International Laser Ranging Service

SLR Global Performance Report Card

September 1, 2011 through August 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	11015	2017	5697	18729	188422	23854	26903	239179	185456	5.7	7.8	9.3
Zimmerwald_532	7810	8708	1503	5490	15701	154629	23651	29870	208150	192372	4.4	8.6	10.8
Matera_MLRO	7941	4744	1580	2037	8361	59717	16880	10822	87419	92847	1.3	3.3	5.1
Changchun	7237	4943	663	2236	7842	45224	3842	9053	58119	43227	10.4	12.4	16.7
Graz	7839	4298	697	2762	7757	72499	5621	16298	94418	82371	2.4	3.5	5.1
Greenbelt	7105	5705	793	1003	7501	102806	7115	4336	114257	69959	12.9	8.7	10.4
Wettzell	8834	4637	818	1200	6655	48780	5859	5631	60270	49349	5.9	10.8	14.1
Mount_Stromlo_2	7825	5103	860	521	6484	70926	7956	2535	81417	63745	3.5	6.2	9.0
Herstmonceux	7840	3474	754	1938	6166	49417	8659	6611	64687	58193	5.4	8.3	8.6
San_Juan	7406	3584	769	1344	5697	80022	13759	14017	107798	88693	5.9	9.9	8.8
Monument_Peak	7110	3132	727	687	4546	55467	7149	3098	65714	49699	8.3	13.1	15.3
Hartebeesthoek	7501	2926	770	589	4285	42565	8307	3245	54117	46648	5.5	10.8	12.6
Potsdam_3	7841	3200	479	207	3886	54377	5224	1595	61196	37141	8.0	12.5	14.9
San_Fernando	7824	3040	248	19	3307	35805	1105	53	36963	20931	5.8	13.2	16.0
Arequipa	7403	2804	419		3223	37622	3134		40756	29057	5.3	11.8	9.5
Haleakala	7119	2259	612		2871	38097	6629		44726	36459	4.1	10.4	12.3
Concepcion_847	7405	1689	737	403	2829	17730	8096	2622	28448	36472	6.8	16.1	16.7
Katzively	1893	1855	339	346	2540	36323	3378	3148	42849	31758	32.8	63.5	37.5
Grasse_MEO	7845	939	493	713	2145	29161	5866	3154	38181	29724	12.0	16.3	17.8
Shanghai_2	7821	1037	203	547	1787	9558	1039	2338	12935	11449	4.2	9.4	11.2
Simosato	7838	992	408	165	1565	26052	9837	1747	37636	41855	6.0	8.2	10.3
McDonald	7080	892	407	211	1510	8858	3215	843	12916	14167	6.8	11.5	12.4
Simeiz	1873	990	292	69	1351	11644	2114	422	14180	11527		41.9	42.6
Altay	1879	257	336	743	1336	2274	2085	2451	6810	10238		28.3	14.2
Kiev	1824	989	191	70	1250	7069	878	206	8153	6076	15.1	11.1	11.8
Koganei	7308	521	213	402	1136	6610	1599	3003	11212	14331	8.3	11.0	14.3
Riga	1884	981	120	2	1103	14751	1014	14	15779	9123	9.6	11.9	8.7
Papeete	7124	736	235	117	1088	12498	2776	477	15751	12789	7.6	8.3	8.9
Beijing	7249	450	84	89	623	9191	1140	879	11210	9345	9.2	13.7	17.8
Baikonur	1887	177	237	154	568	1519	1455	475	3449	5884		17.8	16.6
Badary	1890	427	94	44	565	7118	996	202	8316	7214		38.7	39.9
Komsomolsk	1868	34	125	314	473	227	764	847	1838	3166			10.1
Zelenchukskya	1889	124	83	230	437	1838	636	921	3395	3310		21.8	24.0
Arkhyz	1886	107	93	97	297	1106	888	467	2461	4655		24.5	21.6
Tanegashima	7358	206	12	18	236	2098	54	327	2479	2507
Svetloe	1888	123	65	13	201	1268	370	43	1681	1862		22.7	30.3
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	8	18	2	49.0
