International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2013 through March 31, 2014

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	10951	2291	5531	18773	176683	20634	21986	219303	151295	5.6	8.2	10.0
Changchun	7237	8302	1209	5383	14894	69438	7235	14735	91408	55788	8.1	11.0	14.6
Zimmerwald_532	7810	5918	1234	4124	11276	94836	17517	17387	129740	101699	5.4	8.9	11.8
Wettzell	8834	4742	754	3670	9166	46509	5053	12683	64245	42679	6.8	9.7	13.5
Mount_Stromlo_2	7825	6085	1016	1030	8131	78089	7218	3984	89291	67056	3.5	7.0	10.8
Graz	7839	4240	668	3081	7989	75714	5468	18016	99198	55981	2.1	3.8	5.1
Herstmonceux	7840	3088	745	2007	5840	38592	7018	6069	51679	40262	6.1	12.7	13.9
Greenbelt	7105	4194	765	742	5701	76554	7666	3052	87272	59106	4.3	9.3	10.7
Matera_MLRO	7941	3215	1218	1226	5659	38497	10422	5279	54198	53824	1.2	3.1	4.0
Monument_Peak	7110	3705	827	586	5118	66531	6984	1701	75216	52153	9.0	13.8	16.5
Shanghai_2	7821	2041	384	1484	3909	17328	1893	5184	24405	15677	4.8	13.4	13.4
Hartebeesthoek	7501	2487	777	429	3693	39517	7305	2513	49335	43784	6.6	11.5	12.8
Potsdam_3	7841	2724	352	303	3379	48853	3840	2333	55026	34404	7.2	10.8	13.8
San_Juan	7406	1784	518	796	3098	27866	5527	4807	38200	32750	10.7		14.2
Arequipa	7403	2520	235		2755	28560	1514		30074	22668	5.4	10.1	9.4
Grasse_MEO	7845	890	535	880	2305	33070	6245	3262	42577	30631	9.2	15.8	16.5
Arkhyz	1886	832	349	791	1972	5399	1858	2878	10135	9402		10.3	12.9
Simosato	7838	1302	372	84	1758	25450	6725	694	32869	36560	5.2	6.8	10.9
Beijing	7249	1065	170	504	1739	10993	1156	2419	14568	9978	7.7	13.1	19.1
Katzively	1893	1440	213	34	1687	18043	1555	234	19832	15524	26.7	35.0	34.6
Altay	1879	203	138	1327	1668	2485	831	5407	8723	4128			6.0
Badary	1890	1221	183	174	1578	12470	1040	554	14064	10631		6.0	9.5
Haleakala	7119	1216	358		1574	14614	3324		17938	18943	5.2	10.3	13.1
Kunming	7820	1375	192		1567	20849	1348		22197	15569	6.8	23.4	23.6
McDonald	7080	977	360	215	1552	9978	2786	765	13529	14518	8.4	11.4	12.0
Kiev	1824	1132	160	46	1338	8982	692	127	9801	7602	12.1
Papeete	7124	707	207	391	1305	10080	1688	1739	13507	11212	6.8	7.9	8.5
Simeiz	1873	964	224	96	1284	12338	1710	495	14543	11926		11.1	14.2
Concepcion_847	7405	805	249	76	1130	7292	2355	437	10084	12395	8.3	15.8	17.1
Baikonur	1887	73	461	555	1089	746	3861	2001	6608	12329		3.8	4.1
Komsomolsk	1868	39	93	867	999	270	449	2639	3358	1605
Zelenchukskya	1889	213	149	523	885	2163	1121	1711	4995	4851		30.6	15.3
San_Fernando	7824	789	1		790	9575	1		9576	6138
Svetloe	1888	592	136	28	756	6336	861	135	7332	6713		9.0	6.3
Koganei	7308	275	120	237	632	3738	924	1346	6008	5065	22.8	18.4	22.4
Riga	1884	169	2		171	2529	7		2536	1460

 

 

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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	89	365	57	32.8
McDonald	7080	7	15
Matera_MLRO	7941	6	10	5	34.1

 

