International Laser Ranging Service

SLR Global Performance Report Card

July 1, 2018 through June 30, 2019

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	18067	2477	7410	27954	282850	18598	28154	329602	162648	2.8	4.7	4.9
Changchun	7237	10087	767	4883	15737	128048	6277	18604	152929	61664	5.6	9.5	11.2
Zimmerwald_532	7810	9611	1221	4747	15579	162786	18242	18281	199309	124117	6.1	8.8	11.7
Herstmonceux	7840	6587	870	4172	11629	90074	10787	13268	114129	66533	3.5	9.2	12.5
Wettzell	8834	5476	799	3669	9944	104033	11800	31916	147749	92977	7.1	8.4	11.9
Mount_Stromlo_2	7825	6820	1070	1835	9725	100453	8612	5000570	5109635	77011	3.3	4.9	7.4
Kunming	7819	3946	556	4503	9005	45952	2292	10817	59061	24898	5.1	12.2	10.9
Wettzell_SOSW	7827	3881	622	4081	8584	84804	5476	22072	112352	56427	7.9	11.4	11.7
Matera_MLRO	7941	4727	1404	2295	8426	48411	10650	9807	68868	58969	1.0	2.5	3.0
Graz	7839	4743	512	2926	8181	87131	3130	12482	102743	46690	2.5	3.5	5.0
Greenbelt	7105	6115	810	784	7709	111745	7379	3125	122249	62314	2.0	6.4	9.9
Potsdam_3	7841	4246	479	1251	5976	57291	3303	4486	65080	30695	2.3	6.3	7.6
Monument_Peak	7110	4807	393	377	5577	82943	2861	1030	86834	40705	3.0	5.7	7.5
Hartebeesthoek_HARL	7501	3630	635	828	5093	48398	3967	4136	56501	34474	3.7	6.7	7.9
Shanghai_2	7821	1815	369	1939	4123	16798	3431	9147	29376	19204	8.3	8.3	7.8
Beijing	7249	1971	273	1477	3721	15948	1718	5284	22950	12404	4.1	8.4	13.5
Arequipa	7403	3562	106		3668	36084	428		36512	19546	3.9	7.4	7.7
Simeiz	1873	2252	296	379	2927	23298	1585	1616	26499	13827	15.7	10.5	12.6
Haleakala	7119	2125	437		2562	31787	3541		35328	25029	2.7	5.7	8.5
Badary	1890	1479	413	338	2230	13768	2256	1093	17117	14074		35.7	36.5
Katzively	1893	2008	149	1	2158	21861	896	2	22759	13435	23.2	9.7	10.6
Grasse_MEO	7845	394	382	1347	2123	4129	4725	4750	13604	17743	8.7		16.4
Irkutsk	1891	1316	221	576	2113	10559	1528	1214	13301	8691	39.7	28.7	35.5
Hartebeesthoek_HRTL	7503	1040	253	675	1968	10763	1173	2156	14092	7890	28.8	24.4	26.2
Altay	1879	94	176	1608	1878	966	913	4316	6195	3393			34.6
Komsomolsk	1868	75	151	1614	1840	1470	886	5450	7806	3130			29.5
Papeete	7124	1005	126	346	1477	14457	1004	1738	17199	9453	7.9	10.1	10.3
Brasilia	7407	303	304	846	1453	1531	973	2332	4836	3697	29.9	19.2	28.0
Svetloe	1888	947	189	163	1299	6407	929	410	7746	6120		25.5	32.5
Arkhyz	1886	447	196	615	1258	3645	1027	2090	6762	5155		42.5	33.7
Zelenchukskya	1889	817	99	281	1197	6527	537	734	7798	5426		28.7	38.1
Borowiec	7811	897	134	87	1118	14987	1622	426	17035	10745	13.6	22.6	17.7
Simosato	7838	767	172	20	959	11014	2240	132	13386	13966	14.3	12.4	15.0
Baikonur	1887		316	469	785		1324	1732	3056	3972			29.6
Riga	1884	647	86	35	768	11483	816	167	12466	6251	8.1	13.4	10.3
Kiev	1824	646	61		707	6325	443		6768	4675	11.3	23.0	35.7
Sejong	7394	569	89	10	668	7539	566	65	8170	7062	3.9	8.3	11.0
Mendeleevo	1874	64	39	152	255	1449	676	439	2564	2620
McDonald	7080	53			53	403			403	261

 

 

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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	374	1527	450	23.0
Matera_MLRO	7941	27	59
Wettzell	8834	3	12	8	17.5

 

