International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2012 through March 31, 2013

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	7794	1534	4599	13927	136906	18974	22595	178475	131617
Zimmerwald_532	7810	4677	793	2816	8286	78978	11873	12696	103547	75066
Mount_Stromlo_2	7825	4755	930	584	6269	76872	9895	3205	89972	75994
Changchun	7237	3641	358	2156	6155	32671	2070	7139	41880	23413
Matera_MLRO	7941	3250	1091	1607	5948	41667	11344	8115	61126	60008
Wettzell	8834	3850	687	1329	5866	41587	5120	6326	53033	40682
Greenbelt	7105	3663	535	596	4794	65338	4998	2579	72915	48247
Graz	7839	2677	431	1656	4764	49585	3780	10720	64085	41239
San_Juan	7406	2632	752	1116	4500	62582	12318	10591	85491	70628
Herstmonceux	7840	2241	476	1038	3755	35426	5834	4046	45306	35986
Hartebeesthoek	7501	2482	666	517	3665	36470	7057	2734	46261	40728
Arequipa	7403	3042	444		3486	40576	3288		43864	33975
Monument_Peak	7110	2364	564	486	3414	41088	5034	1659	47781	36250
Potsdam_3	7841	2166	298	219	2683	36479	3078	1859	41416	27757
Haleakala	7119	1776	556		2332	30665	5596		36261	34136
San_Fernando	7824	1964	94	4	2062	25206	414	11	25631	14789
Katzively	1893	1549	178	250	1977	37909	2707	3359	43975	30092
Grasse_MEO	7845	761	340	614	1715	26165	4173	2407	32745	22504	7.2
Concepcion_847	7405	1102	391	173	1666	11727	4566	1121	17414	22302
Shanghai_2	7821	789	101	488	1378	6192	446	1803	8441	5062
Simosato	7838	845	327	97	1269	15875	5741	680	22296	28718
Simeiz	1873	961	197	58	1216	11443	1391	353	13187	10628
Baikonur	1887	286	413	482	1181	2768	2789	2141	7698	11135
McDonald	7080	729	237	163	1129	7087	1717	630	9434	9493
Beijing	7249	706	93	143	942	11612	1041	1111	13764	10307
Papeete	7124	413	138	168	719	6458	1380	697	8535	8012
Altay	1879	174	125	391	690	2109	908	1283	4300	4263
Kiev	1824	600	64	22	686	5101	338	83	5522	3793
Badary	1890	442	92	49	583	7156	994	290	8440	7559
Zelenchukskya	1889	156	83	322	561	2223	745	1257	4225	3874
Arkhyz	1886	271	87	193	551	2813	559	975	4347	3571
Koganei	7308	286	81	164	531	3720	611	950	5281	4185
Riga	1884	322	14		336	4936	78		5014	2841
Komsomolsk	1868	32	58	170	260	265	368	450	1083	1347
Svetloe	1888	110	50	7	167	1136	226	24	1386	1358
Tanegashima	7358	53	5	3	61	491	24	15	530	322

 

 

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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
Matera_MLRO	7941	16	31
McDonald	7080	6	13

 

