International Laser Ranging Service

SLR Global Performance Report Card

September 1, 2016 through August 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	15821	2803	9328	27952	306707	26816	35480	369003	203221	5.9	7.8	8.5
Changchun	7237	8399	933	5900	15232	69982	5920	16522	92424	47502	5.4	8.1	9.3
Zimmerwald_532	7810	6158	951	2572	9681	105808	13569	8903	128280	88570	9.1	11.0	14.8
Herstmonceux	7840	4785	826	3735	9346	65613	9112	11539	86264	54806	3.4	9.3	13.2
Mount_Stromlo_2	7825	5476	969	2079	8524	81937	7552	7312	96801	61551	3.4	5.3	7.6
Matera_MLRO	7941	3782	1473	2708	7963	43979	13154	12362	69495	63892	.8	2.5	3.7
Graz	7839	3948	620	3096	7664	80802	4314	15340	100456	50594	2.1	3.4	5.1
Wettzell	8834	4067	562	2741	7370	35641	3448	10602	49691	29844	7.2	10.5	14.1
Greenbelt	7105	4579	770	802	6151	87001	7494	3279	97774	57708	1.9	5.5	8.5
Monument_Peak	7110	4657	616	856	6129	83175	4652	2487	90314	48241	4.7	7.5	11.3
Wettzell_SOSW	7827	2050	469	2592	5111	17974	2742	7654	28370	16248	8.3	9.7	10.1
Potsdam_3	7841	4081	446	513	5040	70575	4238	2837	77650	41550	6.8	10.5	12.3
Shanghai_2	7821	2232	443	2308	4983	18873	4309	9443	32625	22753	7.2	8.9	7.8
Hartebeesthoek	7501	2722	664	652	4038	41824	5658	2962	50444	37466	6.0	11.3	13.1
Haleakala	7119	2406	555	1	2962	36314	4648	3	40965	31240	5.1	8.4	11.1
Altay	1879	288	261	2370	2919	3140	1491	9130	13761	6718		29.2	31.2
Arequipa	7403	2538	131		2669	30205	762		30967	18718	6.8	8.7	7.6
Komsomolsk	1868	205	193	2145	2543	2351	1093	7464	10908	4933		34.9	35.3
Badary	1890	1947	141	119	2207	21177	730	411	22318	10191		29.1	27.3
Beijing	7249	1020	139	886	2045	8545	870	3257	12672	7254	11.2	14.5	19.2
Katzively	1893	1664	194	73	1931	16899	1331	422	18652	12653	26.5	10.6	10.0
Brasilia	7407	509	364	1028	1901	1705	1262	3700	6667	4838	31.5	22.8	28.7
Baikonur	1887	111	390	1392	1893	657	1564	5047	7268	5261		36.8	32.1
Simeiz	1873	1567	233	71	1871	17324	1714	347	19385	14376	27.9	9.4	12.6
Papeete	7124	1163	177	521	1861	19296	1522	2584	23402	13754	6.3	7.8	9.7
Simosato	7838	1372	382	26	1780	22924	6400	142	29466	33926	4.4	11.1	13.1
Arkhyz	1886	594	266	887	1747	4405	1086	2980	8471	5893		32.2	34.8
Zelenchukskya	1889	731	205	236	1172	7735	1548	846	10129	8601		21.3	35.8
Grasse_MEO	7845	628	370	18	1016	17928	4069	792	22789	20434	9.9	12.9	16.2
Riga	1884	882	83	49	1014	15971	690	251	16912	8504	6.3	13.5	15.5
Borowiec	7811	656	110	20	786	11310	1170	87	12567	9107	11.3	19.9	15.4
Sejong	7394	646	71	11	728	7611	598	47	8256	7279	4.2	8.3	11.7
Mendeleevo	1874	186	83	316	585	3492	1240	1055	5787	5045	-0.1	37.1	34.2
Irkutsk	1891	250	82	204	536	2520	894	565	3979	4325
Svetloe	1888	410	56	18	484	4407	422	62	4891	2973
Kiev	1824	368	11		379	2418	43		2461	1667	13.8	21.1
McDonald	7080	304	24	6	334	2018	61	18	2097	1352	9.5	14.6	17.5

 

 

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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	311	1055	289	29.1
Matera_MLRO	7941	6	13	11	47.0

 

