International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2016 through March 31, 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		1000	400	100	3500
Yarragadee	7090	16280	2914	7754	26948	281335	23409	25982	330726	184738	5.8	7.7	8.7
Changchun	7237	9604	1126	6524	17254	78264	6945	17470	102679	54018	4.9	7.2	10.0
Mount_Stromlo_2	7825	6558	1157	2406	10121	93531	8832	7976	110339	71347	3.3	5.1	8.1
Herstmonceux	7840	4719	826	3535	9080	63451	8747	10607	82805	52430	3.4	9.2	13.3
Graz	7839	4034	634	3056	7724	75874	4132	14964	94970	47514	2.1	3.8	5.1
Wettzell	8834	4029	536	2891	7456	33472	3161	11080	47713	28141	6.9	11.4	14.4
Greenbelt	7105	5311	915	933	7159	91380	7877	3377	102634	60698	2.1	5.8	8.2
Zimmerwald_532	7810	4468	701	1106	6275	72669	9091	3849	85609	61262	12.1	11.4	14.2
Monument_Peak	7110	4841	617	771	6229	80663	4368	1903	86934	45599	5.0	7.2	10.3
Matera_MLRO	7941	2559	1040	2086	5685	28445	8854	8258	45557	43351	.9	2.3	3.5
Potsdam_3	7841	4108	502	520	5130	68139	4758	2879	75776	42942	6.9	10.4	13.1
Wettzell	7827	2155	490	2477	5122	21366	3001	7679	32046	18511	7.6	9.9	10.1
Shanghai_2	7821	2159	365	2185	4709	17817	3190	8986	29993	18125	8.2	8.9	8.3
Altay	1879	278	254	2391	2923	3046	1463	8815	13324	6714		29.9	28.3
Haleakala	7119	2276	584		2860	35371	4977		40348	31263	4.9	8.2	10.4
Arequipa	7403	2501	125		2626	25894	681		26575	15973	6.2	8.3
Komsomolsk	1868	206	205	2210	2621	2324	1180	7518	11022	5244		32.9	36.6
Hartebeesthoek	7501	1921	447	216	2584	29640	4180	1042	34862	27412	5.4	8.9	11.2
Badary	1890	2163	156	122	2441	22149	943	411	23503	11887	-0.1	34.4	31.6
Baikonur	1887	146	465	1799	2410	967	2181	6388	9536	7415		41.2	35.5
Brasilia	7407	489	380	1171	2040	1343	1423	4875	7641	5198	30.7	21.7	27.0
Katzively	1893	1680	244	71	1995	16642	1707	396	18745	13564	27.4	9.6	11.5
Arkhyz	1886	560	262	1071	1893	3996	1076	3628	8700	5671		31.0	34.5
Papeete	7124	1070	206	555	1831	17104	1717	2370	21191	13400	6.7	8.5	8.5
Simosato	7838	1199	360	24	1583	21268	6199	146	27613	32051	4.4	7.0	10.9
Simeiz	1873	1306	183	42	1531	14123	1274	212	15609	11231	31.8	11.4	16.7
Irkutsk	1891	757	242	487	1486	6742	2398	1320	10460	11859
Beijing	7249	834	135	458	1427	7721	1001	2072	10794	6820	11.7	15.1	21.1
Svetloe	1888	981	185	87	1253	8834	1483	291	10608	8607	-0.1		36.9
Grasse_MEO	7845	787	345	54	1186	24960	3655	362	28977	19394	8.5		15.3
Zelenchukskya	1889	729	208	245	1182	6909	1520	909	9338	8142	-0.1	31.2	41.2
Sejong	7394	880	105	22	1007	11606	947	128	12681	11101	4.5	10.1	14.5
Riga	1884	724	119	63	906	12286	1115	338	13739	8637	8.0	15.0	19.7
Borowiec	7811	713	144	19	876	11950	1428	83	13461	10234	12.1	23.9	17.0
Mendeleevo	1874	198	115	266	579	3595	1690	944	6229	6718	-0.1	29.5	36.4
Kiev	1824	515	21		536	3389	74		3463	2366	11.8	22.5	42.6
McDonald	7080	303	32	5	340	2009	103	16	2128	1466	10.7	14.9	13.2
San_Fernando	7824	7			7	50			50	12
San_Fernando	7824	7			7	50			50	12

 

 

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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	218	715	201	31.3

 