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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	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95
Yarragadee	7090	3.7	14.7	3.5	100.0	2.1	7.0	3.4	100.0	2.9	15.3	4.3	99.7	2.6	15.0	3.0	98.3	1.9	12.3	2.4	91.7
Zimmerwald_532	7810	3.4	11.5	7.9	100.0	1.8	7.0	2.8	99.9	2.0	11.9	7.8	99.4	2.3	11.2	2.2	97.9	1.2	10.3	2.2	93.5
Mount_Stromlo_2	7825	4.2	15.1	4.8	100.0	3.2	7.7	1.0	100.0	3.4	14.4	3.5	99.4	3.7	13.6	4.3	95.0	2.6	13.1	4.0	93.4
Changchun	7237	5.0	25.0	12.0	99.8	4.4	24.7	11.0	99.9	3.0	24.6	9.8	97.6	3.5	30.3	16.9	96.1	4.1	33.5	22.2	85.9
Matera_MLRO	7941	2.7	13.6	5.9	100.0	1.4	6.7	3.5	100.0	2.4	12.6	5.2	100.0	2.0	15.0	2.8	99.7	2.7	31.7	3.5	97.0
Wettzell	8834	2.9	13.6	5.2	100.0	1.9	6.7	2.7	100.0	2.5	13.2	4.5	100.0	2.5	15.3	3.5	97.6	2.5	15.0	4.6	94.4
Greenbelt	7105	3.6	13.6	4.1	99.8	2.1	7.8	2.2	99.8	3.0	11.9	2.8	99.3	2.4	16.5	5.7	97.4	1.6	9.6	3.6	90.5
Graz	7839	2.1	9.6	4.5	100.0	0.9	4.8	1.5	100.0	1.2	9.8	3.1	91.6	1.7	8.5	3.4	95.3	1.2	9.2	1.5	95.0
San_Juan	7406	13.7	34.8	6.9	98.3	4.3	24.9	6.3	98.0	6.2	33.8	6.1	85.1	4.9	17.6	9.2	96.8	4.3	26.4	7.5	90.9
Herstmonceux	7840	3.1	10.6	3.3	100.0	1.9	5.3	1.3	100.0	2.0	9.8	3.3	100.0	2.6	7.5	2.5	96.3	1.5	10.1	3.1	94.7
Hartebeesthoek	7501	4.3	17.4	5.0	99.8	2.3	7.7	3.8	99.9	3.1	16.6	5.5	98.7	2.8	20.7	7.1	97.3	3.1	20.6	6.1	92.1
Monument_Peak	7110	5.7	19.2	5.7	99.8	3.1	12.4	2.9	99.9	4.7	18.3	4.6	98.8	3.3	15.5	4.4	95.7	2.6	16.0	6.7	89.5
Potsdam_3	7841	3.8	11.3	5.9	99.8	2.1	7.3	2.9	100.0	3.0	11.6	5.1	99.8	2.7	10.7	3.2	98.0
Haleakala	7119	3.7	21.7	6.3	99.7	2.3	8.0	3.2	99.7	2.8	11.3	2.4	99.0	3.6	22.1	7.6	98.6
San_Fernando	7824	5.7	19.6	17.5	100.0	5.0	16.7	15.1	100.0	4.0	16.9	16.8	97.3
Katzively	1893	14.9	19.0	6.0	99.6	11.0	16.9	6.1	98.5	7.0	15.3	5.2	80.0	8.9	29.3	10.6	85.4	11.3	30.2	9.8	97.4
Grasse_MEO	7845	4.3	14.7	7.8	99.9	2.4	11.7	3.1	100.0	3.4	16.2	4.5	99.3	2.8	16.2	5.4	96.7	2.3	16.3	5.0	93.5
Concepcion_847	7405	8.4	38.9	7.2	99.7	3.1	42.9	7.9	100.0					3.3	35.8	11.0	100.0
Shanghai_2	7821	5.7	34.2	20.3	100.0	4.6	38.1	13.4	100.0	3.6	42.9	17.9	95.5	6.0	44.4	23.2	97.4	2.9	30.1	19.9	82.5
Simosato	7838	6.1	31.0	12.0	100.0	2.9	19.8	6.4	99.8	4.5	21.6	6.8	98.1	4.5	18.1	6.1	98.6	5.3	16.9	5.1	93.0
Baikonur	1887	12.6	24.7	22.7	99.7	10.4	25.1		99.1	5.9	26.1	15.9	80.5	12.0	23.3	14.3	93.4
McDonald	7080	5.4	16.4	4.7	99.8	3.4	13.5	6.1	100.0	4.1	14.9	3.0	98.2	3.9	21.5	3.0	93.3	2.4	13.5	5.9	94.6
Beijing	7249	5.1	10.0	19.4	100.0					4.5	13.2	25.1	100.0	5.8	22.0	25.6	96.8
Papeete	7124	4.2	19.1	9.9	100.0	2.2	3.8	3.6	100.0	3.6	10.5	4.1	100.0	2.7	9.1	6.5	100.0	3.9	17.4	28.8	96.9
Altay	1879	18.3	54.2	23.6	100.0									4.1	20.8	20.2	98.3
Kiev	1824	15.7	29.6	34.9	93.8	15.8	35.0	36.9	95.3	7.3	29.7	21.4	70.0	12.8	23.5	35.5	88.6
Badary	1890	7.9	12.5		100.0	5.9	11.5		100.0					6.7	15.3		100.0
Zelenchukskya	1889	5.0	20.6		100.0	5.0	12.8		100.0					5.4	13.3		100.0
Arkhyz	1886	7.8	32.3	21.2	100.0	5.3	31.8	11.1	99.3	5.8	22.0	9.9	90.9
Koganei	7308													6.9	20.1	29.4	98.4
Komsomolsk	1868	9.8	46.5	49.7	98.1	6.6	44.1	26.6	100.0	6.4	32.5	21.6	85.7	5.7	27.7	15.4	98.3
Svetloe	1888					4.0	9.4		100.0