International Laser Ranging Service

SLR Global Performance Report Card

July 1, 2016 through June 30, 2017

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	15590	2760	8533	26883	303304	26312	32598	362214	200336	5.9	7.8	8.6
Changchun	7237	8818	988	6112	15918	73724	6442	17134	97300	50788	5.1	8.5	11.1
Mount_Stromlo_2	7825	6545	1171	2551	10267	96947	9350	8878	115175	74232	3.4	5.2	7.8
Herstmonceux	7840	4963	835	3797	9595	67430	9212	11843	88485	55710	3.6	9.3	13.8
Zimmerwald_532	7810	5778	885	1999	8662	99597	13087	7214	119898	84763	10.9	11.6	14.7
Wettzell	8834	4373	585	2969	7927	37859	3630	11662	53151	31415	7.1	11.1	14.5
Graz	7839	4043	626	3187	7856	79146	4274	16012	99432	49886	2.1	3.3	5.1
Matera_MLRO	7941	3199	1272	2341	6812	36645	11338	10592	58575	54939	.9	2.4	3.7
Greenbelt	7105	4994	797	872	6663	91777	7558	3518	102853	59639	1.9	5.7	8.5
Monument_Peak	7110	4758	635	801	6194	84611	4829	2290	91730	48940	4.6	7.4	10.6
Wettzell_SOSW	7827	2338	510	2719	5567	21570	3013	8123	32706	18818	8.2	9.6	9.9
Potsdam_3	7841	4247	477	600	5324	72700	4501	3338	80539	43492	6.8	10.7	12.6
Shanghai_2	7821	2405	421	2388	5214	20497	3899	9986	34382	21902	7.7	9.5	8.9
Hartebeesthoek	7501	2596	632	546	3774	40483	5640	2534	48657	36846	6.1	9.4	11.0
Haleakala	7119	2365	545		2910	36348	4688		41036	31153	5.3	8.2	10.3
Altay	1879	280	223	2397	2900	3097	1246	9012	13355	6001		27.1	29.4
Komsomolsk	1868	194	176	2126	2496	2226	1008	7326	10560	4616		33.5	36.1
Arequipa	7403	2210	108		2318	24245	584		24829	15368	6.8	8.1	10.3
Baikonur	1887	130	393	1689	2212	818	1677	6132	8627	5761		27.6	32.4
Badary	1890	1922	118	117	2157	20873	612	382	21867	9747	-0.1	28.7	24.0
Beijing	7249	1060	134	825	2019	9165	877	3095	13137	7541	11.4	14.4	19.6
Papeete	7124	1203	191	570	1964	19956	1661	2813	24430	14546	6.5	8.3	9.1
Katzively	1893	1691	191	63	1945	16548	1324	342	18214	12313	28.8	11.7	13.2
Brasilia	7407	431	321	995	1747	1376	1144	3775	6295	4275	31.7	22.3	29.4
Simeiz	1873	1489	179	56	1724	16055	1274	278	17607	12364	31.6	9.7	14.1
Arkhyz	1886	572	237	914	1723	4226	964	3100	8290	5438		31.1	36.4
Simosato	7838	1178	320	26	1524	20215	5527	142	25884	29512	4.4	8.2	13.8
Grasse_MEO	7845	786	378	18	1182	23827	4028	121	27976	20558	8.9		15.3
Riga	1884	976	100	63	1139	17837	921	323	19081	9843	7.4	14.3	16.9
Zelenchukskya	1889	743	183	210	1136	7510	1375	798	9683	7915	-0.1	28.9	40.3
Irkutsk	1891	506	146	318	970	4399	1405	884	6688	7119
Borowiec	7811	772	125	20	917	13219	1277	87	14583	10240	11.7	22.8	15.4
Sejong	7394	706	75	14	795	8350	635	61	9046	7902	4.7	8.3	12.2
Svetloe	1888	609	96	49	754	6086	745	156	6987	4721	-0.1		25.0
Mendeleevo	1874	197	73	274	544	3748	1026	966	5740	4430	-0.1	26.5	35.0
Kiev	1824	490	14		504	3281	53		3334	2178	14.6	23.6
McDonald	7080	341	30	6	377	2257	79	18	2354	1546	8.5	13.9	16.1

 

 

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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
Grasse_MEO	7845	307	1041	362	27.2
Matera_MLRO	7941	3	4	4	46.8

 

