	99.0	2.3	14.3	2.0	98.7	1.7	11.0	2.8	94.0
Zimmerwald_532	7810	2.7	16.2	3.1	99.9	1.3	6.2	1.5	99.9	1.8	9.4	3.9	99.8	2.2	11.8	2.7	98.1	1.3	8.8	2.4	96.2
Graz	7839	2.1	13.8	2.9	99.7	1.1	6.2	1.8	100.0	1.2	8.1	6.2	99.5	1.7	12.6	2.6	98.5	0.8	7.6	6.3	96.5
Greenbelt	7105	4.5	21.9	3.3	99.2	2.4	8.9	2.6	99.6	3.3	12.8	3.6	98.6	3.1	18.2	5.1	96.7	2.3	14.6	4.0	93.0
Matera_MLRO	7941	3.0	17.3	3.3	99.8	1.4	9.3	1.0	99.6	2.1	14.1	5.2	99.6	2.1	16.5	4.2	99.3	2.4	29.6	3.0	98.6
Changchun	7237	4.8	30.0	12.4	100.0	2.6	26.6	10.1	99.2	2.7	28.6	8.3	96.2	4.1	33.9	15.4	94.9	1.8	31.0	16.0	97.1
Mount_Stromlo_2	7825	4.3	23.3	3.7	99.4	2.5	12.3	3.4	100.0	3.2	15.2	12.0	98.1	3.3	16.5	5.3	97.8	2.2	13.0	6.8	95.5
Herstmonceux	7840	2.9	12.0	2.0	100.0	1.7	6.8	1.5	100.0	2.1	11.9	4.6	99.9	2.6	9.5	3.0	97.2	1.4	11.4	3.4	95.2
Wettzell	8834	2.9	15.7	5.0	100.0	2.0	9.0	3.3	100.0	2.1	11.0	4.8	100.0	2.0	11.0	4.2	98.8	1.1	13.6	2.5	94.8
San_Juan	7406	8.7	33.2	14.2	99.9	4.7	31.6	13.5	99.0	5.3	33.9	10.6	90.6	4.9	23.8	7.3	96.3	4.8	28.4	9.0	93.8
Monument_Peak	7110	4.9	20.9	10.1	99.9	2.1	12.9	21.9	100.0	4.1	22.0	5.3	98.1	2.9	18.2	15.1	97.1	2.5	14.9	4.7	93.9
Hartebeesthoek	7501	3.9	21.0	16.7	99.8	1.9	15.7	16.2	100.0	3.1	16.4	16.1	99.0	2.4	21.8	14.1	98.7	2.2	18.3	23.0	94.8
Potsdam_3	7841	3.9	16.5	5.2	99.9	2.2	7.6	4.2	99.8	3.4	9.9	4.7	99.3	2.5	12.7	5.1	96.5
San_Fernando	7824	6.3	24.0	11.5	100.0	5.4	14.1	8.1	100.0	4.0	18.3	10.6	97.6	4.3	19.0	11.2	98.4
Arequipa	7403	8.8	36.9	10.6	99.7	2.2	24.1		99.7	4.2	21.8		97.9	3.0	16.4		97.1	1.7	15.3	7.6	92.7
Haleakala	7119	4.0	25.1	4.0	99.6	2.6	12.8	3.1	99.4	3.2	11.9	4.6	97.9	3.8	28.7	7.8	98.2	7.0	29.8	6.4	91.9
Katzively	1893	13.1	31.7	8.4	98.4	8.9	22.7	7.2	96.0	6.5	12.1	6.3	82.1	8.6	16.0	11.5	89.1	9.5	19.5	7.9	97.4
Grasse_MEO	7845	4.2	18.3	7.4	100.0	2.8	13.0	16.9	100.0	3.9	12.3	8.3	99.4	3.0	15.3	9.9	97.5	2.2	11.7	4.9	95.7
Simosato	7838	7.2	23.7	15.2	99.9	3.0	13.6	12.3	99.5	5.1	17.2	13.2	97.7	5.1	17.7	12.3	99.5	4.0	15.9	9.9	94.0
McDonald	7080	4.1	19.6	5.7	99.4	2.9	10.3	3.8	99.7	3.2	9.0	4.3	95.5	3.3	18.0	9.3	96.2	2.3	17.0	6.2	94.0
Shanghai_2	7821	2.9	32.1	17.0	95.2	1.4	14.5	13.2	98.8	1.4	16.7	12.1	87.5	4.8	19.5	16.3	100.0	1.4	19.0	14.0	86.7
Simeiz	1873	59.1	41.0	15.5	88.8	72.2	44.4	15.0	97.8					169.9	34.7	26.5	79.3	25.8	29.9	22.0	64.2
Kiev	1824	11.8	47.4	15.2	89.7	13.4	31.0	13.2	93.0	3.7	25.9	13.6	55.0	18.8	17.2	13.6	82.1
Altay	1879	18.1	51.4	61.8	94.6									6.2	48.7	24.7	96.6
Papeete	7124	3.6	19.8	5.6	99.8	1.8	12.6	2.9	100.0	3.0	17.2	6.7	99.7	2.8	23.8	5.9	100.0	4.5	26.0	16.8	97.3
Beijing	7249	6.5	26.5		99.7					3.7	30.2		90.4	6.1	25.6		100.0
Komsomolsk	1868	20.4	42.8	34.1	95.8									12.8	33.8	11.3	87.5
Baikonur	1887	12.5	40.6		99.8					5.7	32.7		83.9	6.7	27.0	7.9	92.9
Concepcion_847	7405	3.5	28.6		100.0	1.7	37.3	4.0	100.0	4.6	27.9		99.0	2.3	29.7	7.0	100.0