International Laser Ranging Service

SLR Global Performance Report Card

May 1, 2014 through April 30, 2015

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	12877	2507	6696	22080	230270	21487	22420	274177	165268	5.9	7.8	9.6
Changchun	7237	9618	1252	6300	17170	82917	7298	17864	108079	57565	9.9	13.1	17.0
Mount_Stromlo_2	7825	7310	1472	4023	12805	105772	14184	15510	135466	99344	3.5	5.3	8.5
Greenbelt	7105	5266	1009	1447	7722	104396	9771	4793	118960	72037	4.3	8.2	11.3
Herstmonceux	7840	3748	795	2688	7231	49055	7476	8480	65011	43526	3.4	9.2	13.0
Monument_Peak	7110	4804	904	1382	7090	87805	8138	3883	99826	62594	4.4	7.4	8.7
Graz	7839	3530	575	2851	6956	65250	3830	14307	83387	44463	2.1	4.0	5.0
Matera_MLRO	7941	2935	1171	2396	6502	33219	9432	8935	51586	49588	1.1	3.1	3.9
Zimmerwald_532	7810	3319	622	2272	6213	53029	8500	17071	78600	51108
Wettzell	8834	2826	422	2090	5338	26425	2969	7798	37192	24156	7.4	10.3	13.5
Hartebeesthoek	7501	2687	875	741	4303	43031	8749	4597	56377	49390	7.8	13.9	16.5
Shanghai_2	7821	1821	373	1592	3786	14271	2281	6791	23343	14539	6.9	7.9	7.5
Badary	1890	2652	313	401	3366	30090	1900	1245	33235	19346		34.0	36.6
Potsdam_3	7841	2630	289	241	3160	44251	2941	1779	48971	29206	7.3	10.6	11.9
Arequipa	7403	2652	258		2910	29088	1641		30729	22341	5.6	9.2	8.0
San_Juan	7406	1667	427	387	2481	28653	4788	2559	36000	29442
Altay	1879	297	253	1916	2466	2863	1434	8143	12440	6414		27.1	28.9
Beijing	7249	1236	281	899	2416	13517	2110	3998	19625	13503	5.4	11.1	14.7
Svetloe	1888	1142	544	491	2177	11864	4619	1668	18151	21710		26.1	32.1
Arkhyz	1886	567	298	1109	1974	3343	1271	4039	8653	6037		33.7	35.4
Komsomolsk	1868	106	158	1602	1866	1177	909	6415	8501	3625		33.8	32.9
Katzively	1893	1550	217	8	1775	14764	1271	43	16078	11885	28.6	10.7	15.1
McDonald	7080	952	343	425	1720	9161	2936	1390	13487	14350	8.8	9.9	11.3
Grasse_MEO	7845	439	406	859	1704	18136	5244	2780	26160	21902	10.0		16.3
Zelenchukskya	1889	576	271	837	1684	5898	2376	2427	10701	10444		23.3	28.5
Haleakala	7119	1291	382		1673	17453	4324		21777	22370	6.2	8.8	11.9
Kiev	1824	1391	255	7	1653	9474	1153	22	10649	8715	15.2	22.9	20.9
Papeete	7124	751	190	475	1416	11839	1688	1931	15458	11343	7.2	7.9	9.3
San_Fernando	7824	1164	136	4	1304	13830	663	16	14509	8684	5.9	12.3	22.6
Baikonur	1887	71	431	676	1178	533	2742	2293	5568	8723			30.2
Simeiz	1873	863	202	101	1166	10537	1338	465	12340	9350		9.9	11.1
Simosato	7838	846	241	44	1131	15687	3856	330	19873	21896	5.7	9.8	14.9
Brasilia	7407	6	171	370	547	48	1165	1580	2793	3504	6.8		25.8
Mendeleevo	1874	116	91	326	533	1909	1191	1109	4209	4508		27.6	34.7
Daedoek	7359	312	60	67	439	4264	565	459	5288	4905
Irkutsk	1891	5	145	241	391	44	1460	841	2345	4424			31.6
Kunming	7820	155	36		191	2148	184		2332	1830
Greenbelt	7125	5	5	4	14	67	28	15	110	116
Concepcion_847	7405	2			2	16			16	16

 

 

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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	125	512	71	34.9
Matera_MLRO	7941	4	11	6	47.0
McDonald	7080	1	2	2	47.7

 

