International Laser Ranging Service

SLR Global Performance Report Card

February 1, 2016 through January 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		2300	600	3000	3500
Yarragadee	7090	14651	2498	6648	23797	283859	23289	24742	331890	184337	5.7	7.8	8.6
Changchun	7237	10335	1261	7128	18724	84889	7523	19237	111649	58265	4.7	7.3	9.5
Mount_Stromlo_2	7825	6568	1128	2468	10164	93991	8364	8353	110708	70854	3.4	5.2	7.9
Herstmonceux	7840	4892	807	3597	9296	65472	8666	10798	84936	52852	3.4	9.1	12.4
Greenbelt	7105	5430	888	954	7272	94292	8176	3612	106080	61801	1.9	5.8	7.5
Graz	7839	3771	577	2843	7191	69230	3695	13849	86774	43340	2.1	3.9	5.0
Wettzell	8834	3494	449	2620	6563	28619	2593	10289	41501	24062	7.0	11.5	14.4
Monument_Peak	7110	5036	584	768	6388	89154	4428	2196	95778	49477	4.9	7.2	9.2
Wettzell_SOSW	7827	2026	467	2317	4810	21817	3018	7454	32289	18600	7.3	9.5	9.7
Potsdam_3	7841	3621	453	447	4521	59029	4430	2424	65883	38087	6.9	10.2	12.7
Shanghai_2	7821	2057	334	1983	4374	17505	2745	8422	28672	16213	7.4	7.3	7.4
Matera_MLRO	7941	1947	753	1363	4063	21775	6719	6250	34744	33093	.9	2.5	3.5
Zimmerwald_532	7810	3073	466	305	3844	47919	5519	1190	54628	39709
Haleakala	7119	2432	583		3015	38398	5169		43567	33262	5.0	8.3	10.4
Arequipa	7403	2568	123		2691	27231	685		27916	16843	6.7	8.2	10.8
Altay	1879	244	260	2091	2595	2544	1485	7466	11495	6529		32.0	28.1
Komsomolsk	1868	167	236	2077	2480	1787	1378	6960	10125	5531		40.6	36.0
Brasilia	7407	485	420	1246	2151	1344	1562	5297	8203	5617	31.6	19.4	27.0
Baikonur	1887	135	449	1550	2134	913	2123	5400	8436	7228		41.2	34.3
Katzively	1893	1556	259	59	1874	15601	1902	327	17830	13744	27.9	8.0	12.8
Hartebeesthoek	7501	1426	283	104	1813	22670	2873	617	26160	20061	5.0	8.9	10.7
Arkhyz	1886	516	281	1005	1802	3688	1176	3397	8261	5792		32.9	36.0
Badary	1890	1557	107	63	1727	14854	720	191	15765	9248	-0.1	32.9	29.2
Papeete	7124	985	181	474	1640	15763	1608	2212	19583	12793	6.4	8.2	8.9
Simeiz	1873	1299	225	66	1590	14473	1556	312	16341	12123	7.8	13.9	17.7
Irkutsk	1891	802	256	520	1578	7281	2520	1466	11267	12652	-0.1		33.2
Simosato	7838	1086	324	28	1438	20406	5641	205	26252	29753	5.6	7.7	11.4
Beijing	7249	805	162	459	1426	7342	1248	2016	10606	7574	11.6	16.6	24.5
Svetloe	1888	1067	223	100	1390	9968	1814	321	12103	10261	-0.1		32.9
Zelenchukskya	1889	678	236	276	1190	6306	1719	994	9019	8491	-0.1	31.0	40.1
Sejong	7394	919	161	73	1153	15803	2247	625	18675	18401	4.4	9.8	12.6
Grasse_MEO	7845	682	303	57	1042	23116	3191	365	26672	17162	8.8		15.5
Borowiec	7811	623	149	18	790	10580	1491	79	12150	9649	13.2	23.5	16.6
Riga	1884	602	115	59	776	10035	1080	321	11436	7579	8.3		18.1
Kiev	1824	504	31		535	3254	107		3361	2367	13.9	19.7
Mendeleevo	1874	166	114	238	518	2815	1732	841	5388	6545	-0.1	29.8	36.0
McDonald	7080	332	26	11	369	2106	92	37	2235	1460	10.5	12.8	8.4
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	211	679	211	31.5

 

