International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2004 through March 31, 2005

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	8591	1380	1054	11025	155148	17074	9092	181314	125842	5.0	8.7	9.2
Riyadh	7832	4677	1158	753	6588	66203	10230	4208	80641	62629	9.7	11.9	17.3
Wettzell	8834	4941	972	463	6376	64058	7058	2568	73684	47493	3.2	10.4	15.9
Graz	7839	5059	803	458	6320	102367	9780	3786	115933	67045	2.1	4.0	8.0
Zimmerwald_423 Zimmerwald_846	7810	4351 3733	900 800	567 421	5818 4954	63292 54322	11641 10920	4025 2730	78958 67972	62871 52288	13.8 20.4	17.6 21.8	19.7 22.8
Monument_Peak	7110	4163	678	248	5089	62823	5218	1847	69888	38320	5.7	12.7	13.6
Herstmoncex	7840	3464	723	218	4405	53562	8488	992	63042	37225	7.9	12.6	15.8
Changchun	7237	3189	455	140	3784	40191	4341	723	45255	24798	11.0	14.6	14.7
Mount_Stromlo_2	7825	2089	727	301	3117	30121	10148	1780	42049	39598	3.2	6.5	7.8
San_Fernando	7824	2290	257		2547	33714	1321		35035	12937	7.9	11.2	18.4
Simosato	7838	1811	522	7	2340	38303	8871	72	47246	30085	11.4	15.6	16.9
Matera_MLRO	7941	1584	516	196	2296	23418	4872	1332	29622	24051	2.0	4.1	5.9
Hartebeesthoek	7501	1717	376	114	2207	24311	3849	933	29093	20725	5.2	8.2	9.5
Greenbelt	7105	1889	228	81	2198	40361	2401	653	43415	19668	5.8	8.4	8.7
Beijing	7249	1607	290	140	2037	24206	3043	980	28229	18244	12.3	164.7	24.2
McDonald	7080	1343	386	190	1919	17812	3679	958	22449	17284	11.0	12.2	12.6
Shanghai	7837	1630	261	17	1908	24392	2646	131	27169	13418	10.5	19.3	22.9
Potsdam_3	7841	1562	299	14	1875	31125	3767	99	34991	16500	10.4	6.6	9.0
Riga	1884	1322	107		1429	24890	1163		26053	8569	7.3	15.0	15.4
Kiev	1824	946	80		1026	9827	477		10304	3759	58.1	76.6	77.5
Borowiec	7811	823	173		996	14264	1886		16150	7796	15.8	18.3	20.9
Grasse	7835	828	135		963	18281	1507		19788	7929	5.7	10.1	17.1
Maidanak_1	1864	506	238	137	881	6445	1581	592	8618	8193		51.3	57.9
Papeete	7124	628	63		691	8236	382		8618	3364	5.7	7.5	8.4
Simeiz	1873	487	136	32	655	4562	793	152	5507	3819			80.3
Urumqi	7355	428	118	4	550	6034	1326	17	7377	4481
Katzively	1893	439	101	6	546	7268	736	26	8030	3825	57.3	57.1
Metsahovi	7806	361	29	1	391	5622	220	6	5848	1956	9.9	16.3	19.0
Lviv	1831	298	67		365	4862	596		5458	2789	12.9	32.4	53.3
Haleakala	7210	276	51	7	334	4475	559	35	5069	2604
Helwan	7831	266			266	2691			2691	865	6.0	17.2
FTLRS_San_Fernando	7823	192	12		204	3994	83		4077	1394
FTLRS_Brest_France	7604	200	3		203	3081	13		3094	993
Wuhan_2	7231	137	36		173	1785	250		2035	1104	12.5
Koganei	7308	107	40	16	163	1498	381	111	1990	1959	10.4	14.9	15.7
Concepcion_847 Concepcion_423	7405	84 219	52 47	7	143 266	961 1797	409 198	23	1393 1995	1275 1048	11.2 7.4	19.9 13.7	20.7 14.7
Potsdam_1	7836	62	11		73	894	105		999	428
Komsomolsk	1868	3	9		12	9	66		75	136
Tanegashim	7358	1	2		3	17	16		33	40

 

 