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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	3.3	14.9	3.0	100.0	2.0	7.1	1.5	100.0	2.2	14.0	3.0	99.3	2.2	17.2	2.9	98.8	1.9	7.8	1.5	93.7
Changchun	7237	4.5	24.1	5.2	99.9	3.1	27.5	5.4	100.0	2.1	33.3	7.3	95.9	2.9	21.0	5.4	97.3	4.5	27.2	9.1	94.7
Mount_Stromlo_2	7825	3.0	17.3	2.9	100.0	2.3	9.7	1.9	100.0	1.8	13.2	3.7	99.7	2.8	15.2	3.4	97.5	1.7	10.4	2.1	95.8
Herstmonceux	7840	1.8	10.8	2.3	100.0	1.0	6.5	1.3	100.0	1.1	10.3	2.6	100.0	1.6	10.3	1.9	99.7	0.8	6.5	2.8	97.7
Zimmerwald_532	7810	2.7	11.1	3.0	100.0	1.7	7.5	1.5	100.0	1.9	10.8	3.1	99.8	2.9	11.9	1.7	97.5	1.7	7.6		94.8
Wettzell	8834	3.0	13.1	6.5	100.0	2.3	8.9	6.2	100.0	1.8	12.2	5.9	99.6	2.5	10.5	7.4	98.3	1.6	10.9	8.2	95.0
Graz	7839	2.0	9.1	3.5	100.0	1.5	6.2	2.3	100.0	0.9	11.1	4.0	99.3	1.8	8.5	3.5	97.1	0.6	8.8	2.5	96.1
Matera_MLRO	7941	2.3	13.9	3.9	99.7	1.2	8.8	3.3	100.0	1.3	14.0	4.6	98.9	1.5	13.6	3.8	98.8	1.1	14.2	5.0	96.4
Greenbelt	7105	3.0	12.5	6.4	99.7	1.6	7.8	3.9	100.0	1.7	12.0	4.7	99.0	2.5	15.9	4.0	98.9	1.7	10.2	6.1	90.7
Monument_Peak	7110	5.0	20.6	2.9	99.2	2.3	15.7	3.8	100.0	2.4	21.7	5.8	98.1	2.9	16.1	3.0	97.0	1.8	15.7	4.1	88.9
Wettzell_SOSW	7827	2.1	10.7	4.0	100.0	1.3	9.5	5.7	100.0	1.0	15.1	7.8	99.3	2.6	17.7	4.6	94.7
Potsdam_3	7841	2.6	11.7	4.6	100.0	1.7	7.6	4.0	100.0	1.4	10.1	4.1	99.8	1.6	8.5	3.1	98.2	1.1	12.8	4.3	95.5
Shanghai_2	7821	3.0	16.1	4.8	100.0	1.6	10.8	5.5	100.0	1.6	15.5	7.1	99.6	2.9	15.7	7.0	100.0	1.3	15.4	5.8	97.6
Hartebeesthoek	7501	3.2	12.9	6.2	100.0	1.9	6.3	3.7	100.0	1.8	13.8	4.8	99.0	2.0	14.7	6.4	98.3	2.3	13.9	5.9	91.9
Haleakala	7119	5.3	26.4	8.9	99.8	2.8	9.2	3.5	100.0	2.7	11.6	3.1	97.2	3.4	18.0	8.1	98.4	2.9	21.9	13.4	91.7
Altay	1879	5.6	26.4	14.7	100.0	2.6	24.5	20.2	100.0	2.4	25.8	21.4	99.3	3.4	26.7	14.0	100.0
Komsomolsk	1868	9.0	42.0	28.2	93.2	6.1	46.9	22.8	100.0					3.9	24.0	10.6	95.2
Arequipa	7403	7.2	32.0	19.5	96.4	6.4	30.5	25.2	100.0	3.1	38.7	22.3	93.8	6.1	32.5	28.9	95.4
Baikonur	1887	6.6	24.3	24.3	100.0	5.5	27.6	10.4	100.0	3.4	21.4	11.3	92.8	5.6	15.7	7.2	98.8
Beijing	7249	7.9	15.8	14.5	95.0	11.7	15.1	10.9	100.0	4.0	22.1	16.9	88.0	6.4	21.1	14.8	95.5	3.0	24.5		84.4
Papeete	7124	4.4	16.5	9.6	100.0	2.7	8.8	5.0	100.0	3.2	12.7	7.1	98.1	3.9	19.3	8.7	99.2	1.6	12.3	5.4	93.6
Katzively	1893	13.5	22.1	13.7	96.9	13.3	22.3	10.9	100.0	2.6	15.1	10.1	74.4	11.0	18.3	10.1	90.0
Brasilia	7407	4.8	30.7	10.7	100.0	3.7	18.5	5.8	100.0	2.1	36.5	13.8	93.8	5.5	23.2	13.1	94.7
Simeiz	1873	23.6	43.2	24.9	92.9	24.3	46.3	31.4	100.0	3.8	42.2	13.4	53.1	25.0	43.4	31.3	90.7
Arkhyz	1886	11.1	29.0	26.8	100.0	7.9	27.3	21.5	100.0	4.9	28.5	18.3	82.5	5.3	25.8	13.9	93.9
Simosato	7838	5.8	22.1	6.4	99.8	4.0	19.1	7.0	100.0	3.5	17.1	17.4	96.8	4.9	10.0		99.7	3.2	14.3	4.5	92.6
Grasse_MEO	7845	3.8	11.6	7.1	100.0	2.7	18.6	7.7	100.0	2.2	17.4	5.7	98.7	2.9	18.3	12.8	97.1	1.8	12.2	4.7	94.8
Riga	1884	14.4	31.4	33.2	98.8	10.7	28.2	28.9	100.0
Zelenchukskya	1889	7.0	18.4	15.5	100.0	6.3	18.6	16.0	100.0	4.5	19.4	26.8	90.6	6.4	16.9	10.5	93.0
Irkutsk	1891	7.0	13.2	7.2	100.0	6.1	12.7	7.6	100.0	2.7	21.0		95.6	8.6	23.4		97.6
Borowiec	7811	5.6	18.7	9.0	100.0	4.4	15.5	10.1	100.0
Sejong	7394													1.8	8.2	30.6	98.4