International Laser Ranging Service

SLR Global Performance Report Card

June 1, 2016 through May 31, 2017

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		2300	600	3000	3500
Yarragadee	7090	15350	2704	8069	26123	297446	25424	30460	353330	195692	5.9	7.7	8.7
Changchun	7237	8828	1005	6011	15844	74536	6672	16886	98094	51630	5.2	8.1	11.8
Mount_Stromlo_2	7825	6356	1115	2413	9884	93585	9140	8361	111086	71940	3.4	5.2	7.8
Herstmonceux	7840	4600	784	3514	8898	62870	8531	11011	82412	51607	3.6	9.3	14.1
Zimmerwald_532	7810	5305	815	1803	7923	91505	11960	6489	109954	77625	10.7	10.8	13.6
Graz	7839	4002	619	3159	7780	77492	4185	15945	97622	48894	2.1	3.3	5.1
Wettzell	8834	4167	560	2844	7571	35525	3465	11042	50032	29813	6.9	10.7	14.2
Greenbelt	7105	4990	784	860	6634	90102	7303	3501	100906	58318	2.0	5.7	8.6
Monument_Peak	7110	4605	610	750	5965	80988	4511	2168	87667	46655	4.7	7.5	9.8
Matera_MLRO	7941	2759	1081	2074	5914	31778	9656	9450	50884	47256	.9	2.3	3.6
Potsdam_3	7841	4265	478	564	5307	71378	4441	3120	78939	42956	6.8	10.7	12.6
Shanghai_2	7821	2413	415	2367	5195	20606	3843	9931	34380	21723	7.6	9.2	8.6
Wettzell_SOSW	7827	2205	465	2466	5136	20745	2798	7383	30926	17774	7.9	9.8	9.9
Hartebeesthoek	7501	2440	595	452	3487	38337	5365	2099	45801	34950	6.0	9.3	11.2
Haleakala	7119	2335	563		2898	35988	4799		40787	31227	5.2	8.2	10.5
Altay	1879	277	214	2363	2854	3037	1201	8868	13106	5835		31.4	28.3
Komsomolsk	1868	194	174	2122	2490	2247	995	7288	10530	4572		33.6	36.0
Arequipa	7403	2318	105		2423	25115	580		25695	15607	6.5	7.8	12.2
Baikonur	1887	141	409	1786	2336	901	1800	6451	9152	6202		27.6	33.2
Badary	1890	1980	122	117	2219	21463	633	382	22478	10104	-0.1	33.0	26.6
Papeete	7124	1248	224	608	2080	20702	1870	2970	25542	15573	6.6	8.4	8.7
Katzively	1893	1722	193	66	1981	17144	1326	353	18823	12480	28.6	11.7	12.7
Arkhyz	1886	588	234	962	1784	4326	950	3241	8517	5419		30.3	35.8
Beijing	7249	956	119	674	1749	8479	810	2671	11960	6749	11.6	14.4	19.6
Brasilia	7407	449	305	965	1719	1380	1128	3833	6341	4272	31.5	23.8	29.9
Simeiz	1873	1432	158	54	1644	15815	1138	276	17229	11558	32.8	9.8	15.9
Simosato	7838	1230	342	26	1598	21266	5879	142	27287	31164	4.2	8.1	13.2
Grasse_MEO	7845	823	365	36	1224	25985	3795	194	29974	20403	8.6		15.1
Zelenchukskya	1889	745	176	212	1133	7455	1317	807	9579	7573	-0.1	31.1	42.6
Irkutsk	1891	600	172	341	1113	5302	1616	941	7859	8401
Riga	1884	925	105	65	1095	16642	998	333	17973	9557	7.8	14.5	16.1
Borowiec	7811	752	123	20	895	12889	1224	87	14200	9896	11.6	24.3	15.4
Svetloe	1888	710	111	55	876	6885	843	172	7900	5498	-0.1		34.8
Sejong	7394	694	68	13	775	8158	547	56	8761	7453	4.8	10.1	14.4
Mendeleevo	1874	223	89	289	601	4178	1256	1018	6452	5387	-0.1	27.8	34.1
Kiev	1824	538	14		552	3610	53		3663	2400	13.5	22.4	42.6
McDonald	7080	349	34	6	389	2282	99	18	2399	1622	9.2	13.4	15.0

 

 

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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	261	892	303	29.0
Matera_MLRO	7941	1	1	1	37.9

 