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_LLR	7845	120	477	171	37.1
McDonald	7080	40	76	18	71.0
Matera_MLRO	7941	1	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 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 millimeter, 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		Delft Orbital Analysis				NICT Orbital Analysis				MCC Orbital Analysis				SHAO Orbital Analysis
Station Location	Station Number	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	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
Yarragadee	7090	1.9	8.6	1.9	99.9	1.9	19.1	2.2	100.0	2.0	14.8	2.5	97.6	1.9	15.2	2.1	95.5
Riyadh	7832	3.3	12.9	1.0	99.9	3.0	24.1	4.7	99.9	3.8	21.8	7.1	97.0	3.4	21.9	2.1	96.1
Wettzell	8834	2.8	16.0	3.9	99.6	2.8	17.7	3.9	100.0	2.5	10.7	3.1	96.5	2.6	19.7	3.4	96.2
Graz	7839	1.1	7.7	2.2	100.0	1.1	11.7	2.0	100.0	2.1	7.2	1.4	100.0	1.7	15.0	2.5	95.7
Zimmerwald_423 Zimmerwald_846	7810	2.7 3.2	9.5 11.4	2.1 6.1	100.0 100.0	2.4 2.6	10.4 13.0	2.4 4.5	100.0 100.0	3.1 3.4	7.4 7.1	2.6	95.2 95.4	2.4 2.4	13.7 11.5	4.6	95.2 95.2
Monument_Peak	7110	2.4	16.5	2.0	100.0	2.6	21.4	3.9	99.6	2.3	12.2	1.6	95.4	2.3	18.7	2.1	95.0
Herstmonceux	7840	2.1	10.1	1.9	100.0	1.8	14.3	2.9	100.0	2.4	9.8	1.7	98.2	2.3	15.6	2.5	94.8
Changchun	7237	7.8	35.0	11.1	100.0	8.9	36.3	11.4	100.0	4.9	26.7	5.6	83.3	5.8	27.5	8.4	94.0
Mount_Stromlo_2	7825	4.6	15.1	1.6	99.5	3.2	19.7	7.4	99.9	3.9	14.7		92.1	3.7	15.0		95.3
San_Fernando	7824	2.5	32.5	17.4	100.0	3.6	27.7	18.6	100.0	3.1	22.1	4.2	96.2	4.7	30.1	14.1	98.7
Simosato	7838	4.9	17.1	5.9	99.8	3.8	22.8	5.6	99.7	4.7	18.8	8.7	85.3	5.3	18.8	5.0	95.4
Matera_MLRO	7941	2.0	12.6	2.9	99.6	2.1	27.6	4.4	99.6	2.3	12.8	4.2	97.4
Hartebeesthoek	7501	2.5	17.5	3.6	99.8	2.3	24.1	6.9	100.0	2.2	13.8	4.8	97.1	2.6	22.6	7.7	96.0
Greenbelt	7105	2.0	8.5	5.0	100.0	2.0	22.0	7.3	100.0	2.2	14.9	3.0	97.4	2.2	12.1	5.7	94.8
Beijing	7249	12.7	16.5	8.4	99.3	13.1	25.4	9.1	99.4	8.6	36.5	13.9	82.9	7.8	20.7	10.2	92.1
McDonald	7080	2.3	16.1	4.2	100.0	2.4	19.4	5.8	99.9	2.6	11.5	3.0	97.5	2.1	13.4	3.1	94.9
Shanghai	7837	6.8	17.0	12.1	98.8	6.7	20.2	12.3	100.0	5.7	13.3	11.0	88.3	5.7	18.5	12.8	94.1
Potsdam_3	7841	4.9	10.3	2.1	98.1	3.7	24.5	7.2	99.5	3.0	9.5	3.0	92.2
Riga	1884	7.0	30.0	21.0	100.0	6.2	39.5	25.5	100.0	5.4	37.4	26.4	90.1	7.1	27.1	13.7	96.3
Kiev	1824	40.5	38.2	18.5	100.0
Borowiec	7811	8.1	18.2	6.4	100.0	5.5	17.7	5.0	98.0	6.1	17.7	8.7	84.0	6.6	15.6	5.2	95.5
Grasse	7835	1.5	11.4	3.9	100.0	1.5	20.2	8.2	100.0	2.5	18.0	9.5	96.5	1.6	18.3	5.5	94.5
Maidanak_1	1864	14.8	45.2	23.9	100.0	15.9	31.7	21.7	98.8	10.3	32.8	15.8	80.7
Lviv	1831					16.2	49.3		100.0
Concepcion_423 Concepcion_847	7405	1.3	21.0		100.0	2.3 3.6	23.3 36.2		100.0 100.0	2.5 3.4	22.0 21.5	30.2	98.6 94.9
Koganei	7308	6.2	25.4		100.0	5.2	29.3		100.0	3.8	19.0		89.5	3.7	23.1		93.1