International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2014 through March 31, 2015

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	12909	2493	6627	22029	228512	21102	22190	271804	164367	5.9	7.6	9.4
Changchun	7237	9785	1292	6478	17555	83318	7624	18403	109345	58831	10.1	13.2	16.8
Mount_Stromlo_2	7825	7332	1447	3814	12593	105873	13717	14505	134095	98328	3.4	5.3	8.6
Greenbelt	7105	5222	1003	1380	7605	103990	9786	4709	118485	71661	4.4	8.8	12.1
Zimmerwald_532	7810	3834	719	2572	7125	61122	10066	18191	89379	59831
Herstmonceux	7840	3664	752	2652	7068	47975	7140	8319	63434	41942	3.4	8.8	12.2
Monument_Peak	7110	4726	862	1348	6936	86274	7635	3793	97702	60486	5.0	8.3	8.7
Graz	7839	3288	531	2602	6421	59795	3544	13254	76593	41104	2.1	3.7	5.0
Matera_MLRO	7941	2751	1124	2327	6202	31032	9035	8778	48845	47071	1.2	3.2	3.9
Wettzell	8834	3196	489	2375	6060	30585	3575	8964	43124	28254	7.3	10.2	13.8
Hartebeesthoek	7501	2706	880	744	4330	43714	8921	4608	57243	50104	7.5	12.0	15.3
Shanghai_2	7821	1871	385	1612	3868	14745	2363	6821	23929	15016	16.3	8.6	7.6
Badary	1890	2563	310	421	3294	28972	1760	1334	32066	18073		33.1	36.0
Arequipa	7403	2679	269		2948	29353	1775		31128	22849	5.5	9.1	7.0
Potsdam_3	7841	2445	273	222	2940	41240	2792	1721	45753	26862	7.3	10.5	12.0
San_Juan	7406	1836	488	442	2766	31859	5436	2902	40197	32870
Svetloe	1888	1319	602	526	2447	13830	5086	1852	20768	24597		26.1	32.1
Beijing	7249	1245	278	897	2420	13710	2113	4048	19871	13767	4.9	10.3	14.2
Altay	1879	272	248	1852	2372	2611	1404	7940	11955	6118		28.6	29.5
Arkhyz	1886	560	296	1085	1941	3385	1280	3965	8630	6129		33.6	35.1
McDonald	7080	999	354	444	1797	9655	3059	1480	14194	15063	8.7	10.7	12.0
Grasse_MEO	7845	460	400	922	1782	18577	5044	3022	26643	21494	10.0		16.3
Komsomolsk	1868	84	147	1526	1757	957	839	6111	7907	3218		33.8	32.8
Haleakala	7119	1329	358		1687	17327	3889		21216	21177	5.8	7.8	11.3
Katzively	1893	1460	210	8	1678	13779	1233	43	15055	11229	27.4	8.7	15.3
Kiev	1824	1399	252	8	1659	9639	1136	24	10799	8691	13.4	22.6	21.9
Zelenchukskya	1889	549	260	838	1647	5620	2244	2397	10261	9802		23.5	27.4
Papeete	7124	711	164	470	1345	10562	1437	1884	13883	9980	7.2	8.0	9.2
Simosato	7838	916	254	55	1225	17041	4128	410	21579	23529	5.6	9.5	14.9
Baikonur	1887	59	419	648	1126	495	2728	2238	5461	8665			30.2
San_Fernando	7824	962	121	4	1087	11621	606	16	12243	7189	6.5	14.4	22.4
Simeiz	1873	774	194	89	1057	9919	1282	427	11628	8788		10.4	11.9
Daedoek	7359	445	80	108	633	6346	747	733	7826	7100
Brasilia	7407	6	170	366	542	48	1155	1567	2770	3474	2.6		26.4
Kunming	7820	237	48		285	3235	245		3480	2753
Greenbelt	7125	23	19	11	53	221	125	48	394	519
Concepcion_847	7405	2			2	16			16	16

 

 

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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
Grasse_MEO	7845	118	516	90	34.8
Matera_MLRO	7941	1	4	4	36.6
McDonald	7080	1	2	2	47.7

 

