International Laser Ranging Service

SLR Global Performance Report Card

July 1, 2011 through June 30, 2012

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	11014	1855	4616	17485	183185	22950	24804	230939	226266	5.7	7.9	9.4
Zimmerwald_532	7810	8455	1579	5411	15445	143849	22402	28928	195179	231469	4.4	8.7	11.0
Graz	7839	4487	761	2815	8063	74303	6118	16539	96960	118316	2.5	3.8	5.1
Greenbelt	7105	6203	781	755	7739	112731	7587	4403	124721	70289	8.0	8.8	10.0
Matera_MLRO	7941	4677	1393	1472	7542	59612	15177	10887	85676	105039	1.3	3.2	5.1
Changchun	7237	4575	614	1846	7035	41323	3570	7806	52699	58888	7.6	11.4	13.9
Mount_Stromlo_2	7825	4959	817	454	6230	59713	6600	2207	68520	45461	3.4	5.0	6.5
Herstmonceux	7840	3427	757	1924	6108	48053	8255	6544	62852	63760	6.0	10.3	10.3
Wettzell	8834	4141	798	1161	6100	41155	5325	5438	51918	51914	6.1	11.5	14.8
San_Juan	7406	3673	776	1267	5716	78681	14174	13859	106714	121685	5.6	10.5	9.0
Monument_Peak	7110	3268	690	609	4567	57803	7894	3560	69257	51158	7.3	11.7	13.8
Hartebeesthoek	7501	2983	751	473	4207	43694	8994	3524	56212	49458	5.8	11.0	11.7
Potsdam_3	7841	2638	399	158	3195	44568	4253	1257	50078	27817	7.6	12.8	14.9
San_Fernando	7824	2886	258	19	3163	35001	1185	50	36236	14142	6.0	11.9	16.9
Arequipa	7403	2524	307		2831	33277	2309		35586	15708	5.2	12.0	10.1
Haleakala	7119	2147	568		2715	35799	6823		42622	25097	4.2	8.5	12.3
Katzively	1893	1567	319	307	2193	23383	2787	2349	28519	24989	33.8	69.6	37.3
Grasse_MEO	7845	867	514	559	1940	26770	5883	2569	35222	31709	11.7	16.8	17.7
Simosato	7838	1101	425	137	1663	30252	10558	1694	42504	40514	5.5	8.1	10.0
McDonald	7080	910	384	211	1505	9188	3250	846	13284	13922	7.2	12.6	13.2
Shanghai_2	7821	922	188	370	1480	8879	1008	1769	11656	13737	5.7	10.8	12.1
Simeiz	1873	943	303	65	1311	11895	2232	399	14526	10143		51.0	47.2
Kiev	1824	997	197	77	1271	7392	906	226	8524	5347	15.5	13.2	27.3
Koganei	7308	446	192	339	977	5622	1428	2784	9834	18702	11.0	11.0	14.8
Riga	1884	794	89	1	884	20719	1221	14	21954	8482	10.8	13.0	13.3
Altay	1879	181	269	409	859	2017	2218	2461	6696	17086			12.8
Papeete	7124	620	196		816	10726	2710		13436	8893	5.5	8.4	9.2
Beijing	7249	393	70	76	539	8309	1014	796	10119	9070	7.2	12.4	16.2
Komsomolsk	1868	38	148	256	442	265	925	1010	2200	7032			12.7
Tanegashima	7358	226	10	23	259	2445	60	397	2902	2929	2.3	19.5	17.5
Arkhyz	1886	58	76	95	229	774	831	462	2067	4254		15.6	15.3
Baikonur	1887	81	67		148	623	662		1285	1635		13.2	12.8
FTLRS_Tahiti	7822	69	16		85	1317	141		1458	726
Concepcion_847	7405	1503	678	364	2545	15083	6895	2280	24258	31611	6.1	14.7	16.2
Helwan	7831	2			2	12			12	6
Koganei	7328	1			1	5			5	1

 

 

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	6	314
McDonald	7080	10	25	2	31.2
Matera_MLRO	7941	1	3

 

 

