International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2009 through March 31, 2010

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 Ananlysis Cente's 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	10820	2090	1595	14505	237142	25466	13578	276186	177258	4.9	8.8	8.9
Zimmerwald_532	7810	5425	1094	1173	7692	110687	15612	10418	136717	111763	5.2	8.7	11.3
Mount_Stromlo_2	7825	5727	1047	363	7137	64437	10186	2690	77313	55313	3.4	2.8	5.6
Changchun	7237	5982	651	439	7072	66532	4842	2085	73459	38352	6.3	12.7	16.0
San_Juan	7406	4310	972	1188	6470	65231	9838	7401	82470	74946	9.6	8.0	8.2
Greenbelt	7105	4743	696	422	5861	104364	6705	2798	113867	52232	5.2	9.1	10.1
Graz	7839	4126	581	473	5180	79036	5964	3526	88526	48823	2.0	4.3	5.1
Herstmonceux	7840	3604	757	605	4966	60314	8903	2416	71633	44806	5.4	10.2	13.1
Wettzell	8834	3924	707	299	4930	55858	5581	1305	62744	34970
Concepcion_847	7405	2978	1009	500	4487	36961	12571	3605	53137	55466	5.9	14.4	17.5
Concepcion	7405	377	108	3	488	3617	797	17	4431	2956
Matera_MLRO	7941	2612	821	396	3829	38277	9456	3330	51063	47808	1.1	3.6	4.8
San_Fernando	7824	3058	288	101	3447	42035	1625	463	44123	17995	5.8	11.5	14.8
Potsdam_3	7841	2465	413	66	2944	49880	4177	451	54508	23524	10.8	14.4	17.4
Koganei	7308	1658	363	387	2408	25816	3342	3432	32590	31774	9.4	13.3	15.4
Hartebeesthoek	7501	1815	432	107	2354	27975	4305	692	32972	20274	7.4	12.8	13.1
Haleakala	7119	1838	410		2248	32650	4743		37393	18964	5.8	9.9	10.3
Katzively	1893	1724	168	257	2149	27100	1271	1663	30034	18959	37.0	48.0	39.8
Monument_Peak	7110	1418	360	318	2096	25671	4203	2402	32276	27049	5.6	15.1	16.8
Grasse_MEO	7845	783	521	447	1751	24815	7178	2457	34450	33191	6.6	14.5	14.6
Riyadh	7832	1245	314	183	1742	15897	2518	1077	19492	15518	9.7	12.2	14.4
McDonald	7080	1070	356	231	1657	11797	3636	906	16339	15341	10.0	13.4	15.0
Shanghai_2	7821	1262	169	115	1546	14170	1127	654	15951	9795	8.1	11.6	12.0
Kiev	1824	1306	139	10	1455	12375	734	28	13137	5416	10.6	22.8	24.7
Simeiz	1873	900	179	83	1162	12125	1424	547	14096	9616		43.8	48.0
Riga	1884	768	92	1	861	17524	1021	11	18556	6509	6.5	11.0	12.7
Borowiec	7811	734	58		792	8658	372		9030	3440	19.4	23.4	27.4
Tanegashima	7358	452	99	159	710	5353	708	877	6938	7471	16.3
Simosato	7838	452	121	3	576	8326	1636	19	9981	6132
Lviv	1831	423	22		445	7433	179		7612	2563
Beijing	7249	384	41	11	436	4972	395	78	5445	2790
Arequipa	7403	399	4		403	3170	20		3190	1063
Altay	1879	59	95	145	299	561	562	519	1642	3920			27.4
Papeete	7124	204	50	14	268	3221	620	61	3902	2526	5.7	10.4	12.1
Komsomolsk	1868	21	90	61	172	112	506	194	812	2038			33.8
Grasse	7829	101			101	1906			1906	601
Helwan	7831	2			2	10			10	3
NRL	7865	1			1	25			25	2

 

 

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	34	58	18	51.9
Matera_MLRO	7941	1	6	6	44.8

 

 

