International Laser Ranging Service

SLR Global Performance Report Card

January 1, 2008 through December 31, 2008

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	10460	2078	1496	14034	211998	26440	13824	252262	176895	4.8	8.9	9.6
San_Juan	7406	5939	1121	1458	8518	95627	12872	9660	118159	100806	8.4	10.8	11.6
Mount_Stromlo_2	7825	5971	1246	443	7660	78010	12809	3618	94437	68583	8.9	7.6	6.2
Graz	7839	4735	653	538	5926	91480	7138	4589	103207	60632	2.1	3.4	5.2
Zimmerwald Zimmerwald_423 Zimmerwald_532 Zimmerwald_846	7810	4254 266 3988 265	830 74 756 73	798 46 752 46	5882 386 5496 384	77529 5323 72206 5243	10904 946 9958 1022	6889 362 6527 329	95322 6631 88691 6594	75844 5061 70783 5048	5.0   5.9	8.0   9.0	11.0   12.0
Wettzell	8834	4453	1011	366	5830	48720	7492	1604	57816	39061	5.1	12.7	18.5
Herstmonceux	7840	3952	870	426	5248	58544	10653	1780	70977	45460	5.4	10.3	13.5
Changchun	7237	3982	605	435	5022	42011	4090	2025	48126	30121	9.1	10.9	12.4
Riyadh	7832	3157	820	383	4360	38015	6802	2120	46937	35969	9.3	12.5	14.7
Greenbelt	7105	3376	511	251	4138	75612	5455	1653	82720	38578	4.8	9.1	9.9
Matera_MLRO	7941	2880	799	77	3756	37578	8832	625	47035	33609	1.1	3.4	4.9
San_Fernando	7824	3009	440	72	3521	44524	3187	307	48018	21802	5.8	11.1	14.1
Concepcion_847	7405	1775	816	353	2944	21900	9743	2579	34222	40508	6.2	15.3	19.2
Haleakala	7119	1819	403		2222	30009	4600		34609	17891	5.1	10.2	11.9
Potsdam_3	7841	1826	313	7	2146	34556	3618	66	38240	16312	12.7	13.4	17.4
Beijing	7249	1609	311	108	2028	22636	2705	789	26130	16605	7.1	33.1	16.3
Monument_Peak	7110	1531	363	115	2009	25735	4026	903	30664	19617	5.4	16.4	16.0
Katzively	1893	1175	310	226	1711	18037	2562	1387	21986	17445	36.9	86.6	42.5
McDonald	7080	1073	335	201	1609	11797	3227	859	15883	14246	9.9	11.7	12.6
Arequipa	7403	1425	130		1555	16997	736		17733	6561	5.7	7.6	5.6
Hartebeesthoek	7501	1194	254	17	1465	13857	1827	89	15773	8433	5.0	9.9	10.5
Shanghai_2	7821	1240	156	29	1425	15427	1519	162	17108	8678	11.7	14.8	19.2
Simeiz	1873	816	282	85	1183	10251	2463	1205	13919	11015		56.6	54.2
Kiev	1824	725	90		815	7696	563		8259	3527	19.9	21.6	23.4
Ajaccio	7848	770	4		774	11162	27		11189	3564	4.4	10.8	10.9
Koganei	7308	472	125	60	657	6718	1118	422	8258	6734	9.3	12.9	15.0
Kunming	7820	593	60		653	7890	384		8274	3493	23.3	29.2	32.6
Tanegashima	7358	377	64	74	515	5829	612	473	6914	5287	3.0	5.0	5.8
Burnie_Tafe	7370	494	4		498	6321	13		6334	2121
Papeete	7124	347	98	10	455	5884	1363	55	7302	4718	3.5	7.9	8.6
Riga	1884	319	57	4	380	6858	851	25	7734	3598	6.6		12.4
Borowiec	7811	143	65		208	1794	645		2439	1869	23.6	21.1	26.3
Lviv	1831	182	22		204	2878	168		3046	1243	20.2	60.3	63.1
Simosato	7838	123	40		163	2520	589		3109	1979	7.0	9.0	11.7
Grasse_LLR	7845	36	32	9	77	825	325	47	1197	1119	6.2	15.1	13.3
Komsomolsk	1868		27	5	32		155	16	171	390			29.9
Helwan	7831	21			21	149			149	30	6.0
Maidanak_1	1864		3		3		23		23	46			63.0

 

 

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	43	71	24	64.5

 

 