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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	4.6	23.5	2.7	99.9	2.6	11.2	1.3	99.9	2.9	21.6	1.9	99.1	2.8	22.0	3.2	96.7	2.9	15.7	2.1	91.0
Changchun	7237	4.8	22.6	3.5	100.0	3.6	21.6	5.2	100.0	2.0	31.3	4.7	98.9	2.8	13.7	5.1	97.7	2.4	34.2	22.5	90.8
Mount_Stromlo_2	7825	4.2	18.5	1.9	99.8	2.7	14.2	2.1	99.7	2.5	22.1	3.7	97.9	2.9	15.4	6.0	96.6	1.6	12.3	4.0	96.4
Greenbelt	7105	3.6	15.4	3.4	100.0	2.1	8.1	1.7	99.9	2.3	17.3	3.4	99.5	2.4	17.1	6.3	97.5	1.8	13.0	5.6	91.2
Herstmonceux	7840	2.4	15.1	3.9	100.0	1.4	7.7	1.7	100.0	0.8	17.6	2.1	100.0	2.6	9.8	3.1	98.3	1.3	10.4	5.0	97.1
Monument_Peak	7110	4.0	20.6	3.6	99.9	1.8	9.7	2.2	99.9	2.4	19.0	3.9	99.5	2.2	15.9	2.9	98.4	1.8	15.1	4.2	91.4
Graz	7839	2.0	15.5	3.7	100.0	1.2	6.9	2.6	100.0	0.6	16.2	4.2	98.1	2.8	12.8	3.4	95.5	0.8	11.5	7.8	96.3
Matera_MLRO	7941	2.5	17.3	4.0	99.8	1.3	8.3	2.7	99.9	1.5	16.3	4.2	99.8	1.9	15.8	3.2	99.6	1.4	19.5	5.6	94.9
Wettzell	8834	3.2	9.7	5.0	100.0	2.8	9.0	2.7	100.0	1.9	11.2	3.3	100.0	2.9	8.8	3.6	97.1	2.6	12.8	7.6	93.6
Hartebeesthoek	7501	5.2	21.4	7.6	99.7	3.4	10.9	3.9	99.7	3.2	16.6	5.7	98.3	3.2	23.0	7.3	93.6	5.3	16.3	6.0	89.1
Shanghai_2	7821	2.2	19.4	15.0	99.1	1.2	15.1	10.3	100.0	0.8	18.5	16.7	99.4	1.6	21.6	12.0	100.0	0.6	20.7	13.1	95.9
Badary	1890	9.5	16.5	5.1	99.8	7.3	12.8	5.3	99.8	5.3	30.4	9.2	94.9	5.9	12.8	8.8	94.7	5.9	21.1	14.5	95.6
Potsdam_3	7841	3.5	16.5	3.1	99.7	2.5	11.4	2.3	99.6	2.2	17.0	3.9	99.6	2.6	9.4	3.4	98.0	1.8	14.1	4.4	93.9
Svetloe	1888	8.1	19.0	4.4	100.0	5.8	17.4	6.1	99.9	5.5	24.9	6.6	96.1	5.5	15.5	8.8	96.4	6.3	18.7	12.2	97.1
Beijing	7249	6.2	15.1	9.2	99.0	7.6	19.1	5.6	100.0	4.3	20.6	8.4	97.3	5.8	22.6	15.4	95.2	3.5	22.2	9.5	93.1
Altay	1879	5.4	24.4	17.0	100.0	3.7	23.9	15.6	100.0	3.5	27.5	13.9	100.0	3.4	17.6	14.0	100.0	4.0	23.7	15.2	97.6
Arkhyz	1886	10.6	28.8	17.0	100.0	7.8	25.6	13.1	100.0	5.1	41.1	16.2	98.2	8.8	24.5	11.9	91.8	5.8	18.3	11.6	98.8
McDonald	7080	5.0	22.2	4.5	100.0	3.4	13.0	2.9	99.9	3.2	14.6	5.3	98.0	3.4	21.1	8.1	95.7	3.5	13.6	12.5	94.3
Grasse_MEO	7845	4.6	15.7	5.9	100.0	2.9	19.2	8.3	100.0	3.0	21.5	5.7	100.0	2.9	15.4	9.7	97.2	2.6	15.9	7.2	95.3
Komsomolsk	1868	14.2	46.9	15.4	100.0	4.8	47.7	18.3	100.0	5.4	41.1	30.0	99.0	4.6	30.0	24.6	99.2
Haleakala	7119	4.6	29.5	4.2	99.7	2.0	9.6	3.1	99.6	1.7	12.0	5.0	99.2	6.8	30.3	6.4	99.1
Katzively	1893	19.3	22.8	6.8	97.0	13.0	21.6	7.0	94.9	6.3	28.7	8.4	74.9	10.3	28.3	14.8	83.3	13.5	20.7	7.0	92.0
Kiev	1824	18.0	41.1	37.0	90.0	12.9	41.6	36.1	91.2	4.2	34.3	30.6	70.0	22.5	42.5	29.8	85.1	15.2	28.1		94.3
Zelenchukskya	1889	6.3	22.6	11.9	100.0	4.3	21.0	9.8	100.0	4.2	24.2	6.9	99.2	5.1	21.2	7.2	99.5	4.3	21.1	10.7	96.6
Papeete	7124	5.0	18.9	3.9	100.0	2.9	9.3	4.8	100.0	2.9	18.3	7.4	98.6	3.4	29.7	16.1	100.0
Simosato	7838	4.9	15.8	5.2	100.0	3.0	14.4	4.6	100.0	3.4	13.5	3.6	99.2	4.6	19.8	11.6	98.8	3.9	12.9	7.4	93.6
Baikonur	1887	11.0	21.4	12.8	100.0	9.8	15.6	11.5	100.0	6.4	32.9	9.6	91.3	8.9	21.6	10.3	90.9	7.1	23.3	22.4	93.8
San_Fernando	7824	7.3	21.6	41.6	99.3	6.5	15.4	34.0	100.0	3.9	20.5	29.2	96.9	5.3	18.7		96.5
Simeiz	1873	26.8	48.2	23.1	99.0	24.1	47.5	12.7	97.2	4.2	44.9	14.4	58.1	20.1	38.2	13.2	87.6	21.3	34.0	17.3	90.0
Brasilia	7407	4.8	24.5	4.5	100.0	3.9	19.4	16.9	100.0					6.8	29.1	12.7	95.9
Kunming	7820	9.8	33.6	38.8	98.3	10.8	53.0	31.1	100.0