Matera_MLRO	7941	8	16	12
Grasse_MEO	7845	1	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	4.0	21.5		100.0	1.9	9.6	1.6	100.0	3.1	13.7	3.1	98.5	2.3	17.4	1.7	97.9	1.4	14.0	2.7	91.6
Zimmerwald_532	7810	3.1	17.5		99.9	1.2	6.2	1.5	99.9	2.0	10.9	4.2	99.9	2.5	15.3	2.6	97.7	1.3	10.0	1.7	95.4
Matera_MLRO	7941	3.1	17.6		99.9	1.3	8.0	1.5	99.9	2.0	13.3	5.4	99.8	2.2	17.0	4.0	99.1	2.0	31.6	7.1	98.2
Changchun	7237	6.6	34.0		98.2	5.5	31.7	11.7	99.0	2.9	28.6	10.5	92.1	5.4	32.6	13.6	94.6
Graz	7839	2.5	14.7		100.0	0.9	5.6	1.9	100.0	1.6	8.9	6.7	99.6	2.0	13.7	3.3	97.1	0.9	11.1	5.7	96.7
Greenbelt	7105	4.7	22.4		99.0	3.0	10.2	2.9	99.6	3.5	12.8	3.8	98.8	6.2	14.2	5.8	98.0	2.5	13.5	4.5	90.0
Wettzell	8834	3.1	18.8		100.0	1.9	8.3	3.4	100.0	2.1	14.0	5.2	99.7	1.9	13.5	4.4	98.3	1.0	11.5	3.0	92.8
Mount_Stromlo_2	7825	4.3	20.2		100.0	3.0	11.0	3.4	100.0	4.4	15.8	12.1	99.0	3.9	11.7	5.4	95.3	2.9	13.0	4.3	94.4
Herstmonceux	7840	3.2	12.6		100.0	1.5	5.7	1.1	100.0	2.0	13.9	4.9	100.0	2.5	14.0	2.3	97.7	1.2	10.6	4.9	95.3
San_Juan	7406	8.4	38.4		98.4	3.5	34.1	16.2	99.6	5.7	35.2	11.1	91.1	4.5	24.0	8.3	96.9	3.4	29.2	12.1	92.7
Monument_Peak	7110	6.0	26.2		99.8	2.7	20.6	22.0	99.8	5.4	26.2	5.9	95.4	292.0	21.7	15.4	96.1	3.1	16.4	6.0	91.3
Hartebeesthoek	7501	4.1	21.5		99.7	1.9	12.5	17.4	99.8	3.3	16.8	16.5	99.1	2.4	20.8	16.5	98.0	2.1	17.9	24.7	93.0
Potsdam_3	7841	4.3	17.3		99.8	2.0	5.9	4.3	99.8	2.7	14.5	5.0	98.4	2.1	9.7	5.0	96.5
San_Fernando	7824	5.3	25.2		100.0	3.7	11.4	8.9	100.0	2.9	16.0	10.1	97.4	4.1	12.7	11.0	100.0	3.8	26.2	12.9	98.2
Arequipa	7403	4.4	27.3		99.1	2.0	25.5		99.7	4.8	25.2		98.2	3.3	18.4		96.4	1.6	14.5		92.5
Haleakala	7119	4.1	23.1		99.8	2.0	9.6	3.2	99.7	2.8	11.3	4.9	98.1	2.7	25.0	8.2	99.3
Concepcion_847	7405	5.0	31.3		98.9	1.6	38.2	4.4	100.0					2.6	35.6	5.6	99.9
Katzively	1893	12.4	23.4		98.8	8.2	17.6	7.0	97.9	7.0	14.2	6.0	87.7	7.6	16.1	11.3	90.9
Grasse_MEO	7845	4.6	20.1		100.0	2.9	10.1	16.9	100.0	4.0	12.0	7.2	99.4	3.3	15.5	9.7	96.9	2.6	16.7	7.0	94.7
Shanghai_2	7821	2.9	24.1		100.0	1.7	15.9	7.5	100.0	2.1	17.8	11.9	100.0	3.0	21.8	11.2	100.0
Simosato	7838	8.4	29.3		99.9	3.2	16.6	12.1	99.4	5.0	15.5	12.7	96.3	4.1	19.5	12.1	99.7	5.1	18.0	10.8	94.5
McDonald	7080	5.1	21.7		99.0	3.0	11.5	5.6	100.0	4.4	11.1	4.2	98.6	2.8	14.0	8.2	96.7	2.5	15.6	5.2	94.4
Simeiz	1873	31.1	40.1		40.9	70.1	45.2	15.5	98.6					52.4	45.0	27.8	81.5
Altay	1879	18.4	59.4		88.9									4.0	19.2	28.9	98.8
Koganei	7308	35.3	76.9		100.0	7.4	59.6	28.4	100.0					5.8	45.6	30.6	97.6
Papeete	7124	4.2	15.1		99.8	2.1	10.2	3.1	100.0	2.9	17.4	6.3	99.0	2.9	15.1	5.5	99.7	7.2	15.8	22.5	88.7
Beijing	7249	23.6	28.3		100.0	6.8	29.4		100.0	5.4	23.3		93.2	7.3	24.3		97.5
Baikonur	1887	11.9	40.8		94.0					8.2	36.3		84.5	7.1	26.0	7.8	94.0
Arkhyz	1886	10.9	28.1		100.0	9.8	18.4		100.0