International Laser Ranging Service

SLR Global Performance Report Card

May 1, 2015 through April 30, 2016

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	15008	2896	7321	25225	284624	25222	26259	336105	187576	5.5	7.9	8.5
Changchun	7237	10792	1339	8094	20225	85821	6852	20384	113057	55068	4.0	8.2	10.3
Mount_Stromlo_2	7825	6834	1274	2530	10638	97589	9698	10440	117727	77635	3.3	5.4	7.5
Greenbelt	7105	6656	1233	1764	9653	122358	11055	6274	139687	81459	4.3	7.7	11.1
Zimmerwald_532	7810	4298	750	2663	7711	71870	8284	18627	98781	60306
Herstmonceux	7840	3788	734	2999	7521	49151	7116	9378	65645	40751	3.5	9.1	12.6
Graz	7839	3771	622	2906	7299	70323	4210	14150	88683	47650	2.1	4.0	5.0
Matera_MLRO	7941	2750	1241	2604	6595	30850	10828	10111	51789	51918	1.2	3.1	4.2
Monument_Peak	7110	4745	711	1020	6476	83802	5743	2782	92327	52721	5.2	7.7	10.1
Wettzell	8834	3003	325	2444	5772	26203	2133	10027	38363	22056	7.4	11.7	14.8
Hartebeesthoek	7501	2264	646	559	3469	38856	6428	3210	48494	39081	8.2	19.6	19.2
Shanghai_2	7821	1382	235	1517	3134	10904	1690	6088	18682	10568	7.9	10.3	8.0
Potsdam_3	7841	2521	258	256	3035	41907	2587	1594	46088	26328	7.2	9.8	11.8
Badary	1890	2459	165	251	2875	25619	1297	967	27883	16574	-0.1	30.9	33.5
Arequipa	7403	2542	165		2707	28165	987		29152	18585	6.2	12.9	14.8
Haleakala	7119	2025	559		2584	30378	5370		35748	30993	5.0	8.6	10.3
Altay	1879	288	232	1966	2486	2487	1290	7071	10848	6062		23.4	31.9
Komsomolsk	1868	130	197	1892	2219	1113	1122	6388	8623	4383		32.5	31.1
Svetloe	1888	1261	401	416	2078	13647	3401	1201	18249	17465	-0.1	32.5	30.5
San_Fernando	7824	1761	127	52	1940	16182	652	156	16990	9135
Simeiz	1873	1400	241	157	1798	16839	1603	765	19207	12323		10.4	12.9
Arkhyz	1886	369	197	1158	1724	2241	787	4185	7213	4003		31.9	32.6
Simosato	7838	1281	325	31	1637	24379	5234	251	29864	31798	5.9	9.0	15.3
Katzively	1893	1390	175	63	1628	14896	1319	408	16623	11419	25.1	9.3	9.1
Wettzell	7827	681	143	795	1619	8423	1055	2680	12158	6831	7.0	10.7	11.0
Brasilia	7407	87	377	1124	1588	205	1209	4447	5861	3753	32.5	25.4	27.0
Papeete	7124	773	188	457	1418	11566	1631	1686	14883	11278	7.6	8.4	9.2
Zelenchukskya	1889	627	198	531	1356	5512	1498	1647	8657	7799	-0.1	25.3	36.8
Irkutsk	1891	222	314	794	1330	2515	3544	2462	8521	12748	-0.1	29.4	40.3
Beijing	7249	389	87	319	795	3529	665	1288	5482	3874	4.0	9.3	13.9
Kiev	1824	670	71		741	4105	307		4412	3093	10.9	34.2	27.0
Grasse_MEO	7845	326	244	51	621	11565	2927	251	14743	12625	8.0		14.4
Mendeleevo	1874	130	94	339	563	1980	1379	1090	4449	5251	-0.1	28.1	34.5
Baikonur	1887	29	77	202	308	186	569	652	1407	1887
McDonald	7080	144	39	38	221	1371	287	103	1761	1631
Riga	1884	77	19	2	98	1298	161	12	1471	1069	8.8	20.6	28.0
Riga	1884	77	19	2	98	1298	161	12	1471	1069	8.8	20.6	28.0

 

 