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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	3.4	16.2	2.2	100.0	2.2	6.6	1.3	100.0	2.4	16.0	4.7	99.3	2.6	19.8	2.6	98.2	2.0	10.2	1.4	92.6
Changchun	7237	4.0	19.1	3.7	99.8	2.9	19.1	4.9	100.0	1.9	22.3	10.1	97.9	3.5	13.8	7.9	97.4
Zimmerwald_532	7810	2.7	13.1	5.5	99.9	1.7	7.6	3.0	100.0	1.8	11.0	5.4	99.1	2.7	15.5	2.4	97.4	1.6	11.1		94.1
Herstmonceux	7840	1.7	10.9	2.2	100.0	0.9	6.0	1.4	100.0	0.9	9.4	3.1	100.0	1.6	11.7	2.3	99.7	0.7	6.8	2.5	97.9
Mount_Stromlo_2	7825	3.1	16.1	3.8	100.0	2.2	7.1	3.2	100.0	1.9	14.4	4.9	99.5	3.0	15.2	4.8	94.3	1.6	9.5	2.2	95.9
Matera_MLRO	7941	2.1	13.5	4.8	99.9	1.2	6.8	3.5	100.0	1.2	14.4	5.3	99.5	1.9	15.3	3.7	99.2	1.0	14.6	4.8	96.1
Graz	7839	1.5	9.4	3.8	100.0	1.1	5.2	2.5	100.0	0.8	12.1	4.6	100.0	1.5	7.6	3.0	98.0	0.7	10.3	3.1	95.8
Wettzell	8834	2.6	10.2	9.3	100.0	2.1	5.4	8.8	100.0	1.7	11.4	9.5	99.8	2.5	9.6	7.8	99.3	1.5	7.6	9.1	95.5
Greenbelt	7105	2.8	14.5	6.8	99.8	1.7	7.1	5.1	100.0	1.7	14.2	4.1	99.1	1.9	17.2	5.3	98.9	1.8	14.6	5.5	89.9
Monument_Peak	7110	4.5	12.6	3.1	99.6	2.7	8.1	4.2	100.0	2.5	13.3	7.9	98.4	3.1	13.2	3.1	97.1	1.8	14.6	4.8	88.6
Wettzell_SOSW	7827	1.8	10.0	4.2	100.0	1.2	9.3	5.7	100.0	0.8	15.9	8.0	100.0	1.3	14.5	4.9	97.7
Potsdam_3	7841	2.5	10.2	5.4	100.0	1.6	6.7	4.7	100.0	1.5	8.5	4.1	100.0	1.9	13.6	4.3	98.6	1.3	12.5	4.4	94.9
Shanghai_2	7821	2.4	20.5	3.9	100.0	1.1	15.1	3.9	100.0	1.3	24.4	10.8	100.0	2.0	20.1	7.6	99.8	1.0	17.7	6.3	96.0
Hartebeesthoek	7501	3.7	13.4	9.3	100.0	2.1	7.2	4.0	100.0	2.1	10.7	4.9	98.7	2.1	18.8	5.8	97.4	2.4	17.9	5.6	92.9
Haleakala	7119	5.8	23.2	10.0	99.0	2.9	9.6	3.6	100.0	3.0	15.0	3.7	95.9	4.3	20.7	6.1	98.7	3.5	21.0	13.1	89.8
Altay	1879	4.6	14.7	13.8	99.8	3.0	18.0	18.5	100.0	2.8	16.9	20.0	98.9	3.5	22.8	12.7	99.5	2.0	20.5	17.2	93.6
Arequipa	7403	4.9	15.1	20.1	99.5	2.5	10.5	26.1	100.0	2.6	15.0	23.5	98.1	8.0	35.0	27.9	99.0
Komsomolsk	1868	9.9	26.4	24.5	99.4	9.0	27.5	22.6	100.0					7.5	39.8	9.7	91.3
Badary	1890	5.9	11.6	5.7	100.0	4.6	13.7	10.9	100.0					5.0	17.3	10.9	96.5	4.0	22.7	13.5	94.7
Beijing	7249	7.6	12.0	16.1	95.3	9.7	13.3	13.4	100.0	4.0	24.7	16.2	87.3	5.1	14.3	15.5	93.7	6.2	20.9	15.0	92.3
Katzively	1893	11.4	18.7	13.9	99.0	8.2	15.6	12.2	100.0	3.2	15.2	11.1	86.4	8.2	15.8	10.3	91.4	9.2	20.9	14.3	96.2
Brasilia	7407	5.2	27.3	10.4	99.9	4.3	21.7	5.9	100.0	1.9	32.8	14.2	96.7	5.8	31.5	11.7	96.4
Baikonur	1887	7.5	19.0	26.3	99.8	6.2	20.5	13.9	100.0	3.7	21.3	11.9	94.2	6.1	25.7	6.7	95.5	3.9	26.6	13.5	95.0
Simeiz	1873	22.7	39.3	24.1	92.2	22.9	37.9	31.9	100.0	4.1	40.6	15.0	53.9	22.1	37.9	29.8	90.2
Papeete	7124	3.7	11.1	10.3	100.0	2.5	7.8	6.2	100.0	2.5	10.5	7.3	98.9	3.6	16.9	7.9	100.0
Simosato	7838	5.4	13.3	13.2	100.0	2.9	9.7	14.8	100.0	3.6	16.0	20.1	97.2	5.0	17.1	2.3	99.7	5.8	17.5	8.1	95.7
Arkhyz	1886	7.8	28.4	19.8	100.0	6.0	25.6	22.1	100.0	3.6	31.5	22.3	100.0	5.8	30.0	15.0	95.9	3.9	24.5	19.3	97.5
Zelenchukskya	1889	6.3	15.5	11.9	99.8	5.8	11.9	12.1	100.0	3.9	13.4	24.9	96.0	5.8	20.6	8.4	97.4	3.6	16.3	5.9	90.8
Grasse_MEO	7845	3.7	9.8	8.5	100.0	2.8	10.8	11.0	100.0	2.5	22.1	10.1	98.7	2.8	14.3	9.3	97.3	2.1	18.9	6.1	93.0
Riga	1884	11.1	19.2	32.5	100.0	8.1	28.9	32.8	100.0
Borowiec	7811	3.7	9.5	10.8	100.0	2.7	11.0	11.3	100.0					3.2	6.6	8.3	100.0
Sejong	7394	1.5	7.8	21.9	98.5	2.5	7.0		100.0					1.7	10.9	27.4	98.7
Mendeleevo	1874	6.7	13.2	8.6	100.0	3.9	13.5		100.0					4.8	21.4	7.2	99.4
Irkutsk	1891	6.2	11.8	7.3	99.7	4.7	13.2	8.6	100.0					5.3	12.6		96.6