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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	3.3	13.3	3.0	100.0	1.9	7.0	1.4	100.0	2.1	13.6	2.6	99.3	2.1	15.9	2.8	98.9	1.8	7.4	1.6	93.2
Changchun	7237	5.0	26.0	5.0	100.0	3.0	29.2	3.8	100.0	2.1	31.6	5.9	96.0	2.9	24.3	3.1	96.8	1.7	26.5	8.5	94.8
Mount_Stromlo_2	7825	2.9	15.6	3.3	100.0	2.3	9.9	2.0	100.0	1.9	13.1	3.3	99.8	2.7	13.7	2.6	98.5	1.7	11.0	2.1	94.9
Herstmonceux	7840	1.8	9.1	2.0	100.0	1.2	7.1	1.7	100.0	1.3	10.1	2.2	100.0	1.7	8.9	2.1	99.1	0.8	6.7	2.9	97.6
Zimmerwald_532	7810	2.7	8.9	3.0	100.0	1.7	7.6	1.2	100.0	1.9	10.4	2.4	99.9	2.9	10.4	1.7	97.2	1.8	7.7		94.6
Graz	7839	2.2	7.6	3.4	100.0	1.4	7.1	2.2	100.0	1.0	10.5	4.1	99.6	1.6	12.6	3.4	97.1	0.5	9.5	1.8	96.0
Wettzell	8834	3.1	9.8	5.0	100.0	2.3	7.9	4.1	100.0	1.9	9.5	3.9	99.6	2.4	8.6	7.0	98.4	1.7	11.2	6.5	94.1
Greenbelt	7105	2.8	10.2	6.0	99.6	1.5	7.6	3.0	100.0	1.5	10.7	4.7	99.0	2.9	10.8	4.1	99.3	1.4	10.2	5.3	91.1
Monument_Peak	7110	4.8	23.3	2.4	99.1	2.0	17.0	3.5	100.0	2.2	21.9	2.3	98.0	2.3	10.7	3.5	97.7	1.7	15.7	2.1	88.5
Matera_MLRO	7941	2.1	10.8	2.1	99.7	1.0	8.1	2.2	100.0	1.2	13.2	4.7	99.3	1.6	13.4	3.6	99.6	0.9	14.2	3.7	96.3
Potsdam_3	7841	3.1	8.8	3.7	100.0	1.9	7.7	3.4	100.0	1.5	9.5	3.6	99.0	1.8	10.2	3.2	96.2	1.2	11.4	3.4	94.8
Shanghai_2	7821	2.8	15.7	4.8	100.0	1.4	11.0	5.7	100.0	1.6	14.2	7.2	97.2	2.8	15.4	7.1	100.0	1.5	15.0	5.8	97.1
Wettzell_SOSW	7827	2.2	9.9	3.5	100.0	1.4	8.5	5.3	100.0	1.2	11.9	4.7	99.3	2.2	15.0	5.0	95.0
Hartebeesthoek	7501	3.3	13.2	6.3	100.0	1.9	8.6	3.8	100.0	1.8	14.0	5.0	99.0	2.0	14.5	6.4	98.1	2.4	11.8	6.3	91.1
Haleakala	7119	5.5	23.7	7.1	99.7	3.0	9.3	2.9	100.0	2.8	12.6	3.2	96.7	3.5	16.0	8.0	98.6	2.5	23.2	13.2	91.8
Altay	1879	5.8	23.8	14.9	100.0	2.8	20.9	19.9	100.0	2.0	26.2	21.4	97.8	3.2	25.7	13.9	98.0	2.8	20.8		95.6
Komsomolsk	1868					5.9	51.5	23.3	100.0
Arequipa	7403	10.0	38.0	17.5	94.3	9.9	34.5	24.1	100.0	3.8	46.6	22.0	89.9
Baikonur	1887	8.0	24.4	22.9	100.0	5.3	19.8	4.9	100.0	3.2	24.8	11.4	95.9	5.6	15.6	7.3	98.1
Badary	1890	4.6	12.6	6.2	100.0	4.9	16.0	8.2	100.0	3.8	16.4	6.0	95.2					3.5	19.9		91.7
Papeete	7124	4.5	16.1	9.4	100.0	2.7	9.6	5.0	100.0	3.1	12.5	6.8	98.2	3.6	21.9	6.9	99.4	2.0	15.3	5.8	92.8
Katzively	1893	14.2	19.5	13.1	98.0	14.8	19.6	10.7	100.0	3.1	12.2	8.9	68.0
Arkhyz	1886	11.1	26.9	27.3	100.0	6.2	28.7	21.7	100.0	4.9	27.5	18.9	78.0	5.4	30.4	14.1	96.1
Beijing	7249	8.0	19.1	13.9	97.4	11.1	17.8	12.6	100.0	3.6	23.2	17.9	90.2	6.2	25.1	18.0	97.4	2.8	27.1		85.3
Brasilia	7407	4.9	31.4	10.7	100.0	3.7	17.3	5.4	100.0	2.3	35.6	13.7	94.2	5.8	12.8	13.3	94.5
Simeiz	1873	26.0	50.8	20.0	93.1	24.9	44.8	28.5	100.0	4.0	37.5	12.4	47.2	24.1	52.1	32.1	88.7
Simosato	7838	5.8	18.9	6.1	99.7	4.0	17.0	6.8	100.0	3.5	16.3	16.4	96.8	4.5	11.3	2.5	99.5	3.6	11.9	4.5	94.8
Grasse_MEO	7845	3.6	11.1	5.4	100.0	2.5	16.1	5.8	100.0	2.3	17.2	4.3	99.5	2.9	16.7	12.2	97.7	1.9	11.8	4.3	94.4
Zelenchukskya	1889	9.2	20.0	16.8	100.0	7.7	28.6	18.0	100.0	5.2	20.2	28.1	90.5	7.2	18.0	12.8	92.5
Irkutsk	1891	7.0	11.8	7.0	100.0	5.9	11.1	7.5	100.0	2.7	18.2	8.6	96.5	5.9	12.7	7.0	94.8
Riga	1884	13.2	31.5	33.6	98.6	9.8	29.9	30.2	100.0
Mendeleevo	1874					6.4	17.7		100.0
McDonald	7080	7.0	12.9	16.6	100.0	4.7	13.4	19.5	100.0	2.7	19.7	17.6	96.3