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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	42	107
Matera_MLRO	7941	4	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	3.6	19.5	1.7	100.0	2.3	7.6	1.7	100.0	2.5	15.7	1.9	99.8	2.6	15.3	2.5	97.7
Changchun	7237	4.5	28.1	6.1	99.9	3.4	27.8	5.4	100.0	1.7	30.7	6.9	99.4	3.0	24.0	14.6	97.1
Mount_Stromlo_2	7825	3.7	18.2	3.2	100.0	2.9	7.2	2.2	100.0	2.1	16.4	3.2	99.9	3.1	13.3	9.2	96.1
Greenbelt	7105	3.2	14.3	5.7	99.9	2.1	7.3	7.0	100.0	2.0	15.1	7.5	99.7	2.1	15.9	8.4	98.0
Zimmerwald_532	7810	3.0	12.7	5.3	100.0	1.9	6.0	2.3	100.0
Herstmonceux	7840	2.3	13.1	4.1	100.0	1.2	7.4	1.7	100.0	0.9	15.7	3.7	100.0	1.7	9.9	2.0	100.0
Graz	7839	2.2	13.2	4.1	100.0	1.5	6.8	2.4	100.0	0.7	16.0	5.1	100.0	1.7	10.4	10.0	97.8
Matera_MLRO	7941	2.4	16.9	9.9	100.0	1.3	7.8	2.8	100.0	1.3	21.3	6.0	100.0	1.5	16.0	4.1	100.0
Monument_Peak	7110	4.3	18.8	5.6	100.0	2.1	16.7	3.8	100.0	2.2	21.2	7.6	99.4	3.0	14.9	5.3	98.2
Wettzell	8834	3.2	12.1	3.8	100.0	2.7	9.3	3.5	100.0	2.4	12.7	4.5	100.0	3.1	7.6	8.4	96.4
Hartebeesthoek	7501	4.9	18.1	4.3	100.0	3.7	14.6	3.3	100.0	3.5	15.4	6.0	99.1	3.5	13.1	3.2	93.9
Shanghai_2	7821	2.4	18.7	12.3	100.0	1.4	12.6	9.3	100.0	1.1	21.0	8.0	100.0	1.6	18.7	15.7	98.8
Potsdam_3	7841	5.1	11.9	4.1	99.0	2.3	9.8	2.9	100.0	2.8	9.0	4.2	98.3
Badary	1890	9.6	14.2	8.9	100.0	7.1	12.3	6.1	100.0	6.4	20.6	7.3	95.6	7.1	10.6	11.6	92.9
Arequipa	7403	8.4	40.5	16.7	96.0	5.3	29.1	19.8	100.0	2.8	40.9	20.2	89.2
Haleakala	7119	4.0	21.4	5.5	99.7	2.4	7.5	2.5	100.0	2.5	17.4	3.3	99.0	3.5	20.3	6.0	99.0
Altay	1879	6.2	32.9	9.5	100.0	3.1	30.7	6.9	100.0	3.1	34.8	7.7	99.1	3.5	25.5	12.2	98.8
Komsomolsk	1868	11.7	53.1	29.4	100.0	4.0	52.8	24.4	100.0	3.5	48.7	32.9	99.2	3.9	27.4	23.9	98.9
Svetloe	1888	11.7	22.4	5.3	100.0	9.2	22.7	5.8	100.0	6.8	31.7	8.8	93.3	7.9	13.7	6.8	92.1
Simeiz	1873	28.1	28.8	27.9	99.2	22.6	29.2	25.2	100.0	6.0	38.7	20.8	62.7	22.3	40.2	20.2	94.3
Arkhyz	1886	9.9	22.7	17.5	100.0	6.7	20.8	17.0	100.0	4.4	23.7	20.9	96.5	7.5	24.8	10.8	94.9
Simosato	7838	4.9	21.5	3.9	99.9	3.2	16.1	4.9	100.0	3.3	17.5	6.3	99.3	4.2	13.5	26.8	99.9
Katzively	1893	13.7	18.0	9.0	99.0	10.7	13.4	8.7	100.0	5.5	26.6	14.3	85.7	9.0	9.1		92.0
Wettzell	7827	2.9	16.5	8.2	100.0	1.7	8.4		100.0	1.3	17.4		100.0	2.3	11.8		97.5
Brasilia	7407	5.6	25.4	9.4	100.0	5.3	18.6	7.1	100.0	2.9	32.3	9.6	99.0	6.1	19.8	11.4	94.4
Papeete	7124	5.1	17.2	6.8	100.0	2.9	8.4	4.1	100.0	2.8	16.6	6.6	98.9	3.6	14.2	10.1	100.0
Zelenchukskya	1889	6.9	20.9	6.2	100.0	4.8	21.0	6.2	100.0	3.5	25.0	6.9	92.7	5.2	16.3	9.7	98.5
Irkutsk	1891	7.1	13.5	6.0	99.8	8.9	13.8	8.6	100.0	4.5	15.4	4.7	95.3	5.5	11.6	4.7	96.4
Beijing	7249	7.2	18.9		97.8	6.9	16.7		100.0	4.1	24.4		97.0	6.0	10.2		98.9
Grasse_MEO	7845	4.6	16.9	4.7	100.0	2.6	12.1	2.3	100.0	2.6	18.2	7.1	99.5	2.8	16.0	9.5	97.4
Mendeleevo	1874	7.1	16.5	5.8	100.0					5.2	20.7	2.8	97.6	6.0	13.9	5.9	98.2
Baikonur	1887	5.9	16.7		100.0	4.2	17.1		100.0					5.1	13.6		95.7
Riga	1884	15.7	23.6		99.7	9.5	27.4		100.0	7.8	30.2		80.4	9.3	15.0		97.1