International Laser Ranging Service

SLR Global Performance Report Card

June 1, 2011 through May 31, 2012

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	11315	2082	5241	18638	190459	23744	24600	238803	193269	5.8	7.9	9.3
Zimmerwald_532	7810	8367	1543	5245	15155	143605	22581	28558	194744	196756	4.5	8.6	11.1
Graz	7839	4414	736	2741	7891	73187	6019	16416	95622	91183	2.5	3.8	5.1
Greenbelt	7105	5996	814	906	7716	110571	7309	4013	121893	68364	5.7	9.1	10.4
Matera_MLRO	7941	4557	1460	1694	7711	59157	15057	10290	84504	94955	1.3	3.2	5.1
Changchun	7237	4663	632	1824	7119	42778	3729	7726	54233	41318	6.6	11.0	13.8
Herstmonceux	7840	3554	773	1957	6284	49949	8541	6770	65260	59110	6.3	9.4	9.5
Mount_Stromlo_2	7825	4881	776	426	6083	57107	6304	2115	65526	49063	3.4	4.9	6.5
Wettzell	8834	3901	750	1034	5685	39515	5291	4944	49750	45058	5.8	11.6	15.0
San_Juan	7406	3577	738	1214	5529	75679	13816	13381	102876	89398	5.4	10.6	9.1
Hartebeesthoek	7501	3190	865	638	4693	48059	9894	4148	62101	56146	5.9	13.0	11.2
Monument_Peak	7110	2998	711	692	4401	52399	7439	3440	63278	48600	7.4	11.3	13.6
San_Fernando	7824	2913	256	19	3188	34103	1174	50	35327	17999	6.1	12.4	17.4
Potsdam_3	7841	2480	369	138	2987	42226	4016	1070	47312	27371	8.0	12.7	15.0
Haleakala	7119	2125	581		2706	34913	6597		41510	30682	4.2	8.4	11.9
Arequipa	7403	2294	272		2566	30820	1957		32777	17685	4.8	10.5	14.1
Concepcion_847	7405	1487	664	359	2510	15339	7050	2251	24640	30947	5.9	14.8	15.7
Katzively	1893	1555	328	292	2175	21023	2704	2019	25746	20702	34.9	67.7	38.5
Grasse_MEO	7845	800	473	572	1845	24650	5482	2673	32805	26904	11.1	16.8	16.9
Simosato	7838	1147	446	192	1785	32174	11305	2039	45518	46069	5.4	8.0	9.9
McDonald	7080	1003	431	219	1653	10120	3556	869	14545	15070	7.3	13.2	13.4
Riga	1884	1417	162	2	1581	24283	1339	14	25636	12636	7.6	12.6	19.5
Shanghai_2	7821	932	193	373	1498	9073	1034	1804	11911	11854	6.0	10.8	12.0
Altay	1879	235	361	740	1336	2179	2301	2545	7025	12147			11.5
Simeiz	1873	935	306	39	1280	11855	2343	251	14449	9811		47.7	45.6
Kiev	1824	969	194	77	1240	7275	896	226	8397	5960	14.9	19.3	26.4
Koganei	7308	440	191	358	989	5545	1420	2747	9712	13299	11.4	11.4	14.2
Papeete	7124	572	201	2	775	9941	2506	9	12456	10211	5.0	8.0	9.2
Komsomolsk	1868	38	160	375	573	265	1003	1077	2345	4902			16.9
Beijing	7249	362	68	63	493	8265	988	741	9994	8196	6.9	12.1	15.8
Badary	1890	293	73	31	397	5012	794	147	5953	5311		41.0	42.7
Tanegashima	7358	241	13	23	277	2445	60	397	2902	2975	2.5	18.4	16.3
Zelenchukskya	1889	79	50	117	246	1226	349	565	2140	2048		21.6	27.1
Arkhyz	1886	69	79	95	243	770	829	462	2061	4287		15.6	15.4
Svetloe	1888	93	54	13	160	1018	330	43	1391	1605			35.0
Baikonur	1887	68	58		126	488	488		976	1952		15.5	12.7
FTLRS_Tahiti	7822	69	16		85	1317	141		1458	726
Helwan	7831	2			2	12			12	6
Koganei	7328	1			1	5			5	1

 

 

