International Laser Ranging Service

SLR Global Performance Report Card

August 1, 2018 through July 31, 2019

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		2300	600	3000	3500
Yarragadee	7090	18681	2525	7739	28945	294844	18995	39808	353647	167252	2.7	4.7	4.9
Changchun	7237	10075	777	4889	15741	128783	6337	18925	154045	61751	6.8	10.8	11.8
Zimmerwald_532	7810	9454	1186	4471	15111	159491	17596	16956	194043	120149	6.4	9.1	11.9
Herstmonceux	7840	6357	840	3998	11195	87560	10436	12959	110955	64528	3.5	9.2	12.8
Wettzell	8834	5778	905	3708	10391	103301	12012	30469	145782	93161	4.4	8.5	10.6
Mount_Stromlo_2	7825	6767	1044	1694	9505	100025	8248	5000250	5108523	74815	3.4	5.0	7.5
Kunming	7819	3881	544	4393	8818	45159	2247	10561	57967	24433	5.1	12.0	11.1
Wettzell_SOSW	7827	3853	603	3864	8320	81460	5122	20391	106973	54092	8.0	11.4	11.8
Graz	7839	4690	494	2908	8092	86369	3034	14169	103572	46310	2.5	3.3	5.1
Greenbelt	7105	6173	815	838	7826	112044	7332	4439	123815	62296	2.0	6.7	9.8
Matera_MLRO	7941	4133	1255	1970	7358	41086	9394	8309	58789	51358	1.0	2.6	3.4
Monument_Peak	7110	5133	414	453	6000	89622	3064	2743	95429	44177	2.8	5.7	7.4
Potsdam_3	7841	3757	431	1234	5422	50354	2884	4320	57558	26485	2.0	6.2	7.5
Hartebeesthoek_HARL	7501	3419	585	761	4765	45176	3600	4493	53269	31676	3.8	6.6	7.9
Shanghai_2	7821	1708	356	1868	3932	15532	3148	8587	27267	17448	8.6	8.3	7.9
Beijing	7249	1972	272	1505	3749	15907	1703	5355	22965	12289	6.6	15.9	15.0
Arequipa	7403	3555	97	15	3667	36048	400	207	36655	19210	4.7	9.3	9.8
Simeiz	1873	2244	280	381	2905	23197	1487	1622	26306	13396	15.9	10.5	12.2
Haleakala	7119	2261	478	21	2760	34332	3939	531	38802	27102	2.5	5.9	8.2
Grasse_MEO	7845	469	435	1564	2468	4841	5391	5499	15731	20240	9.8		17.4
Badary	1890	1550	441	367	2358	14263	2402	1186	17851	14778		36.0	37.2
Katzively	1893	2019	137	1	2157	22273	783	2	23058	13267	23.3	9.4	10.4
Hartebeesthoek_HRTL	7503	980	297	870	2147	10495	1504	3014	15013	8690	30.7	26.2	27.0
Irkutsk	1891	1368	208	540	2116	10780	1454	1142	13376	8538	39.5	31.4	35.6
Altay	1879	112	175	1630	1917	1082	925	4448	6455	3545			34.4
Komsomolsk	1868	81	153	1622	1856	1503	901	5483	7887	3208			30.0
Svetloe	1888	989	198	170	1357	6784	1027	430	8241	6612		24.8	32.5
Arkhyz	1886	446	201	639	1286	3609	1071	2190	6870	5277		42.3	33.8
Papeete	7124	846	94	303	1243	11773	709	1516	13998	7526	8.1	10.1	10.7
Brasilia	7407	227	246	705	1178	1251	778	1976	4005	2970	29.6	18.8	27.9
Zelenchukskya	1889	798	96	273	1167	6335	515	713	7563	5264		28.3	37.9
Borowiec	7811	893	137	98	1128	14762	1639	488	16889	10811	14.1	22.9	17.7
Simosato	7838	666	146	14	826	9342	1880	91	11313	11701	13.9	10.9	14.2
Baikonur	1887		325	493	818		1350	1760	3110	4050			29.4
Riga	1884	639	92	50	781	11495	888	254	12637	6513	9.4	16.8	10.6
Kiev	1824	656	61		717	6383	443		6826	4677	11.3	20.5	50.5
Sejong	7394	523	69	9	601	7207	496	63	7766	6665	3.9	8.3	11.0
Mendeleevo	1874	113	81	229	423	2516	1181	688	4385	4503		21.5	28.0
McDonald	7080	53			53	403			403	261

 

 

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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	403	1658	526	25.2
Matera_MLRO	7941	20	47
Wettzell	8834	6	36

 