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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	3.9	13.8	2.3	99.9	2.3	6.9	1.4	100.0	2.4	17.8	2.1	99.1	2.7	16.0	2.6	97.1	1.8	9.8		92.1
Changchun	7237	5.1	21.0	5.7	99.9	3.3	22.0	3.2	100.0	1.9	27.8	3.6	99.3	2.9	16.8	4.3	96.6	2.6	28.1		91.9
Mount_Stromlo_2	7825	4.3	17.1	4.8	100.0	2.5	9.7	3.0	100.0	2.1	18.0	3.4	97.3	2.7	11.3	2.7	98.3	1.6	14.4		94.1
Herstmonceux	7840	1.8	7.6	2.1	100.0	1.1	6.5	1.4	100.0	0.7	12.0	2.9	100.0	1.7	7.6	1.7	99.0	0.8	9.4		97.2
Greenbelt	7105	2.1	10.5	4.5	100.0	1.2	8.2	2.1	100.0	1.3	12.9	3.9	99.8	1.5	13.6	4.1	98.5	1.8	13.9		89.1
Graz	7839	1.8	6.1	2.3	100.0	1.4	6.7	1.9	100.0	0.6	13.5	4.3	99.5	1.9	9.2	2.6	97.3	0.5	10.9		95.7
Wettzell	8834	3.3	12.3	5.2	100.0	2.4	8.3	4.2	100.0	2.1	14.9	4.2	99.8	2.8	10.0	5.8	97.2	2.7	12.2		91.8
Monument_Peak	7110	3.8	17.5	7.0	99.9	2.0	10.9	3.2	100.0	2.1	16.6	2.8	99.3	2.3	11.0	10.3	97.4	1.8	14.7		90.9
Wettzell_SOSW	7827	2.2	8.6	8.6	100.0	2.1	10.4	3.5	100.0	0.6	15.7	3.9	100.0	2.8	11.3	4.1	92.9
Potsdam_3	7841	3.2	9.5	2.7	99.8	2.0	9.6	3.5	100.0	1.7	15.1	4.0	98.1	2.1	8.2	2.8	97.1	1.5	13.9		96.8
Shanghai_2	7821	2.4	15.2	6.0	99.7	1.2	14.0	5.9	100.0	0.9	19.3	7.5	99.7	1.3	14.6	7.5	96.8	1.0	18.4		96.1
Matera_MLRO	7941	2.0	11.9	11.5	100.0	1.0	9.0	2.6	100.0	0.8	19.6	6.9	100.0	1.4	15.4	4.5	99.9	0.9	17.7		96.1
Haleakala	7119	4.6	16.2	6.3	99.3	2.4	8.8	2.2	100.0	2.4	18.6	3.0	98.4	3.8	19.4	7.1	99.5	2.6	21.3		91.7
Altay	1879	4.7	26.6	11.6	100.0	2.6	28.0	14.2	100.0	1.7	33.5	16.2	96.9	2.4	23.3	10.7	98.5	1.7	26.1		91.9
Komsomolsk	1868	13.6	35.5	25.9	100.0	3.6	41.9	14.5	100.0	3.6	41.0	27.4	100.0	3.1	28.2	12.6	99.3	2.4	16.2		98.3
Brasilia	7407	5.9	25.2	5.5	100.0	5.1	16.4	4.1	100.0	3.0	36.9	12.7	97.3	3.3	9.8	17.9	91.4
Baikonur	1887					4.2	13.7	4.6	100.0	2.5	24.2		96.2	5.6	10.7	8.2	97.6	1.7	23.8		100.0
Katzively	1893	16.3	22.9	7.0	98.5	10.3	30.0	7.3	100.0	5.3	30.8	13.8	76.8	9.6	26.8	8.3	86.1	10.6	20.4		92.6
Hartebeesthoek	7501	2.8	16.2	6.3	100.0	1.6	8.3	3.5	100.0	1.5	16.5	3.9	99.8	2.2	12.5	5.0	99.0	1.2	13.3		89.3
Arkhyz	1886	10.3	26.3	26.5	99.6	6.9	27.0	8.4	100.0	4.3	39.9	14.5	93.5	5.3	27.2	10.4	96.3
Badary	1890	7.0	14.1	9.6	100.0	5.2	15.1	8.7	100.0	3.7	22.4	8.5	93.3	5.8	14.1	11.7	91.8	4.7	18.2		94.3
Papeete	7124	4.3	12.2	8.9	100.0	2.7	9.4	5.0	100.0	2.1	16.9	7.8	98.0	3.9	19.7	13.0	99.3	2.1	16.4		95.3
Simeiz	1873	27.0	40.4	16.4	88.5	41.9	45.4	26.8	100.0	3.4	38.6	16.2	39.1	27.9	46.6	37.4	91.7
Simosato	7838	4.7	21.6	3.7	100.0	2.5	17.3	5.9	100.0	2.6	16.2	14.7	99.0	3.9	14.3	3.0	99.9	3.1	16.6		93.5
Zelenchukskya	1889	8.5	25.4	12.6	99.8	6.2	29.4	14.4	100.0	4.6	30.9	15.6	92.1	5.7	11.2	13.0	94.8	4.9	26.5		95.4
Sejong	7394	2.2	13.4		100.0					0.9	17.7		100.0	1.5	21.8		100.0
Grasse_MEO	7845	3.8	9.4	4.3	100.0	2.6	15.6	4.9	100.0	2.6	22.0	7.6	99.8	2.7	12.2	13.4	96.2	2.2	13.8		95.5
Borowiec	7811	6.8	15.5	5.0	99.6	5.7	15.5	6.4	100.0	3.0	15.1	11.7	94.4	3.9	12.3	5.6	96.4	6.8	16.7		94.7
Mendeleevo	1874	6.2	9.9	6.9	100.0					3.9	11.8	8.9	95.9	5.5	7.4	17.0	98.5