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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 quarter
• the second AC column is the measure of short term bias stability, in millimeters, during the last quarter. 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 quarter 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	4.0	19.9	2.1	99.9	2.0	8.1	1.0	100.0	2.2	16.0	2.5	99.6	2.1	14.4	3.4	98.5	1.7	12.5	1.8	93.2
Changchun	7237	5.2	25.4	4.9	99.4	3.8	21.2	3.9	99.7	1.6	27.7	4.1	97.7	3.7	19.0	12.3	97.9	1.9	28.8	11.5	90.6
Zimmerwald_532	7810	3.7	16.4	2.9	99.9	1.6	7.0	1.0	99.8	1.9	11.9	2.8	99.8	2.8	8.3	2.6	97.3	1.9	10.0	3.0	94.6
Wettzell	8834	3.1	14.3	2.1	100.0	1.8	7.3	3.0	100.0	1.5	13.7	4.5	100.0	2.2	8.5	4.8	97.6	1.5	11.3	4.5	94.5
Mount_Stromlo_2	7825	4.8	21.1	2.0	100.0	3.3	9.3	1.5	100.0	2.9	16.2	3.0	98.9	4.1	11.7	2.8	95.0	2.9	12.6	2.2	92.6
Graz	7839	3.2	16.6	2.6	100.0	0.9	7.0	1.8	100.0	0.5	12.2	5.6	100.0	1.8	10.6	3.8	97.5	0.9	10.8	2.6	97.0
Herstmonceux	7840	3.6	18.1	3.3	100.0	1.8	8.0	1.2	100.0	1.7	13.0	2.6	99.8	2.7	10.3	1.7	96.5	1.5	13.0	2.5	96.5
Greenbelt	7105	4.6	17.3	5.9	99.8	2.2	7.4	2.0	99.7	2.2	15.7	3.5	98.6	2.4	19.4	7.5	96.9	1.8	11.6	2.6	90.2
Matera_MLRO	7941	3.6	23.2	3.5	100.0	1.1	8.0	2.5	100.0	1.2	13.6	3.5	100.0	1.9	15.7	4.0	99.6	2.3	29.1	6.1	97.9
Monument_Peak	7110	6.6	24.4	4.2	99.9	3.1	14.9	2.2	99.6	3.3	23.6	3.9	98.2	3.4	17.7	3.3	95.1	2.4	16.0	1.9	92.6
Shanghai_2	7821	3.9	30.9	14.6	100.0	2.0	18.3	14.1	100.0	1.2	25.7	23.1	99.4	3.1	22.9	14.1	100.0	1.5	28.3	12.4	90.2
Hartebeesthoek	7501	4.4	24.8	4.0	99.9	2.2	10.4	3.0	99.9	2.5	19.7	4.5	98.9	2.5	24.0	6.5	97.9	2.2	18.2	4.7	90.4
Potsdam_3	7841	3.3	12.8	4.0	99.7	1.7	13.6	2.3	99.9	1.6	13.0	4.6	99.5	2.2	10.2	3.1	97.0
San_Juan	7406	8.3	35.5	36.3	99.6	5.1	26.3	21.1	98.9	4.7	35.5	16.0	93.6	6.1	22.3	7.0	95.6	5.9	30.1	13.9	92.2
Arequipa	7403	4.9	23.4	7.4	99.3	2.2	28.1	11.9	99.2	1.7	29.5	10.7	96.4	3.1	30.9	9.3	100.0
Grasse_MEO	7845	4.8	18.9	3.2	100.0	2.5	18.2	2.8	99.6	2.8	19.1	2.5	97.9	3.2	12.2	3.5	96.3	1.9	15.3	3.3	93.7
Arkhyz	1886	10.6	32.8	14.0	100.0	4.6	38.6	18.1	100.0	4.5	53.7	20.3	97.3	6.6	11.8	15.9	100.0
Simosato	7838	7.9	26.4	10.4	99.9	3.8	18.0	6.8	99.6	4.4	19.4	7.6	96.7	4.6	21.0	7.8	98.6	5.5	15.7	6.3	95.2
Beijing	7249	11.8	25.1	9.8	97.8	10.7	29.9		100.0	3.6	21.5	10.8	85.0
Katzively	1893	15.3	20.1	6.1	94.8	14.6	25.0	6.3	97.8	7.1	21.8	8.2	80.2	10.2	31.1	26.5	87.9	14.8	26.8	14.0	94.9
Altay	1879	18.5	49.9	21.5	100.0					1.3	10.5	6.9	39.3	4.3	12.0	17.0	98.4
Badary	1890	7.6	20.9	8.4	100.0	5.3	11.7	6.7	99.6	4.0	19.2	12.9	95.5	4.6	18.8	10.2	96.1
Haleakala	7119	6.6	23.1	8.1	99.3	3.8	10.0	2.7	98.8	4.1	17.4	5.6	95.7	5.8	22.9	14.2	98.2
Kunming	7820	7.5	62.4	33.6	100.0	4.8	21.2	29.5	100.0	3.2	60.3	41.4	97.2
McDonald	7080	4.9	20.8	5.3	100.0	3.1	13.1	2.6	100.0	3.0	14.2	5.2	99.1	3.2	20.5	7.5	96.5	3.1	16.1	6.6	93.9
Papeete	7124	3.9	13.0	6.6	100.0	1.9	9.1	4.1	100.0	2.2	15.9	5.1	100.0	3.7	18.2	9.8	100.0
Simeiz	1873					23.4	36.2	22.9	100.0	4.8	37.5	13.2	58.2
Concepcion_847	7405	6.8	55.3	21.6	100.0	2.2	58.3	20.7	100.0	2.2	40.3	50.7	100.0	2.6	22.8	15.9	100.0
Zelenchukskya	1889	4.8	18.4	6.2	100.0	3.8	9.7	5.2	99.2
Svetloe	1888	7.0	19.9	8.6	99.1	12.0	15.4	5.4	99.8	3.6	17.2		91.2	4.8	10.7	12.9	98.1