International Laser Ranging Service

SLR Global Performance Report Card

January 1, 2019 through December 31, 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	16512	2188	6970	25670	7837053	16591	39150	7892794	7724533	2.9	4.7	5.0
Zimmerwald_532	7810	7056	908	2885	10849	117801	12595	10839	141235	87122	6.6	8.9	11.7
Changchun	7237	6709	575	3431	10715	95619	4858	16123	116600	46143	6.0	8.8	10.8
Kunming	7819	3961	598	4546	9105	46147	2482	10879	59508	24978	5.2	11.6	11.3
Herstmonceux	7840	5036	667	2848	8551	69888	8691	9905	88484	53340	3.5	9.3	12.2
Mount_Stromlo_2	7825	6037	858	1370	8265	90076	6010	6488	102574	60968	3.4	5.2	6.8
Wettzell	8834	4196	749	2478	7423	61800	8127	16491	86418	59223	2.9	9.7	11.2
Wettzell_SOSW	7827	3244	511	3238	6993	54652	3707	14461	72820	38452	8.0	11.6	12.2
Greenbelt	7105	5038	717	738	6493	87281	6521	4776	98578	52101	2.1	6.4	8.6
Graz	7839	3376	350	2310	6036	62002	2265	11697	75964	33746	2.4	3.2	5.0
Matera_MLRO	7941	3092	949	1395	5436	28422	6925	6037	41384	37675	.9	2.3	2.8
Shanghai_2	7821	1990	373	1912	4275	16721	3417	8026	28164	18823	7.1	6.6	7.0
Hartebeesthoek_HARL	7501	3001	557	713	4271	40898	3469	4338	48705	28871	3.0	5.9	7.0
Potsdam_3	7841	2794	325	1012	4131	36368	2071	3668	42107	18756	2.0	5.6	7.3
Monument_Peak	7110	3577	231	322	4130	61832	1734	2745	66311	29654	2.9	6.5	6.2
Haleakala	7119	2285	458	33	2776	33563	3820	991	38374	26328	2.4	5.9	8.4
Arequipa	7403	2548	65	17	2630	25416	259	225	25900	13835	4.6	5.9	7.0
Beijing	7249	1400	202	1012	2614	10405	1174	3336	14915	8479	8.0	11.8	16.4
Simeiz	1873	2018	234	273	2525	19841	1198	1200	22239	11124	17.3	11.8	16.2
Grasse_MEO	7845	524	434	1557	2515	5166	5370	5524	16060	20333	8.4		14.7
Hartebeesthoek_HRTL	7503	885	301	1000	2186	9709	1720	3681	15110	9136	28.1	24.2	27.8
Badary	1890	1383	381	307	2071	12086	1923	942	14951	12447		35.1	36.8
Katzively	1893	1734	153	2	1889	21033	1003	6	22042	12626	24.2	9.0	9.5
Altay	1879	104	162	1271	1537	1004	903	3778	5685	3446			31.3
Irkutsk	1891	1074	125	257	1456	7940	798	559	9297	5624	40.3	32.8	36.0
Komsomolsk	1868	75	157	1196	1428	1098	927	4185	6210	3334			31.8
Svetloe	1888	859	184	155	1198	6747	1150	406	8303	6898			33.7
Wuhan	7396	467	106	598	1171	3974	835	2420	7229	4420	6.4	8.8	10.4
Arkhyz	1886	426	209	395	1030	3188	1270	1557	6015	5850		29.2	30.7
Brasilia	7407	129	173	601	903	716	564	1734	3014	2096	29.3	19.6	28.8
Borowiec	7811	680	107	69	856	10712	1104	310	12126	7523	12.9	21.3	17.6
Riga	1884	580	85	58	723	10786	800	310	11896	6138	7.5		11.3
Simosato	7838	597	103	5	705	6725	885	22	7632	6917	10.7	9.2	15.5
Baikonur	1887		295	375	670		1212	1030	2242	3636			33.2
Kiev	1824	559	46		605	5086	310		5396	3781	11.3	28.1	32.5
Papeete	7124	330	33	75	438	4249	229	369	4847	2665
Zelenchukskya	1889	302	35	86	423	2485	153	225	2863	1992
Sejong	7394	234	46	1	281	3199	336	11	3546	3272	3.5	9.1	11.6
Mendeleevo	1874	68	64	124	256	1420	846	402	2668	3105	26.4	28.9	26.5
San_Fernando	7824	103	131		234	762	445		1207	1831	6.8	11.0	23.6
Tanegashima	7358	69	107		176	590	807		1397	2894	1.5	3.5	4.6

 

 

---

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	281	1160
Wettzell	8834	3	23
Matera_MLRO	7941	2	5

 

---

 

