International Laser Ranging Service

SLR Global Performance Report Card

March 1, 2011 through February 29, 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	11535	2090	4014	17639	195060	23316	20765	239141	197214	5.7	7.9	9.1
Zimmerwald_532	7810	8757	1672	4614	15043	149923	24603	26671	201197	216595	4.8	8.4	10.7
Graz	7839	4956	748	2291	7995	85621	6766	14772	107159	99326	2.5	3.6	5.1
Matera_MLRO	7941	4754	1488	1565	7807	61999	15868	10697	88564	104406	1.4	3.1	5.3
Changchun	7237	5070	672	1587	7329	46356	4001	6884	57241	44821	4.8	9.6	12.6
Herstmonceux	7840	3921	786	1968	6675	56097	8837	6912	71846	63523	6.2	11.9	12.1
Mount_Stromlo_2	7825	5100	796	292	6188	50315	5525	1221	57061	37450	5.8	6.2	10.9
Greenbelt	7105	4799	636	572	6007	90270	5808	2756	98834	51669	12.3	10.3	10.7
Wettzell	8834	3718	859	851	5428	38089	6493	4074	48656	46430	4.9	11.6	15.5
San_Juan	7406	2949	574	866	4389	44794	7516	6931	59241	56655	5.5	10.9	9.5
Monument_Peak	7110	3002	649	653	4304	53293	6868	3535	63696	45726	6.6	10.4	12.1
Hartebeesthoek	7501	2741	723	479	3943	41309	8175	3542	53026	47161	6.6	13.8	12.6
Riga	1884	2601	216	4	2821	51037	1950	22	53009	22761	1.8	13.1	13.6
Potsdam_3	7841	2268	357	126	2751	41993	4037	985	47015	24686	8.2	12.2	14.7
San_Fernando	7824	2324	237	18	2579	27081	1099	49	28229	13535	6.9	13.5	18.3
Arequipa	7403	2078	155		2233	28264	1160		29424	12102	4.8	21.4	12.8
Katzively	1893	1500	295	237	2032	20204	2396	1567	24167	17898	34.3	45.2	38.4
Grasse_MEO	7845	853	541	612	2006	27608	6556	2806	36970	32072	7.8	15.2	15.4
Haleakala	7119	1533	399		1932	25590	4797		30387	20005	4.0	8.4	10.7
Shanghai_2	7821	1271	228	398	1897	12374	1208	2029	15611	15871	6.1	11.3	12.3
Simosato	7838	1215	441	185	1841	35043	11662	1982	48687	45795	5.3	8.2	9.5
Concepcion_847	7405	1033	543	182	1758	11115	5891	1176	18182	21420	6.4	15.4	16.1
McDonald	7080	1102	449	168	1719	10960	3754	628	15342	14917	7.5	11.4	12.6
Altay	1879	288	414	871	1573	2777	2679	3086	8542	15681			7.3
Simeiz	1873	1092	299	14	1405	14403	2306	96	16805	9449		57.5	52.3
Kiev	1824	977	192	98	1267	7434	902	292	8628	5913	13.6	20.6	31.4
Koganei	7308	380	172	319	871	4707	1292	2413	8412	12829	7.6	10.8	13.9
Papeete	7124	519	147		666	9146	2016		11162	7473	4.9	7.8	12.0
Komsomolsk	1868	67	173	394	634	501	1108	1357	2966	7505			20.2
Tanegashima	7358	198	14	28	240	2127	109	424	2660	3126	2.4	17.6	10.9
Arkhyz	1886	26	68	86	180	479	760	435	1674	3857
Beijing	7249	125	14	1	140	1655	114	8	1777	843
FTLRS_Tahiti	7822	69	16		85	1317	141		1458	726
Zelenchukskya	1889	15	27	21	63	153	186	93	432	695		25.7	28.3
Badary	1890	20	18	4	42	267	131	21	419	518			38.2
Svetloe	1888	12	17	5	34	99	146	15	260	515			32.0
Koganei	7328	26	1		27	335	5		340	120
Helwan	7831	2			2	12			12	6

 

 

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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	17	34	14	46.0
Grasse_MEO	7845	8	34
Matera_MLRO	7941	2	5	3	52.5

 