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 quarter
  • the second AC column is the measure of short term bias stability, in millimeters, during the last quarter. 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 quarter 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	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95	10.0	20.0	20.0	95
Yarragadee	7090	3.5	19.9	2.5	100.0	1.7	8.1	1.2	100.0	2.9	11.2	3.2	99.0	2.3	14.3	2.0	98.7	1.7	11.0	2.8	94.0
Zimmerwald_532	7810	2.7	16.2	3.1	99.9	1.3	6.2	1.5	99.9	1.8	9.4	3.9	99.8	2.2	11.8	2.7	98.1	1.3	8.8	2.4	96.2
Graz	7839	2.1	13.8	2.9	99.7	1.1	6.2	1.8	100.0	1.2	8.1	6.2	99.5	1.7	12.6	2.6	98.5	0.8	7.6	6.3	96.5
Greenbelt	7105	4.5	21.9	3.3	99.2	2.4	8.9	2.6	99.6	3.3	12.8	3.6	98.6	3.1	18.2	5.1	96.7	2.3	14.6	4.0	93.0
Matera_MLRO	7941	3.0	17.3	3.3	99.8	1.4	9.3	1.0	99.6	2.1	14.1	5.2	99.6	2.1	16.5	4.2	99.3	2.4	29.6	3.0	98.6
Changchun	7237	4.8	30.0	12.4	100.0	2.6	26.6	10.1	99.2	2.7	28.6	8.3	96.2	4.1	33.9	15.4	94.9	1.8	31.0	16.0	97.1
Mount_Stromlo_2	7825	4.3	23.3	3.7	99.4	2.5	12.3	3.4	100.0	3.2	15.2	12.0	98.1	3.3	16.5	5.3	97.8	2.2	13.0	6.8	95.5
Herstmonceux	7840	2.9	12.0	2.0	100.0	1.7	6.8	1.5	100.0	2.1	11.9	4.6	99.9	2.6	9.5	3.0	97.2	1.4	11.4	3.4	95.2
Wettzell	8834	2.9	15.7	5.0	100.0	2.0	9.0	3.3	100.0	2.1	11.0	4.8	100.0	2.0	11.0	4.2	98.8	1.1	13.6	2.5	94.8
San_Juan	7406	8.7	33.2	14.2	99.9	4.7	31.6	13.5	99.0	5.3	33.9	10.6	90.6	4.9	23.8	7.3	96.3	4.8	28.4	9.0	93.8
Monument_Peak	7110	4.9	20.9	10.1	99.9	2.1	12.9	21.9	100.0	4.1	22.0	5.3	98.1	2.9	18.2	15.1	97.1	2.5	14.9	4.7	93.9
Hartebeesthoek	7501	3.9	21.0	16.7	99.8	1.9	15.7	16.2	100.0	3.1	16.4	16.1	99.0	2.4	21.8	14.1	98.7	2.2	18.3	23.0	94.8
Potsdam_3	7841	3.9	16.5	5.2	99.9	2.2	7.6	4.2	99.8	3.4	9.9	4.7	99.3	2.5	12.7	5.1	96.5
San_Fernando	7824	6.3	24.0	11.5	100.0	5.4	14.1	8.1	100.0	4.0	18.3	10.6	97.6	4.3	19.0	11.2	98.4
Arequipa	7403	8.8	36.9	10.6	99.7	2.2	24.1		99.7	4.2	21.8		97.9	3.0	16.4		97.1	1.7	15.3	7.6	92.7
Haleakala	7119	4.0	25.1	4.0	99.6	2.6	12.8	3.1	99.4	3.2	11.9	4.6	97.9	3.8	28.7	7.8	98.2	7.0	29.8	6.4	91.9
Katzively	1893	13.1	31.7	8.4	98.4	8.9	22.7	7.2	96.0	6.5	12.1	6.3	82.1	8.6	16.0	11.5	89.1	9.5	19.5	7.9	97.4
Grasse_MEO	7845	4.2	18.3	7.4	100.0	2.8	13.0	16.9	100.0	3.9	12.3	8.3	99.4	3.0	15.3	9.9	97.5	2.2	11.7	4.9	95.7
Simosato	7838	7.2	23.7	15.2	99.9	3.0	13.6	12.3	99.5	5.1	17.2	13.2	97.7	5.1	17.7	12.3	99.5	4.0	15.9	9.9	94.0
McDonald	7080	4.1	19.6	5.7	99.4	2.9	10.3	3.8	99.7	3.2	9.0	4.3	95.5	3.3	18.0	9.3	96.2	2.3	17.0	6.2	94.0
Shanghai_2	7821	2.9	32.1	17.0	95.2	1.4	14.5	13.2	98.8	1.4	16.7	12.1	87.5	4.8	19.5	16.3	100.0	1.4	19.0	14.0	86.7
Simeiz	1873	59.1	41.0	15.5	88.8	72.2	44.4	15.0	97.8					169.9	34.7	26.5	79.3	25.8	29.9	22.0	64.2
Kiev	1824	11.8	47.4	15.2	89.7	13.4	31.0	13.2	93.0	3.7	25.9	13.6	55.0	18.8	17.2	13.6	82.1
Altay	1879	18.1	51.4	61.8	94.6									6.2	48.7	24.7	96.6
Papeete	7124	3.6	19.8	5.6	99.8	1.8	12.6	2.9	100.0	3.0	17.2	6.7	99.7	2.8	23.8	5.9	100.0	4.5	26.0	16.8	97.3
Beijing	7249	6.5	26.5		99.7					3.7	30.2		90.4	6.1	25.6		100.0
Komsomolsk	1868	20.4	42.8	34.1	95.8									12.8	33.8	11.3	87.5
Baikonur	1887	12.5	40.6		99.8					5.7	32.7		83.9	6.7	27.0	7.9	92.9
Concepcion_847	7405	3.5	28.6		100.0	1.7	37.3	4.0	100.0	4.6	27.9		99.0	2.3	29.7	7.0	100.0