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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 3 months
• the second AC column is the measure of short term bias stability, in millimeters, during the last 3 months. 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 the last 3 months 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					1.6	7.0	1.4	100.0	1.8	14.6	1.3	99.8	2.0	17.9	3.3	98.8	1.3	9.8	1.3	95.9
Changchun	7237					3.6	13.0	5.0	100.0	3.1	18.9	6.6	97.3	5.0	17.2	5.9	97.1	2.6	13.4	11.1	96.9
Zimmerwald_532	7810					1.5	7.5	1.9	100.0	1.5	13.0	2.4	99.6	2.5	11.2	1.4	97.0	1.8	9.8	2.3	95.1
Herstmonceux	7840					0.8	5.3	0.9	100.0	0.9	10.8	2.4	100.0	1.3	9.7	2.6	99.8	0.8	8.8	2.6	97.0
Wettzell	8834					1.4	9.5	5.5	100.0	1.6	20.2	2.6	94.5	3.0	20.1	3.3	96.8	1.0	10.7	3.3	96.8
Mount_Stromlo_2	7825					2.5	7.6	1.2	100.0	2.2	16.4	3.3	99.7	3.0	16.6	3.5	97.1	1.8	11.2	3.3	95.9
Kunming	7819					4.9	24.0	6.9	100.0	3.2	34.8	9.8	95.2	4.4	24.8	6.6	97.9
Wettzell_SOSW	7827					2.0	7.4	2.6	100.0	1.3	14.0	4.1	99.3	2.8	10.8	3.7	93.3
Graz	7839					1.3	5.8	2.9	100.0	0.8	12.5	5.6	100.0	2.1	8.1	4.9	99.1	0.9	10.5	2.9	97.2
Greenbelt	7105					1.8	7.1	1.8	100.0	2.0	15.1	4.8	99.1	2.8	15.9	4.3	98.4	1.7	11.6	2.3	94.4
Matera_MLRO	7941					1.2	5.4	0.9	100.0	1.0	12.7	1.9	100.0	1.5	12.4	2.5	99.8	1.0	15.0	2.9	96.7
Monument_Peak	7110					2.2	7.8	3.1	100.0	1.8	15.0	8.8	98.7	2.1	12.8	13.7	98.9	1.4	12.0	11.1	96.6
Potsdam_3	7841					1.4	9.6	3.3	100.0	1.0	13.0	3.1	100.0	1.6	14.2	7.3	99.3	0.9	12.7	5.5	95.8
Hartebeesthoek_HARL	7501					1.5	9.8	3.9	100.0	1.9	15.7	3.8	99.1	2.0	14.4	3.5	99.2	1.5	15.6	6.4	97.8
Shanghai_2	7821					1.7	11.8	5.7	100.0	1.7	18.4	12.6	100.0	2.6	14.3	7.6	96.9	1.5	19.9	12.2	97.5
Beijing	7249					12.3	20.6	13.7	100.0	5.2	21.2	15.4	91.4	6.1	17.1	14.4	97.1	4.6	13.2	12.0	93.0
Arequipa	7403					3.2	12.6	6.4	100.0	3.5	21.5	15.3	91.2	4.5	51.2	32.0	97.2
Simeiz	1873					23.1	47.3	9.7	100.0	5.5	41.9	23.8	60.1	19.4	43.2	24.8	87.3
Haleakala	7119					2.6	7.9	3.9	100.0	2.1	17.8	5.6	98.5	4.2	16.5	8.8	99.5	2.0	18.7	7.5	98.1
Grasse_MEO	7845					3.2	12.5	2.4	100.0	3.1	21.7	4.7	98.3	3.0	13.5	4.8	96.0	2.6	12.3	4.0	95.6
Badary	1890					5.4	14.1	7.1	100.0	3.8	24.9	9.4	95.5	5.0	18.5	9.8	98.4	3.6	20.4	6.3	95.7
Katzively	1893					9.2	18.4	9.2	100.0	5.8	30.0	9.4	85.8	11.2	25.9	12.6	86.3	5.9	17.3	7.8	90.7
Hartebeesthoek_HRTL	7503					4.5	22.0	7.6	100.0	3.8	25.0	3.6	96.1	6.2	22.7	12.8	100.0
Irkutsk	1891					7.7	11.6	6.1	100.0	4.3	18.6	9.6	92.2	7.5	11.0	9.1	96.9
Altay	1879					4.1	16.9	17.5	100.0	2.5	21.1		92.2	3.9	20.8	18.9	98.4	2.0	14.8	16.0	95.3
Komsomolsk	1868					4.1	17.9	6.7	100.0	3.9	26.2	18.8	100.0	4.9	17.9	9.4	100.0	2.9	12.5	4.2	96.4
Svetloe	1888					4.3	11.8	7.3	100.0	3.4	17.8	7.4	98.1	4.6	20.4	11.2	98.8	3.5	18.2	18.1	97.0
Arkhyz	1886					4.6	27.7	9.4	100.0	4.1	32.4	12.9	92.0	5.3	24.5	10.1	98.4	4.8	23.1	13.7	94.2
Brasilia	7407					3.3	16.6	7.7	100.0	2.2	34.4	23.6	94.2	4.9	17.3	15.8	98.6	2.8	24.5	21.1	100.0
Borowiec	7811					3.5	12.9	3.1	100.0	3.4	19.0	6.9	98.6	4.0	11.6	6.4	99.3	2.7	13.6	7.2	93.9
Simosato	7838					5.2	19.8	18.7	100.0	3.3	24.6	23.4	92.8	4.3	15.6	19.8	98.6
Baikonur	1887					7.1	13.2	7.7	100.0	4.2	23.9	10.8	89.5	6.1	15.2	12.7	93.8	5.5	21.9	6.0	96.0
Riga	1884					4.7	27.9	15.3	100.0	5.6	23.5	11.2	72.9	11.2	24.5	21.6	91.1	11.8	26.3		94.5
Sejong	7394					1.4	12.1	15.7	100.0
Mendeleevo	1874					3.8	14.3	6.1	100.0					4.8	12.1	10.4	98.6