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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					2.3	9.5	4.1	100.0	4.6	24.7	3.8	99.2	2.9	15.3	2.6	97.2	2.2	12.6	2.4	95.8
Zimmerwald_532	7810					1.2	5.7	4.4	100.0	2.6	20.0	7.0	99.5	2.4	9.6	2.3	98.7	1.6	9.2	3.2	96.0
Graz	7839					1.2	6.8	6.7	99.9	3.2	23.1	7.5	99.7	2.3	13.6	2.6	96.6	1.1	9.5	6.1	97.2
Matera_MLRO	7941					1.8	7.9	4.9	99.8	3.2	29.3	5.9	97.4	2.4	13.8	3.2	99.1	2.4	30.0	8.5	97.1
Changchun	7237					3.2	19.1	6.0	99.8	3.3	26.3	4.2	95.8	3.1	20.7	12.7	97.1	1.9	22.8	22.8	94.9
Herstmonceux	7840					1.7	5.8	3.2	100.0	3.3	23.5	4.9	99.9	3.0	8.6	2.8	98.2	2.4	10.3	5.3	96.8
Mount_Stromlo_2	7825					2.8	12.4	4.7	100.0	2.1	16.2	11.3	82.6	323.4	7.8	6.0	92.7	4.1	14.2	5.4	95.2
Greenbelt	7105					2.6	10.7	3.4	99.9	5.2	26.2	3.9	97.8	2.9	19.0	5.6	97.0	2.2	14.0	4.3	95.4
Wettzell	8834					2.2	11.0	4.0	100.0	3.2	18.4	5.6	100.0	2.6	11.7	5.5	99.6	1.5	16.0	4.8	96.5
San_Juan	7406					4.3	32.5	11.6	99.8	5.4	33.3	7.5	93.8	5.6	21.2	7.1	98.6	5.7	24.1	11.9	95.7
Monument_Peak	7110					1.8	20.5	6.4	100.0	5.0	31.4	5.9	97.5	2.1	22.1	8.3	99.0	1.5	19.4	6.5	96.3
Hartebeesthoek	7501					1.7	10.6	3.8	99.4	3.7	37.8	7.0	100.0	3.6	21.6	8.4	100.0
Riga	1884					11.8	34.8	22.1	98.9					11.2	30.4	29.1	85.3
Potsdam_3	7841					1.8	9.5	7.9	99.9	4.1	26.0		99.8	2.1	10.0	4.6	97.8
San_Fernando	7824					5.5	18.7	7.2	99.6	4.6	24.5	11.7	96.7	5.9	20.4	10.4	98.4	5.1	21.5		97.8
Katzively	1893					8.7	22.4	16.0	98.3	8.1	25.4	7.7	82.8	8.9	25.0	16.0	91.5	9.4	24.2	20.7	93.8
Grasse_MEO	7845					2.9	18.1	15.8	99.9	3.9	25.3	8.0	99.9	3.4	14.3	8.7	95.6	2.5	16.2	6.2	94.2
Haleakala	7119					2.0	8.8	3.6	100.0	3.8	20.9	4.6	98.0	3.4	18.9	8.9	99.1	3.9	27.8		96.1
Shanghai_2	7821					5.3	12.0	14.7	100.0	4.3	18.4	13.7	100.0	4.9	16.6	15.5	99.4	3.9	23.2	23.1	98.8
Simosato	7838					2.6	14.7	4.2	99.8	5.2	23.2	7.0	96.0	4.9	18.6	6.4	99.4	4.7	17.7	8.0	94.2
Concepcion_847	7405					1.7	25.1	4.9	100.0	3.9	27.2	8.9	96.9	3.0	32.8	6.5	99.5
McDonald	7080					2.6	10.2	2.6	100.0	5.4	24.4	8.3	98.1	3.0	16.2	9.4	96.3	2.2	13.9	6.3	96.3
Altay	1879													7.6	31.6	12.0	90.2
Simeiz	1873					84.9	45.8	16.4	97.8					57.6	58.5	31.9	81.7
Kiev	1824					15.3	35.4	25.7	92.5	4.3	36.2	16.0	67.0	12.4	34.1	29.3	94.2
Koganei	7308					3.0	59.8	30.3	99.7	4.2	25.9	27.0	28.0	4.0	36.8	36.5	97.3
Papeete	7124					2.2	9.1	10.4	100.0					3.2	13.4	7.9	100.0
Komsomolsk	1868													9.0	36.1	15.0	91.6
Arkhyz	1886													6.9	28.1	9.6	94.4