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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
McDonald	7080	11	25	2	31.2
Grasse_MEO	7845	2	12
Matera_MLRO	7941	1	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 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	3.5	18.2		100.0	1.8	7.8	1.3	100.0	2.9	10.3	3.8	99.8	2.4	14.9	2.0	98.7	1.6	11.8	2.6	94.3
Zimmerwald_532	7810	2.3	13.0		99.9	1.2	6.6	1.4	99.9	1.8	8.9	4.2	99.9	2.2	10.9	2.7	98.9	1.2	9.1	3.4	96.2
Graz	7839	1.9	12.5		100.0	1.0	6.1	1.7	100.0	1.0	7.3	7.8	100.0	1.6	10.6	2.7	99.2	0.6	7.6	5.9	96.9
Greenbelt	7105	4.8	17.9		99.6	2.5	9.6	2.7	99.7	3.2	11.4	3.7	97.9	3.2	18.2	5.3	96.2	2.1	16.3	4.8	94.1
Matera_MLRO	7941	2.5	11.3		100.0	1.5	8.5	1.1	99.7	2.3	10.2	5.6	99.5	2.3	15.8	4.0	99.1	2.8	31.0	7.2	98.4
Changchun	7237	4.3	33.3		100.0	3.1	29.3	7.3	99.4	3.2	28.6	6.5	99.3	5.4	35.3	14.6	97.9	1.4	24.5	16.4	96.6
Herstmonceux	7840	2.8	9.1		100.0	1.8	6.9	1.5	100.0	2.2	10.0	4.6	99.9	2.6	8.7	2.9	97.5	1.5	11.0	5.4	95.4
Mount_Stromlo_2	7825	5.0	25.5		99.0	2.7	12.4	3.4	100.0	3.2	13.6	11.9	98.0	3.4	18.4	5.2	97.6	2.1	13.0	5.0	95.8
Wettzell	8834	2.9	13.3		100.0	2.0	8.7	3.2	100.0	2.2	10.4	4.8	100.0	2.2	10.1	4.4	98.2	1.1	12.2	3.1	95.1
San_Juan	7406	9.4	30.0		100.0	5.0	29.7	12.8	99.1	4.9	33.8	9.6	89.3	5.4	21.3	7.4	96.0	4.7	33.4	11.3	93.4
Hartebeesthoek	7501	4.3	15.0		99.9	2.0	31.4	16.1	100.0	3.3	17.0	16.3	99.2	2.4	32.2	14.7	98.3	2.2	22.5	24.3	95.3
Monument_Peak	7110	4.1	20.3		100.0	2.0	20.0	22.9	100.0	3.8	17.4	5.6	99.5	3.0	25.2	15.4	97.1	2.1	17.8	6.5	93.7
San_Fernando	7824					4.3	13.4	7.2	100.0	4.2	18.3	10.6	100.0
Potsdam_3	7841	3.4	12.7		99.6	1.9	9.0	4.3	99.8	3.5	8.5		99.5	2.4	11.8	5.5	96.6
Haleakala	7119	3.9	23.0		100.0	2.5	11.9	3.2	99.7	3.3	11.1	4.5	98.8	4.0	29.8	8.2	98.6	7.7	35.2	9.5	93.5
Arequipa	7403	19.2	46.2		99.2	2.2	25.5		99.6	4.3	21.5		97.4	3.1	15.2		98.3	1.6	13.7		92.6
Concepcion_847	7405					1.6	33.4	4.1	100.0	4.6	27.7		99.0	2.4	29.8	6.0	100.0
Katzively	1893					9.5	22.7	7.1	98.3	5.0	10.2	7.3	82.6	10.8	17.7	11.7	89.4	9.7	16.8	10.1	95.3
Grasse_MEO	7845	4.2	14.3		100.0	2.8	15.0	16.4	100.0	4.0	11.9	8.7	99.6	2.9	13.1	9.5	97.7	2.1	11.9	6.2	94.8
Simosato	7838	7.7	19.3		100.0	2.8	13.4	12.3	99.8	5.0	16.9	12.9	97.8	5.0	18.8	12.8	99.6	4.2	13.6	10.3	95.2
McDonald	7080	3.9	17.0		100.0	3.0	8.7	3.0	99.8	3.0	7.7	8.1	94.2	3.3	17.9	9.2	96.6	2.2	14.5	4.9	94.4
Riga	1884					15.1	29.5	21.9	99.0					8.8	36.7	25.0	94.2	9.6	21.1	13.9	93.2
Shanghai_2	7821					1.9	15.7	14.6	99.1					4.0	28.4	16.1	100.0	1.5	19.2	19.2	92.3
Altay	1879													6.7	27.0	18.2	96.9
Simeiz	1873					73.2	47.8	15.7	96.1					225.7	34.2	26.6	78.3	31.3	23.3	16.9	63.4
Kiev	1824					11.1	25.5	13.4	96.5	5.2	30.3	13.1	62.8	13.8	18.0	14.5	90.3
Koganei	7308													3.3	30.7	33.5	99.0
Papeete	7124	4.1	17.8		100.0	2.1	11.6	3.0	100.0	3.0	14.1	6.8	100.0	2.9	23.0	5.8	100.0	5.8	19.9		97.3
Komsomolsk	1868													8.8	39.4	13.7	89.6
Beijing	7249	9.4	30.9		100.0					3.5	29.8		89.2
Baikonur	1887	12.8	36.1		99.5					5.6	35.0		80.0	7.3	27.3		92.7