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	6.5	1.3	100.0	2.1	16.3	1.4	98.7	2.3	16.8	4.0	98.7	1.2	9.9	2.7	94.5
Zimmerwald_532	7810					1.4	6.8	1.0	100.0	1.5	13.9	3.1	99.7	3.0	14.0	2.4	95.8	1.6	7.9	3.0	96.3
Changchun	7237					4.4	16.3	5.2	100.0	3.0	21.3	2.8	97.8	4.8	20.8	4.3	97.8	2.8	18.2	6.8	95.1
Kunming	7819					4.0	23.6	5.7	100.0	3.2	32.5	8.5	96.0	4.3	24.3	8.7	99.3
Herstmonceux	7840					0.9	5.5	1.0	100.0	1.3	13.1	3.0	100.0	1.5	9.0	2.2	99.5	0.9	7.2	2.6	97.0
Mount_Stromlo_2	7825					2.7	8.1	2.7	100.0	2.2	20.4	5.3	98.9	3.1	13.8	3.6	96.9	1.8	14.0	2.9	95.8
Wettzell	8834					1.2	6.2	6.8	100.0	1.0	16.2	6.1	99.8	9.7	40.3	7.2	95.9	0.8	9.1	2.6	96.4
Wettzell_SOSW	7827					2.2	8.0	3.1	100.0	1.6	16.7	7.3	100.0	2.3	7.5	6.7	95.0
Greenbelt	7105					1.7	7.5	2.8	100.0	2.0	15.9	6.6	96.6	2.2	12.9	4.7	98.6	1.6	10.4	3.2	94.5
Graz	7839					1.4	6.3	2.1	100.0	0.8	12.8	6.3	99.5	1.9	11.1	4.1	95.4	0.9	10.0	2.8	96.9
Matera_MLRO	7941					1.1	8.3	1.8	100.0	1.1	17.3	2.0	99.8	1.5	13.5	3.2	99.5	0.8	14.6	2.5	96.6
Shanghai_2	7821					1.7	10.5	6.0	100.0	1.7	17.7	8.0	99.1	2.2	17.1	6.2	98.4	1.7	15.6	11.2	85.7
Hartebeesthoek_HARL	7501					1.6	9.1	3.5	100.0	2.1	16.1	3.2	97.3	1.7	21.2	3.9	98.0	1.3	16.7	9.6	96.0
Potsdam_3	7841					1.4	9.1	3.5	100.0	1.4	14.8	3.2	99.5	1.8	9.4	6.8	98.8	1.1	14.7	6.9	97.8
Monument_Peak	7110					2.1	6.5	2.4	100.0	1.8	14.0	9.1	100.0	1.9	15.5	14.2	97.4	1.2	13.7	11.5	95.9
Haleakala	7119					2.0	8.9	3.7	100.0	2.2	20.5	5.2	98.6	3.5	18.8	6.7	99.6	2.0	19.5	8.6	93.6
Arequipa	7403					3.0	12.7	7.4	100.0	2.6	5.8	14.8	93.3
Beijing	7249					11.4	21.4	11.3	100.0	4.4	25.1	8.5	92.4	8.9	22.1	10.1	97.4	3.8	16.4	14.2	93.9
Simeiz	1873					23.6	43.0	5.0	100.0	5.2	40.3	7.6	62.5	18.2	39.9	11.7	87.2
Grasse_MEO	7845					2.6	11.4	2.5	100.0	2.5	18.6	6.0	92.5	3.0	14.3	2.5	97.5	2.3	9.4	3.4	94.5
Hartebeesthoek_HRTL	7503					3.9	21.8	4.7	100.0	3.3	23.1	4.2	93.9	4.1	23.4	9.1	100.0
Badary	1890					6.2	12.5	4.7	100.0	4.0	19.5	5.2	93.7	5.7	17.2	5.8	96.5	3.8	14.7	4.9	95.0
Katzively	1893					10.4	17.3	10.5	100.0	5.8	20.2	13.3	81.3	9.8	18.4	14.4	92.6	8.5	13.9	9.8	92.9
Altay	1879					2.4	21.9	11.5	100.0	1.7	20.0	10.0	94.2	2.4	32.8	14.2	100.0	1.1	19.8	14.2	97.0
Irkutsk	1891					8.5	13.1	5.1	100.0	5.4	21.4	8.6	88.2	8.6	17.1	11.9	95.1
Komsomolsk	1868					4.3	18.5	10.8	100.0	3.8	23.4	16.7	98.2	4.1	28.1	8.4	97.3	2.5	26.9	8.6	92.1
Svetloe	1888					5.4	12.7	6.3	100.0	4.5	17.3	10.8	95.0	5.7	10.9	8.9	97.8
Wuhan	7396									2.1	31.9		96.7	3.3	49.2		96.8
Arkhyz	1886					5.7	26.4	8.9	100.0	4.4	27.9	11.2	92.0	5.9	18.4	10.2	96.8	3.4	13.6	8.8	95.0
Brasilia	7407					3.5	15.7	4.8	100.0	2.3	36.6	24.9	98.0	5.1	14.0	18.5	100.0
Borowiec	7811					3.6	20.3	3.1	100.0	2.8	21.1	10.9	98.4	4.6	23.8	5.7	99.6	2.2	16.3	6.5	95.2
Riga	1884					5.2	24.4	11.0	100.0					11.2	27.1	15.9	98.9
Simosato	7838					3.7	19.1	9.3	100.0	3.7	23.7	16.4	89.6	4.3	24.1	13.7	99.2	4.8	19.2	22.4	94.2
Baikonur	1887					6.3	17.2	8.3	100.0	3.4	16.1	9.5	93.3	6.1	14.6	12.5	94.6	3.4	18.6	4.9	100.0
Kiev	1824													18.5	45.1		90.9
Papeete	7124					2.2	8.7	13.6	100.0
Sejong	7394					1.9	13.2		100.0
Mendeleevo	1874					5.2	10.5		100.0
San_Fernando	7824					11.0	17.6		100.0	2.2	22.1		84.6