International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2008 through March 31, 2009

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	10720	2097	1554	14371	216492	25994	14013	256499	178604	4.9	8.6	9.3
San_Juan	7406	5856	1060	1367	8283	97481	12160	8898	118539	96605	9.8	10.5	14.9
Mount_Stromlo_2	7825	5999	1109	394	7502	74496	10927	3240	88663	62368	4.0	3.0	4.9
Zimmerwald_532	7812	5162	984	1011	7157	96027	13171	8653	117851	93767	6.5	9.0	11.8
Wettzell	8834	4395	957	319	5671	48183	6946	1441	56570	36944	3.7	12.4	18.6
Greenbelt	7105	4444	725	383	5552	101792	8603	2602	112997	55718	5.4	9.2	10.4
Graz	7839	4126	607	463	5196	77495	6458	3802	87755	51540	2.1	3.7	5.2
Herstmonceux	7840	3817	844	410	5071	55813	10636	1654	68103	44099	5.6	10.3	13.7
Changchun	7237	3617	595	359	4571	36560	3782	1453	41795	25233	7.1	10.7	11.3
Concepcion_847	7405	2567	923	618	4108	32171	11057	4780	48008	57332	5.7	15.5	19.3
Riyadh	7832	2339	626	268	3233	26716	5194	1446	33356	25889	8.6	11.6	15.0
Matera_MLRO	7941	2336	660	63	3059	29963	7455	520	37938	27811
San_Fernando	7824	2547	416	64	3027	37764	3058	261	41083	19359	6.3	10.3	15.1
Potsdam_3	7841	1909	326	39	2274	37128	3766	298	41192	18475	10.7	12.6	16.7
Haleakala	7119	1765	391		2156	30159	4519		34678	17612	5.2	10.1	9.8
Monument_Peak	7110	1619	321	207	2147	28121	3630	1716	33467	23332	5.3	15.9	16.3
Katzively	1893	1189	320	227	1736	18178	2610	1432	22220	17853	36.4	44.8	39.3
Arequipa	7403	1572	137		1709	17953	753		18706	6910	6.5	7.3	4.3
Shanghai_2	7821	1447	166	29	1642	16997	1591	162	18750	9410	11.9	14.5	18.8
Beijing	7249	1264	313	59	1636	15761	2642	406	18809	12455	8.1	22.3	14.1
McDonald	7080	1026	365	218	1609	11110	3712	919	15741	15357	11.3	11.6	12.6
Hartebeesthoek	7501	1201	265	17	1483	14229	2028	93	16350	8960	5.0	10.0	11.4
Simeiz	1873	755	280	61	1096	9479	2478	594	12551	10269		47.6	56.4
Kiev	1824	821	101		922	8500	629		9129	3920	7.1	20.0	22.9
Ajaccio	7848	770	4		774	11162	27		11189	3564
Kunming	7820	677	68		745	8528	425		8953	3848	17.2	18.9	23.0
Papeete	7124	506	144	18	668	8859	2092	100	11051	7273	4.0	10.0	9.7
Tanegashima	7358	427	89	100	616	6176	780	620	7576	6535	4.9	5.5	6.6
Simosato	7838	434	143		577	8224	1919		10143	6651	7.6	9.6	14.2
Koganei	7308	360	101	85	546	4754	893	601	6248	6421	9.6	13.1	15.2
Riga	1884	393	78	6	477	8575	1212	42	9829	4834	7.6	14.6	14.2
Grasse_LLR	7845	129	102	44	275	3085	1106	271	4462	4476	6.3	14.8	13.6
Lviv	1831	171	26		197	2658	185		2843	1231	14.3	60.4	70.0
Borowiec	7811	129	64		193	1534	641		2175	1790	17.1
Burnie_Tafe	7370	67	2		69	992	6		998	323
Helwan	7831	14			14	70			70	18	6.0	16.3

 

 

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
McDonald	7080	45	77	25	63.8

 

 