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	3.8	20.3	3.6	100.0	2.4	9.7	2.5	100.0	3.9	15.6	3.5	99.6	2.6	13.2	3.7	97.9	2.2	12.3	3.0	95.3
Zimmerwald_532	7810	2.4	13.8	3.1	99.2	1.6	10.3	3.2	99.5	2.4	15.3	2.4	97.4	2.4	6.6	2.7	99.0	1.2	9.5	2.2	95.5
Mount_Stromlo_2	7825	5.6	17.6	5.0	99.9	4.3	12.2	3.6	99.9	3.9	13.5	4.9	97.7	3.5	11.4	3.2	95.6	2.9	10.9	4.2	94.5
Changchun	7237	5.8	31.4	11.0	99.6	3.4	26.9	11.8	99.7	5.4	22.8	5.2	93.7	4.3	27.3	12.4	97.9	3.0	24.6	6.6	96.0
San_Juan	7406	8.4	33.4	4.9	100.0	4.1	41.3	8.3	99.6	9.2	26.8	5.9	92.4	4.9	27.8	10.4	97.7	3.9	28.4	6.5	94.9
Greenbelt	7105	4.2	14.9	4.8	100.0	2.5	11.9	3.8	100.0	3.7	14.4	4.0	99.8	2.5	19.9	3.6	97.3	2.2	17.0	9.3	94.1
Graz	7839	2.7	17.1	3.3	100.0	1.1	7.4	3.7	100.0	1.6	14.2	4.8	99.8	1.7	6.3	4.0	98.5	0.9	8.9	3.2	95.0
Herstmonceux	7840	2.7	14.7	3.8	100.0	1.3	7.6	2.2	100.0	2.7	12.3	2.6	100.0	2.1	8.6	3.4	98.8	1.4	9.0	2.6	96.0
Concepcion_847	7405	3.7	21.3	4.8	100.0	1.8	16.9	6.4	100.0	3.6	13.2	4.1	99.6	2.9	30.5	7.2	99.6
Concepcion	7405																	2.1	27.2	3.7	97.3
Matera_MLRO	7941	3.0	17.2	3.6	100.0	1.9	9.3	4.5	100.0	2.6	13.9	7.3	99.3	2.6	14.6	5.9	98.1	2.4	26.4		99.0
San_Fernando	7824	6.6	16.2	10.1	100.0	5.8	20.8	8.7	100.0	2.4	17.2	5.3	98.3	3.5	22.5	13.2	98.2
Potsdam_3	7841	4.1	21.0	11.1	99.8	2.8	10.8	10.4	99.5	4.7	14.0	4.0	99.1	2.9	11.3	10.2	96.5
Koganei	7308	4.2	27.0	9.2	99.8	3.4	15.0	4.7	99.8	5.6	17.1	8.3	92.6	3.8	19.3	8.6	97.8	3.7	18.1	9.9	97.7
Hartebeesthoek	7501	4.1	18.1	6.3	100.0	2.4	11.1	5.5	100.0	3.8	18.8	4.9	99.5	2.4	17.4	5.6	96.0	1.9	23.5	8.5	96.6
Haleakala	7119	3.4	27.7	3.8	99.5	1.9	13.1	4.1	99.5	3.0	15.1	4.2	99.3	2.9	21.3	9.5	100.0
Katzively	1893	10.2	15.2	13.3	98.6									7.1	18.0	15.7	94.4
Monument_Peak	7110	4.7	19.7	7.2	100.0	2.2	7.8	5.0	99.6	3.9	14.0	5.5	99.0	2.3	11.5	5.5	97.9	1.7	14.5	5.0	94.8
Grasse_MEO	7845	4.5	15.4	5.7	100.0	2.7	12.9	6.4	99.8	2.8	10.6	6.4	99.9	2.9	10.9	4.7	96.3	2.3	13.6	3.6	93.6
Riyadh	7832	4.1	23.1	5.6	100.0	2.6	8.2	6.2	100.0	3.2	21.2	5.5	98.9	3.1	18.6	11.0	97.6	2.8	24.5	13.0	90.1
McDonald	7080	4.2	18.1	6.8	99.7	3.0	10.1	2.9	100.0	4.4	15.7	3.5	99.4	2.8	13.3	4.6	96.5	2.3	12.9	4.9	95.8
Shanghai_2	7821	11.2	46.2		100.0	4.6	27.0		100.0	4.6	31.4		83.6	11.3	45.8		95.2
Kiev	1824	21.7	51.3	24.5	89.2	27.9	38.4	31.5	89.6	7.8	26.1	18.4	70.6	18.5	52.7	28.5	83.9
Simeiz	1873	38.0	42.8	20.1	80.2	66.8	37.4	36.4	98.8	4.6	22.5	17.3	27.6	57.2	37.8	37.4	84.3
Riga	1884	8.0	26.1	12.8	98.7	5.7	31.5	16.1	98.8	7.7	17.4	10.5	98.7	5.2	27.1	16.4	97.7
Altay	1879	6.8	16.1	17.8	100.0					6.6	15.2	12.0	98.1	4.1	15.4	11.8	98.2
Papeete	7124	2.3	16.4		100.0	1.8	13.4		100.0	2.6	7.8		100.0	2.1	17.5		100.0	4.2	28.4		98.4
Komsomolsk	1868	13.5	67.0	51.3	99.1									9.4	21.1	15.6	95.0