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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 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					1.7	7.2	1.4	100.0	2.0	14.9	1.5	99.7	2.1	17.0	3.3	98.6	1.3	10.7	1.2	96.1
Changchun	7237					3.7	13.2	5.0	100.0	3.4	19.4	6.9	98.2	4.8	15.2	6.4	97.3	2.5	15.9	11.6	96.2
Zimmerwald_532	7810					1.5	6.6	2.0	100.0	1.5	13.9	2.3	99.2	2.5	11.6	1.2	95.3	1.8	10.6	1.8	94.2
Herstmonceux	7840					0.9	5.4	1.0	100.0	1.0	9.5	2.2	99.8	1.6	10.4	2.9	99.5	1.2	11.9	3.6	96.9
Wettzell	8834					1.8	7.1	2.7	100.0	1.6	12.2	2.8	100.0	2.2	13.4	3.4	98.2	1.1	11.5	3.5	96.0
Mount_Stromlo_2	7825					2.5	7.3	1.0	100.0	2.5	16.6	3.5	96.9	2.9	15.4	3.7	97.3	1.7	10.4	3.5	94.6
Kunming	7819					4.2	23.5	6.8	100.0	3.2	33.3	9.8	97.3	4.3	24.1	7.3	98.4
Wettzell_SOSW	7827					1.9	7.2	2.8	100.0	1.3	16.0	3.8	99.0	2.4	12.4	3.9	91.6
Matera_MLRO	7941					1.1	5.5	0.8	100.0	1.1	13.5	1.6	100.0	1.5	12.3	2.2	99.8	0.8	15.8	2.7	96.9
Graz	7839					1.1	6.2	3.0	100.0	0.9	13.4	5.9	100.0	2.1	7.7	4.9	98.7	0.6	10.2	2.9	95.9
Greenbelt	7105					1.7	7.6	1.5	100.0	2.0	16.2	4.5	99.3	2.6	15.7	6.4	98.5	2.1	15.0	3.0	95.6
Potsdam_3	7841					1.3	7.5	2.5	100.0	1.1	12.8	3.2	100.0	1.8	13.2	6.3	98.8	0.9	10.6	4.6	95.0
Monument_Peak	7110					2.4	7.9	4.1	100.0	1.8	16.2	8.6	98.3	2.2	12.3	14.4	99.2	1.5	11.2	10.3	97.5
Hartebeesthoek_HARL	7501					1.7	9.8	3.3	100.0	1.8	17.5	3.6	98.8	1.8	15.2	3.9	98.5	1.7	12.5	5.8	96.4
Shanghai_2	7821					1.9	11.3	5.1	100.0	1.5	18.2	12.4	99.1	2.2	13.5	7.4	97.2	1.7	21.1	20.8	98.6
Beijing	7249					5.6	21.7	10.3	100.0	4.7	28.6	15.2	89.5	5.2	23.8	14.7	100.0	3.3	23.5	10.1	95.7
Arequipa	7403					3.0	11.4	5.5	100.0	3.3	17.2	13.8	92.0	4.9	54.7	28.3	95.9
Simeiz	1873					23.7	45.2	15.4	100.0	4.8	44.0	25.8	57.6	21.9	43.5	23.8	88.3
Haleakala	7119					2.1	9.0	4.1	100.0	2.1	16.6	5.9	97.8	3.3	18.5	8.8	99.4	2.9	20.1	8.1	98.8
Badary	1890					5.2	13.4	7.6	100.0	3.6	25.7	9.8	94.7	5.3	15.3	10.3	98.4	3.2	21.1	6.5	94.9
Katzively	1893					9.8	23.2	8.8	100.0	4.6	30.7	9.3	81.7	9.8	17.5	10.4	88.9	8.5	26.8		90.0
Grasse_MEO	7845					2.8	13.1	2.9	100.0	2.9	21.0	6.1	99.0	2.9	12.7	4.8	97.0	2.5	11.1	3.9	95.8
Irkutsk	1891					7.0	14.0	6.3	100.0	4.5	19.8	9.4	93.3	7.3	13.6	6.9	97.0
Hartebeesthoek_HRTL	7503					4.3	25.4	8.3	100.0	3.4	23.5	3.7	95.8	6.7	25.5	14.5	99.7
Altay	1879					4.1	17.7	16.7	100.0	2.2	18.5		91.8	3.7	21.9	18.9	98.1	1.6	22.3	14.2	94.7
Komsomolsk	1868					4.7	16.8	8.0	100.0	4.0	29.3	16.0	87.9	4.9	20.4	13.6	98.2
Papeete	7124					3.2	8.7	8.4	100.0	4.2	14.6	14.4	97.8	4.5	16.4	12.3	97.4
Brasilia	7407					3.3	16.7	7.7	100.0	2.3	33.3	23.8	93.8	5.0	14.6	15.9	98.9	2.7	25.6		99.0
Svetloe	1888					4.2	12.9	7.1	100.0	3.2	17.6	6.6	97.4	4.6	19.0	11.1	99.0	3.4	16.5	18.9	96.5
Arkhyz	1886					4.4	26.8	10.8	100.0	4.1	30.3	11.7	92.6	4.9	22.5	8.7	99.0	6.5	23.0	14.0	98.3
Zelenchukskya	1889					6.7	24.1	8.1	100.0	3.5	15.9	8.7	97.5
Borowiec	7811					3.9	11.7	3.6	100.0	3.8	15.6	6.1	98.7	4.4	12.4	7.1	99.8	3.5	12.2	7.0	93.3
Simosato	7838					5.0	19.7	19.7	100.0	3.3	26.4	26.3	93.3	3.8	13.3	22.3	98.7
Baikonur	1887					6.8	15.0	10.2	100.0	4.8	25.3		92.8	5.8	12.1	13.8	95.2	5.9	25.5	5.3	95.2
Riga	1884					4.4	32.5	17.9	100.0	5.4	28.4	18.3	83.6	10.6	25.5	28.5	94.5	7.4	28.0		94.5
Sejong	7394					1.4	13.9	14.9	100.0
Mendeleevo	1874					3.4	13.3	3.2	100.0					4.4	15.2	6.1	99.0