International Laser Ranging Service

SLR Global Performance Report Card

March 1, 2015 through February 29, 2016

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	14396	2911	7247	24554	282562	25462	25846	333870	188183	5.4	7.9	8.5
Changchun	7237	10542	1310	7773	19625	85823	6980	19975	112778	55880	3.4	7.6	10.4
Mount_Stromlo_2	7825	6578	1257	2568	10403	95802	10456	11057	117315	80056	3.4	5.4	7.8
Greenbelt	7105	6277	1146	1763	9186	119074	10578	6207	135859	79677	4.1	7.6	11.0
Graz	7839	4090	719	3362	8171	78277	4800	16633	99710	53359	2.1	4.0	5.1
Zimmerwald_532	7810	4312	756	2668	7736	72013	8320	18710	99043	60501
Herstmonceux	7840	3786	779	3017	7582	49736	7454	9614	66804	42673	3.5	9.0	12.5
Matera_MLRO	7941	3153	1365	2849	7367	35695	11850	10910	58455	58030	1.2	2.6	4.4
Monument_Peak	7110	4870	857	1027	6754	89205	7046	2907	99158	58911	5.4	7.9	10.4
Wettzell	8834	2842	295	2367	5504	25390	1957	9752	37099	21259	7.3	11.9	15.1
Hartebeesthoek	7501	2353	678	559	3590	39843	6679	3221	49743	40514	7.8	17.3	19.0
Potsdam_3	7841	2727	268	289	3284	45789	2602	1778	50169	28580	7.2	10.4	13.0
Badary	1890	2581	208	318	3107	28018	1671	1192	30881	18654	-0.1	33.0	32.0
Shanghai_2	7821	1326	222	1468	3016	10263	1523	5945	17731	9991	7.4	9.9	8.7
Arequipa	7403	2451	169		2620	27176	983		28159	18234	6.5	13.5	6.2
Altay	1879	309	216	1954	2479	2583	1192	7138	10913	5810		25.9	29.6
San_Fernando	7824	2239	178	54	2471	21561	923	165	22649	12784	6.0	12.0	33.8
Haleakala	7119	1702	550		2252	24660	5536		30196	29298	5.1	8.6	10.1
Komsomolsk	1868	144	182	1820	2146	1291	1038	6200	8529	4270		28.4	29.1
Svetloe	1888	1217	417	491	2125	13907	3810	1378	19095	19159	-0.1	30.2	32.0
Simeiz	1873	1355	208	162	1725	16266	1379	774	18419	11230		10.2	11.9
Arkhyz	1886	386	178	1096	1660	2313	714	3976	7003	3802		34.2	32.3
Papeete	7124	869	256	521	1646	13795	2171	1957	17923	14219	8.0	8.0	9.0
Simosato	7838	1248	316	32	1596	23822	4938	259	29019	30462	6.0	9.8	16.2
Katzively	1893	1332	121		1453	13716	746		14462	9350
Zelenchukskya	1889	620	180	591	1391	5709	1463	1808	8980	7840	-0.1	25.7	39.6
Irkutsk	1891	169	281	723	1173	2031	3157	2278	7466	11187	-0.1	33.1	49.1
Brasilia	7407	10	260	799	1069	31	840	3085	3956	2526	27.4		25.5
Wettzell	7827	399	73	480	952	4930	588	1669	7187	3914	8.1	11.0	10.9
Kiev	1824	763	92		855	4769	415		5184	3862	11.2	19.4	19.0
Grasse_MEO	7845	358	274	48	680	13845	3545	209	17599	15203	7.9		14.0
Mendeleevo	1874	144	107	361	612	2273	1466	1173	4912	5635	-0.1		30.4
Beijing	7249	236	50	225	511	2555	375	893	3823	2268
Baikonur	1887	43	143	288	474	241	934	917	2092	3013
McDonald	7080	284	101	80	465	2628	751	229	3608	3817

 

 

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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	48	124
Matera_MLRO	7941	7	15
McDonald	7080	1	2

 

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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 3 months
• the second AC column is the measure of short term bias stability, in millimeters, during the last 3 months. 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 the last 3 months 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	3.8	20.7	2.7	100.0	1.9	7.4	1.7	100.0	2.2	16.1	2.0	99.7	2.5	14.2	2.6	98.4
Changchun	7237	5.4	37.0	5.8	100.0	4.0	22.1	5.8	100.0	2.2	29.1	7.5	97.8	3.5	20.1	14.6	96.0
Mount_Stromlo_2	7825	3.1	15.1	2.9	100.0	2.4	7.9	1.7	100.0	1.9	16.9	2.7	99.8	2.9	13.7	11.2	97.8
Greenbelt	7105	3.0	13.8	5.9	100.0	2.2	11.2	8.4	100.0	2.2	17.7	7.8	99.5	2.5	17.6	9.0	97.7
Graz	7839					1.5	7.1	2.7	100.0	1.1	14.0	5.3	100.0	1.6	9.6	10.8	98.6
Herstmonceux	7840					1.2	8.4	1.9	100.0	0.8	14.9	3.6	98.7	1.6	9.8	2.2	99.7
Matera_MLRO	7941	2.6	23.2	5.9	100.0	1.2	10.3	3.0	100.0	1.3	13.4	6.8	100.0	1.6	12.8	4.1	99.4
Monument_Peak	7110	3.9	17.3	3.0	100.0	2.6	14.5	3.3	99.6	2.6	22.4	8.1	98.5	2.6	16.0	6.5	95.6
Wettzell	8834									3.1	17.1	4.6	100.0	3.1	11.2	9.7	92.3
Hartebeesthoek	7501					2.8	10.3	2.3	100.0	3.4	17.7	7.3	99.2	2.6	16.2	3.9	95.9
Potsdam_3	7841					1.6	5.4	2.9	100.0	1.8	7.8	4.1	98.6	2.7	11.0	5.4	96.5
Shanghai_2	7821					1.5	9.7	4.3	100.0	1.1	16.3	8.9	100.0	2.1	13.8	12.9	100.0
Altay	1879									3.5	34.4	10.9	96.7	5.7	36.6	11.9	95.2
Haleakala	7119	4.0	29.4	4.8	100.0	1.7	11.7	3.3	100.0	2.4	17.0	3.9	98.3	3.5	20.4	6.3	98.5
Komsomolsk	1868									2.8	53.5	32.6	100.0	3.1	22.3	27.4	98.7
Svetloe	1888					9.0	28.0	6.0	98.4	3.9	24.2	14.6	86.0	8.7	16.7	6.6	98.7
Arkhyz	1886					3.8	32.2	8.5	100.0	3.9	34.9	24.2	97.0	6.0	18.4	12.9	96.6
Papeete	7124									2.9	20.3	6.1	98.5	3.4	33.9	10.3	100.0
Simosato	7838					3.4	10.8	5.8	100.0	3.5	20.0	6.2	98.5	4.2	14.7	28.8	99.8
Zelenchukskya	1889					3.1	18.3	7.4	100.0	2.6	23.4	8.1	90.9	5.4	23.6	10.1	98.1
Irkutsk	1891					10.0	18.4		100.0	3.8	21.0		92.3	5.7	22.3	4.5	96.7
Brasilia	7407					2.8	10.8	7.9	100.0	2.4	34.5	14.0	96.9	4.3	14.9	14.4	96.3
Wettzell	7827					1.2	6.6		100.0	1.1	13.5		100.0	1.5	11.8		99.1
Grasse_MEO	7845					2.4	18.0	1.4	100.0	2.5	20.6	6.6	100.0	2.9	11.8	9.6	98.5