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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	4.3	23.7	2.4	100.0	2.3	9.7	1.5	100.0	2.6	19.2	2.2	99.2	2.4	22.5	2.7	97.4	3.2	16.4	2.1	90.4
Changchun	7237	5.2	24.6	3.4	99.6	3.7	23.8	5.1	99.8	1.8	28.8	4.7	98.0	3.2	16.8	4.8	96.1	1.6	30.1	23.5	92.7
Mount_Stromlo_2	7825	4.3	20.8	1.9	99.8	2.7	14.0	2.0	99.7	2.5	20.7	3.7	97.6	2.9	15.4	6.0	95.9	1.8	11.3	2.8	95.5
Greenbelt	7105	3.5	16.3	3.1	99.9	2.1	8.7	1.7	99.9	2.2	15.8	3.4	99.4	2.3	16.0	6.2	97.9	1.7	15.5	4.8	90.8
Herstmonceux	7840	2.3	14.5	3.6	100.0	1.2	6.7	1.7	100.0	0.9	15.9	2.1	100.0	2.5	11.0	3.0	98.7	1.2	11.6	4.6	96.9
Monument_Peak	7110	4.1	18.8	3.6	99.8	1.9	10.3	2.3	99.7	2.3	17.2	3.7	99.2	3.7	17.5	3.1	98.5	1.9	15.2	4.3	91.6
Graz	7839	2.4	16.6	3.7	100.0	1.3	6.8	2.7	100.0	0.8	13.3	4.4	98.6	2.8	14.6	3.5	95.7	0.8	11.9	6.6	96.1
Matera_MLRO	7941	2.4	17.3	4.0	99.9	1.3	8.2	2.6	100.0	1.5	14.7	3.9	99.8	1.9	14.4	3.2	99.5	1.0	19.5	3.1	95.8
Wettzell	8834	3.1	10.9	4.7	100.0	2.9	7.1	2.8	100.0	2.0	9.8	3.2	100.0	3.0	11.7	3.5	94.5
Hartebeesthoek	7501	5.2	21.0	7.6	99.7	3.4	9.2	3.2	99.7	3.2	16.1	5.3	98.3	3.5	24.3	6.7	94.8
Shanghai_2	7821	2.6	20.5	15.3	98.5	1.1	18.0	9.4	100.0	0.7	17.4	16.4	99.1	2.4	24.5	11.6	100.0	0.5	24.5	14.7	94.7
Badary	1890	8.7	14.7	5.1	99.8	6.8	11.3	5.1	99.9	5.8	29.1	9.1	93.6	6.0	15.7	7.9	94.8	6.6	16.0	14.5	94.7
Potsdam_3	7841	3.5	17.4	3.3	98.4	2.4	10.6	2.3	99.5	2.2	15.4	3.1	98.2	2.7	9.1	3.1	98.1	1.7	12.0	4.4	93.9
Arequipa	7403	3.4	36.0	25.3	100.0	1.9	41.6	21.8	100.0	1.9	38.0	17.7	100.0	2.7	22.1	7.7	100.0
Altay	1879	5.4	26.3	16.6	100.0	3.6	26.4	14.6	100.0	3.3	28.8	14.0	99.1	3.6	22.2	13.4	100.0	2.3	23.8	15.2	96.7
Beijing	7249	6.3	15.9	8.5	99.5	5.8	17.2	5.7	100.0	4.2	20.4	9.9	97.3	5.1	22.7	15.0	95.4	3.7	17.8	9.5	92.3
Svetloe	1888	8.5	20.5	5.6	100.0	6.0	18.6	6.3	100.0	5.6	27.3	13.5	96.1	5.4	16.6	9.5	95.6	7.1	20.5	11.5	97.5
Arkhyz	1886	10.8	29.4	17.0	100.0	8.6	26.4	13.5	100.0	6.6	46.8	19.5	98.8	11.2	26.6	12.6	93.7
Komsomolsk	1868	15.1	51.7	16.2	100.0	5.4	48.9	19.4	100.0	5.5	45.1	31.0	98.8	4.9	32.1	24.5	98.5
Katzively	1893	19.5	21.7	8.5	98.1	12.2	19.4	7.8	94.3	5.7	34.6	9.3	76.8	10.4	30.7	15.5	83.9
McDonald	7080	4.6	25.5	8.4	100.0	3.2	15.4	4.7	100.0	2.8	16.1	6.6	97.7	3.0	23.6	12.2	96.3	2.4	10.9	11.8	96.2
Grasse_MEO	7845	4.4	15.0	5.6	100.0	2.7	14.7	8.2	100.0	3.1	17.8	5.7	99.6	3.2	9.9	9.6	97.2	2.4	15.9	7.4	93.5
Zelenchukskya	1889	6.3	20.3	11.4	100.0	4.0	22.0	6.8	100.0	4.3	19.4	6.9	99.0	5.2	21.9	8.6	98.6	4.1	20.5	10.7	95.9
Haleakala	7119	4.9	30.1	3.8	99.8	2.3	8.7	2.8	99.8	2.3	14.1	2.6	98.9	5.2	28.2	6.1	99.5
Kiev	1824	21.8	44.6	34.5	92.8	13.3	41.7	34.2	88.0	4.1	35.7	31.2	64.5	30.3	42.6	33.9	78.2	16.6	29.8		94.7
Papeete	7124	4.3	18.0	3.8	100.0	2.4	10.1	4.6	100.0	2.7	15.4	7.5	99.2	3.3	30.8	16.5	100.0
San_Fernando	7824	6.4	24.8	39.7	99.7	5.3	13.9	32.3	100.0	3.2	19.2	28.3	97.6	5.3	10.9		98.3
Baikonur	1887	11.0	22.3	13.0	100.0	9.7	19.6	11.5	100.0	5.8	32.8	9.5	88.1	9.4	24.4	9.9	93.1	7.5	23.8	18.2	93.3
Simeiz	1873	25.2	45.7	19.3	89.4	23.5	45.6	12.3	96.4	4.5	46.8	11.2	57.7	23.3	40.9	13.1	90.6
Simosato	7838	5.2	15.9	5.5	100.0	3.3	14.4	5.6	100.0	3.5	13.6	4.2	99.1	4.6	20.1	11.4	98.5	3.9	13.0	6.3	93.7
Brasilia	7407	5.4	26.2	4.3	100.0	5.0	21.9	15.8	100.0					8.4	20.6	12.3	100.0
Mendeleevo	1874	6.6	15.2		99.8									5.5	11.3	11.8	98.5
Kunming	7820	8.4	24.6	38.9	98.4	9.6	53.2	30.8	99.4