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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	3.4	12.3	2.4	100.0	2.0	6.7	1.3	100.0	2.2	14.8	2.2	99.5	2.2	14.5	2.7	98.4	1.9	9.3		92.3
Changchun	7237	5.3	22.8	4.9	100.0	3.2	23.7	3.8	100.0	2.1	26.4	5.0	96.9	2.8	20.7	4.4	97.7	2.8	30.8		89.3
Mount_Stromlo_2	7825	3.2	14.4	4.4	100.0	2.4	8.8	1.9	100.0	1.9	17.6	3.3	99.7	2.7	12.5	2.7	98.1	1.6	11.4		95.3
Herstmonceux	7840	1.8	6.7	1.9	100.0	1.1	7.2	1.4	100.0	0.9	11.0	2.5	100.0	1.7	8.1	1.7	98.9	0.8	7.9		97.3
Graz	7839	2.0	7.4	3.1	100.0	1.2	6.6	2.0	100.0	0.9	12.4	4.1	100.0	1.7	10.8	2.3	97.9	0.7	10.9		96.2
Wettzell	8834	3.5	9.3	5.4	100.0	2.3	9.1	3.9	100.0	2.0	12.7	4.3	99.9	2.9	8.5	5.9	98.9	2.6	13.3		93.5
Greenbelt	7105	2.5	12.8	5.0	100.0	1.4	9.7	2.7	100.0	1.5	13.4	4.0	99.9	1.9	10.7	4.0	99.1	1.8	14.7		92.2
Zimmerwald_532	7810	3.1	9.1	3.5	99.9	2.0	6.7	2.0	100.0	2.2	12.9	4.4	100.0	2.8	10.4	3.0	97.3	2.1	8.5		94.0
Monument_Peak	7110	4.4	18.4	4.3	99.6	2.8	14.4	3.5	100.0	2.2	21.3	2.2	97.9	2.1	9.3	7.4	97.4	2.3	13.4		91.3
Matera_MLRO	7941	2.2	10.6	2.1	100.0	1.1	8.3	2.1	100.0	1.0	14.4	4.9	100.0	1.6	12.0	3.9	99.9	1.1	15.0		96.2
Potsdam_3	7841	3.1	8.7	3.2	100.0	2.0	8.6	3.0	100.0	1.7	10.8	3.7	98.5	1.9	7.4	3.0	95.7	1.2	14.8		96.1
Wettzell	7827	2.4	6.9	2.7	100.0	2.1	8.3	3.7	100.0	0.8	11.6	3.3	100.0	2.5	7.6	4.2	95.5
Shanghai_2	7821	2.8	12.5	5.3	100.0	1.5	10.1	6.2	100.0	1.4	19.7	7.5	96.7	2.1	15.0	7.9	100.0	1.9	17.9		95.9
Altay	1879	4.5	24.7	13.4	100.0	2.8	27.6	15.2	100.0	1.8	29.9	17.3	97.7	2.7	22.1	13.0	97.1	2.8	26.7		96.4
Haleakala	7119	5.0	15.2	7.8	99.4	2.7	10.0	2.7	100.0	2.7	16.5	3.1	97.8	4.1	19.7	7.7	99.4	2.4	18.9		92.3
Komsomolsk	1868													2.4	28.8	11.7	99.2
Hartebeesthoek	7501	3.2	13.8	6.2	99.9	1.9	10.1	3.2	100.0	1.9	14.0	3.7	99.1	2.0	15.7	4.8	98.4	2.3	13.1		90.8
Badary	1890	6.9	14.5	7.4	99.6	6.0	16.3	8.6	100.0	4.0	21.3	5.9	88.7	7.7	13.5	13.6	94.3	4.7	21.0		91.4
Baikonur	1887					4.5	13.0	4.7	100.0	2.9	27.3	9.3	93.2	9.1	11.2	7.9	98.0	3.9	27.1		100.0
Brasilia	7407	5.6	23.3	5.4	100.0	4.9	17.1	4.1	100.0	2.5	37.6	13.0	95.9	5.8	11.5	13.6	97.6
Katzively	1893	13.9	18.8	13.1	100.0	10.8	14.6	9.1	100.0
Arkhyz	1886	10.0	36.1	27.3	100.0	6.6	36.9	16.8	100.0					5.4	34.2	13.0	94.5
Papeete	7124	4.4	12.3	9.2	100.0	2.5	11.0	5.0	100.0	2.6	15.9	7.7	97.9	3.3	19.3	10.8	99.7	2.5	17.5		94.6
Simosato	7838	4.8	18.4	6.1	99.9	2.9	14.6	6.8	100.0	2.9	15.4	16.0	98.3	4.1	15.2	3.4	99.9	3.3	11.2		94.6
Irkutsk	1891	7.0	11.3	4.9	100.0	5.8	10.4	3.6	100.0					4.8	7.2	5.0	93.5
Beijing	7249	8.9	17.2	13.2	95.8	12.8	19.9	12.6	100.0	3.4	29.1	17.4	81.7	7.8	18.3	18.1	98.2	4.2	19.1		91.0
Grasse_MEO	7845	3.5	9.1	4.2	100.0	2.6	15.5	5.4	100.0	2.7	18.1	4.8	99.9	2.5	16.5	14.3	96.7	1.8	13.4		91.9
Zelenchukskya	1889	8.7	29.6	14.0	100.0	5.8	32.6	14.2	100.0	4.9	31.2	28.1	90.5	5.5	14.2	13.5	98.3	5.5	24.8		97.0
Borowiec	7811	9.3	19.2	6.7	99.4	8.4	20.0	8.0	100.0	2.8	22.6	12.5	77.0	4.4	19.9	5.6	92.5
Mendeleevo	1874	10.2	15.9	8.0	100.0	8.9	18.5		100.0	3.8	17.7	10.5	88.5	5.6	11.0	17.8	94.2
McDonald	7080					5.5	13.7	17.4	100.0	2.9	16.7		95.5