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		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	3.4	29.4	2.9	99.7	2.2	11.0	1.6	99.9	3.8	17.4	3.1	98.4	1.5	15.0	4.2	97.5	2.2	12.7	2.9	95.4
San_Juan	7406	6.0	37.0	6.2	99.7	3.9	20.2	9.2	99.3	6.3	16.0	3.7	93.6	3.7	16.7	10.3	96.8	4.2	26.0	11.5	94.6
Mount_Stromlo_2	7825	2.7	29.3	6.1	99.9	2.5	10.0	3.6	100.0	3.5	20.4	5.0	94.7	1.8	8.5	5.9	98.1	2.3	16.8	3.0	95.6
Graz	7839	2.2	18.9	5.4	99.8	1.3	7.6	3.0	100.0	2.4	8.9	4.9	100.0	1.9	10.9	4.2	98.7	1.5	14.1	3.4	96.2
Zimmerwald_532	7810	2.6	17.7	3.1	100.0	1.6	6.9	2.2	100.0	2.5	11.8		95.7	1.0	5.3	6.8	99.2	1.6	10.9	2.9	96.9
Wettzell	8834	3.2	30.6	7.7	100.0	2.7	11.2	2.5	100.0	3.4	18.1	3.7	91.1	1.7	10.6	1.2	97.6	1.8	16.0	3.5	95.3
Herstmonceux	7840	2.9	23.4	4.1	99.8	1.7	7.5	1.7	100.0	3.4	18.2	4.2	98.6	1.8	8.8	3.6	98.7	1.9	11.2	2.2	96.2
Changchun	7237	7.6	37.1	14.6	99.7	6.4	17.3	8.4	99.4	6.3	17.5	6.4	97.8	2.2	16.9	9.1	96.5	4.1	25.2	13.3	97.0
Riyadh	7832	3.4	35.2	5.9	99.9	2.7	13.1	5.0	100.0	3.6	20.9	7.2	100.0	1.9	15.5	7.0	96.0	3.0	26.5	9.0	95.9
Greenbelt	7105	3.2	23.9	5.7	100.0	2.1	12.8	4.8	99.9	3.1	16.6	3.2	91.7	1.6	16.9	8.1	98.0	2.0	12.7	3.6	95.3
Matera_MLRO	7941	3.4	22.3	5.9	99.8	2.4	12.6	3.8	99.8	3.4	18.6	2.8	98.8	1.6	11.3	5.1	97.4	2.6	25.5	4.1	98.1
San_Fernando	7824	3.3	32.8	17.9	100.0	2.8	13.0	14.2	99.7	2.7	20.2	8.4	99.3	2.9	14.4	14.2	99.2	2.1	24.3	15.2	97.1
Concepcion_847	7405	3.0	34.6	6.1	99.8	1.7	21.4	5.6	100.0	4.5	16.9	5.9	93.4	2.9	22.4	2.8	99.5
Haleakala	7119	5.0	34.9	7.6	99.8	2.5	12.3	4.2	99.8	3.0	7.4	3.1	100.0	2.6	20.9	13.1	99.3	3.2	32.3	6.7	96.6
Potsdam_3	7841	4.1	25.8	11.7	100.0	2.7	7.8	4.4	100.0	3.7	18.2	5.6	85.3	0.4	5.6	4.1	94.9
Beijing	7249	12.3	35.7	14.2	96.4	9.8	21.4	15.1	95.3	5.8	13.5	13.4	81.2	2.8	10.6	24.8	93.0	7.8	23.1	13.7	91.4
Monument_Peak	7110	3.2	26.1	6.7	99.6	2.2	10.4	5.0	100.0	2.8	13.8	8.5	97.7	1.8	11.1	6.1	99.3	2.1	16.0	3.8	97.3
Katzively	1893	9.6	45.5	16.0	99.7	8.0	23.0		100.0	7.6	37.0		77.3	2.8	13.3	12.4	94.5	6.9	30.3	19.3	93.6
McDonald	7080	3.8	26.6	6.1	100.0	2.8	10.6	8.1	100.0	3.9	12.8	4.0	99.2	2.2	8.4	11.0	95.3	2.5	13.1	5.8	95.0
Hartebeesthoek	7501	3.1	40.7	9.8	99.6	1.6	9.2	5.6	99.6					0.6	16.6	13.1	100.0
Shanghai_2	7821	14.1	40.1	13.0	100.0									3.4	31.0	28.9	98.7	5.2	24.1	14.8	95.3
Simeiz	1873	62.5	53.3	29.4	91.8	82.0	48.4	18.8	98.2	5.4	32.9	12.2	35.5	35.2	43.4	13.1	82.5	32.1	30.0	11.1	62.9
Kiev	1824	19.5	46.9		97.4	8.2	39.1		96.4
Koganei	7308	5.2	32.0	11.6	100.0	3.9	14.3	10.9	100.0	6.0	18.7		98.7	1.0	2.7	12.4	99.2	2.1	24.1	8.6	95.0
Tanegashima	7358	3.4	31.8	18.6	100.0	2.3	28.2	11.3	100.0
Papeete	7124	2.8	23.6		100.0	1.8	10.0		100.0	5.2	16.8		99.5	2.7	12.4		99.7	4.7	23.3		97.8
Riga	1884					2.2	36.2	27.9	100.0
Simosato	7838	4.1	30.5		100.0	3.5	15.7		100.0
Grasse_LLR	7845	4.0	30.9		100.0	2.5	12.0		100.0	3.5	8.1		100.0	0.6	4.2		99.0	2.0	11.9		96.7