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	3.2	27.1	3.7	99.6	2.0	8.7	1.2	100.0	3.2	14.9	3.6	98.7	0.7	6.7	4.7	98.5	1.7	10.2	2.2	95.3
San_Juan	7406	5.7	33.2	7.5	99.4	3.0	23.4	8.6	99.2	4.6	18.5	3.3	95.1	0.8	11.4	5.1	97.9	3.4	24.8	10.1	95.4
Mount_Stromlo_2	7825	2.7	25.0	5.0	99.9	2.2	10.9	2.2	100.0	3.1	13.9	4.5	99.1	0.6	6.0	4.8	98.3	2.2	15.7	3.8	96.4
Zimmerwald_532	7810	3.9	18.4	11.2	99.1	1.5	9.6	8.1	100.0	3.5	14.2	8.5	99.6	0.7	3.2	12.9	98.8	1.6	9.4	3.6	96.6
Wettzell	8834	3.2	28.5	5.0	100.0	2.8	12.0	3.5	100.0	3.3	16.1	4.1	96.1	1.5	8.9	2.5	98.4	1.9	18.7	5.2	96.5
Greenbelt	7105	4.0	22.3	3.7	99.9	2.1	9.9	3.4	99.9	3.4	10.2	2.9	98.5	0.6	9.7	6.3	98.6	2.3	11.5	2.0	95.2
Graz	7839	2.3	19.0	5.3	99.8	1.2	7.2	2.4	100.0	1.6	10.4	5.0	100.0	0.4	3.3	4.7	99.2	1.0	9.4	4.4	95.3
Herstmonceux	7840	3.0	23.2	4.6	100.0	1.7	7.5	1.8	100.0	3.1	12.1	4.7	100.0	0.9	7.4	3.8	99.1	1.7	9.3	2.4	95.8
Changchun	7237	5.1	36.0	13.1	100.0	5.1	16.1	5.2	100.0	4.5	19.5	6.6	97.2	1.8	10.3	7.3	97.9	3.0	24.6	9.9	95.6
Concepcion_847	7405	3.7	31.7	6.0	100.0	1.8	17.0	4.6	100.0	4.2	13.2	8.1	99.1	3.5	22.6	3.3	100.0
Riyadh	7832	3.6	33.5	7.9	100.0	2.6	13.1	4.4	100.0	2.8	17.9	8.6	100.0	1.5	13.1	7.6	97.2	2.7	32.4	10.4	97.3
San_Fernando	7824	4.0	30.9	11.7	100.0	4.5	17.5	8.8	100.0	4.3	27.3	6.2	93.9					4.4	25.5	13.6	96.7
Potsdam_3	7841	3.8	20.6	10.5	99.9	2.3	8.3	3.5	100.0	3.0	13.2	6.6	97.4	1.3	6.7	4.4	96.2
Haleakala	7119	3.2	30.9	8.0	99.7	2.0	11.0	4.8	99.7	3.5	16.1	4.6	99.0	0.8	12.6	9.7	99.7	2.6	31.3	6.1	98.4
Monument_Peak	7110	2.9	30.5	7.5	99.7	2.3	8.9	4.9	99.8	3.1	19.5	7.5	98.1	1.2	11.1	4.3	97.5	2.1	9.4	5.0	96.0
Katzively	1893	8.6	41.2	26.0	100.0	8.1	20.5	14.7	100.0					1.5	28.1	16.3	95.9	5.0	28.9	17.0	95.7
Shanghai_2	7821																	6.2	16.5	11.5	91.8
Beijing	7249	9.5	37.5	14.0	96.0	7.3	22.3	17.2	94.1	5.5	18.0	14.0	76.4	5.1	14.2	27.2	92.5	7.9	25.2	11.3	91.0
McDonald	7080	4.4	25.4	5.0	99.9	2.8	9.3	3.3	100.0	3.9	16.0	5.2	99.6	1.2	6.1	5.1	96.7	2.6	12.7	4.3	94.5
Hartebeesthoek	7501	2.8	25.9	9.0	99.7	2.0	12.2	4.7	100.0	3.6	13.0	7.9	100.0	0.5	8.5	8.1	97.5	1.4	24.5	17.1	97.4
Simeiz	1873	30.3	57.2	27.8	61.5	103.9	50.1	15.5	100.0	2.8	23.4	11.9	18.7
Papeete	7124	3.5	18.5	6.2	100.0	1.9	13.0	4.2	100.0	3.1	11.4	3.1	100.0	0.2	5.2	3.9	100.0	5.4	19.6	9.9	97.6
Tanegashima	7358	3.7	31.7	12.5	100.0	2.0	24.7	13.8	100.0	4.2	31.1	29.2	98.6
Simosato	7838	7.7	30.0		99.7	5.1	17.1		99.3	6.1	15.9		91.5	2.3	8.9		97.8	5.7	21.3		94.9
Koganei	7308	5.4	27.4	9.4	100.0	4.0	15.2	7.4	99.8	5.4	15.9	10.5	96.3	1.4	13.3	10.2	98.3	3.5	17.5	8.8	95.3
Riga	1884	10.2	28.7	29.9	100.0	5.4	21.3	23.9	99.6	5.1	17.9	19.6	73.3	5.0	26.0	23.0	90.3	9.5	15.2	22.3	80.6
Grasse_LLR	7845	3.4	24.5		100.0	2.3	11.3		100.0	3.9	19.1		100.0	0.3	1.2		98.7	1.7	8.1		94.6