International Laser Ranging Service

SLR Global Performance Report Card

January 1, 2007 through December 31, 2007

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	9157	1799	1333	12289	185376	23606	12582	221564	159023	4.8	8.8	9.5
Zimmerwald_423 Zimmerwald_846	7810	5812 5736	1192 1199	686 625	7690 7560	91464 90428	14378 16171	4363 3563	110205 110162	75943 75403	11.5 24.9	14.3 21.6	17.6 24.7
San_Juan	7406	5022	892	1173	7087	79811	11156	7721	98688	83366	8.5	24.9	14.2
Mount_Stromlo_2	7825	4882	1193	502	6577	61919	11713	3325	76957	61113	3.2	4.7	6.5
Graz	7839	4811	825	529	6165	96207	9263	4380	109850	64786	2.3	4.0	8.0
Wettzell	8834	4152	1041	518	5711	43944	8055	2288	54287	42329	5.8	12.9	18.5
Changchun	7237	4361	772	541	5674	48622	6321	2810	57753	40822	14.1	14.4	17.5
Riyadh	7832	3773	970	658	5401	48095	8135	3881	60111	51027	11.2	14.2	17.2
Herstmoncex	7840	3858	932	413	5203	60840	11396	1843	74079	47268	6.1	10.1	12.9
Concepcion_847 Concepcion_423	7405	2188 21	1078 4	238	3504 25	30884 185	14860 19	1897	47641 204	50858 120	5.4 4.1	10.1 8.3	12.0 10.4
Matera_MLRO	7941	2261	753	232	3246	31590	8142	2076	41808	37355	2.1	5.0	5.9
San_Fernando	7824	2587	523	52	3162	38147	4072	286	42505	21414	5.2	11.5	15.1
Monument_Peak	7110	2482	484	192	3158	48238	5188	1664	55090	31832	5.3	13.2	15.9
Arequipa	7403	2065	218		2283	24398	1481		25879	10793	5.5	7.9	6.9
Greenbelt	7105	1830	321	69	2220	41050	3412	400	44862	19619	5.6	8.7	9.5
Beijing	7249	1702	339	154	2195	23782	3267	1213	28262	20292	7.3	16.9	16.6
Potsdam_3	7841	1724	304		2028	32666	3532		36198	15563	12.2	14.7	19.2
McDonald	7080	1378	412	236	2026	15249	3735	925	19909	16535	15.8	13.1	12.5
Hartebeesthoek	7501	1535	304	35	1874	19676	2708	214	22598	12756	6.0	7.8	10.4
Haleakala	7119	1488	350		1838	23479	4056		27535	15518	4.8	9.9	9.9
Katzively	1893	1192	287	36	1515	19542	2453	227	22222	12395	31.1	42.8	40.2
Koganei	7308	703	248	164	1115	10638	2529	1509	14676	16316	9.7	13.1	15.5
Shanghai_2	7821	957	53	3	1013	11459	486	22	11967	4865	14.6	22.1	24.8
Simosato	7838	717	266	1	984	13349	3914	11	17274	12255
Maidanak_1	1864	509	216	141	866	6086	1672	600	8358	7849		51.1	69.5
Riga	1884	557	111		668	9965	1134		11099	4912	7.4	9.0	12.0
Simeiz	1873	450	151	11	612	5375	1348	166	6889	4944		54.8	58.7
Borowiec	7811	360	99	4	463	5910	1039	14	6963	3961	13.8	19.8
Tanegashim	7358	240	70	54	364	4071	683	464	5218	4896	3.3	4.5	5.8
Lviv	1831	127	18		145	2344	166		2510	1055	14.3	47.6	70.0
Burnie_Tafe	7370	100	2		102	1957	12		1969	686	5.9	11.7	17.7
Helwan	7831	54			54	379			379	113	6.0	8.4
Kunming	7820	18	2		20	262	15		277	118	18.5	16.9	37.4
Papeete	7124	19			19	254			254	83
NRL	7865	9			9	131			131	10
Kiev	1824	1			1	12			12	6

 

 

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	39	79	38	66.9
Matera_MLRO	7941	1	2

 

 

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	2.8	30.9	4.6	100.0	1.9	9.1	2.1	100.0	3.5	15.0		99.8	2.3	12.4	1.9	98.3	2.3	16.5	1.6	95.4
Zimmerwald_423 Zimmerwald_846	7810	3.3 4.2	24.1 25.8	4.1 5.2	100.0 100.0	2.7 3.3	6.6 7.1	1.5 2.3	100.0 99.9	3.5 4.0	14.7 13.7		99.4 99.3	3.2 3.6	6.9 7.7	2.4 3.0	96.9 95.5	2.7 3.6	13.4 13.8	1.9 2.8	95.3 94.4
San_Juan	7406	3.9	30.9	6.4	100.0	2.9	28.7	7.1	99.8	4.4	15.2		97.3	4.6	18.2	7.2	99.8	3.8	23.9	6.3	96.0
Mount_Stromlo_2	7825	4.1	30.5	6.2	100.0	4.0	13.3	3.8	99.7	4.2	12.7		96.4	4.4	14.4	2.1	94.5	3.6	17.1	2.6	95.3
Graz	7839	1.8	26.0	4.8	100.0	1.1	5.8	1.1	100.0	2.4	15.0		98.6	1.9	6.2	2.1	99.1	1.4	10.2	2.2	95.4
Wettzell	8834	3.5	32.5	7.6	100.0	3.0	14.0	4.5	100.0	3.8	14.0		99.5	2.9	11.7	2.0	97.5	2.7	19.5	3.4	96.5
Changchun	7237	7.8	40.7	9.1	100.0	7.0	22.2	10.0	99.8	8.3	24.4		96.6	7.2	18.7	5.6	94.9	6.0	23.1	5.2	94.9
Riyadh	7832	3.5	45.5	8.7	100.0	2.7	16.0	4.0	100.0	3.9	16.1		99.2	3.3	18.6	8.1	96.5	2.6	28.0	4.4	96.0
Herstmoncex	7840	2.1	24.2	8.6	100.0	1.5	7.1	4.3	100.0	2.9	11.4		99.3	2.5	8.3	3.6	99.0	1.9	12.0	2.2	95.3
Concepcion_423 Concepcion_847	7405	2.4	31.7	3.4	100.0	1.5	12.8	2.4	100.0	3.5	17.6		99.8	2.5	18.5	3.4	100.0	2.1	26.3	5.4	97.4
Matera_MLRO	7941	2.3	33.5	10.5	100.0	1.8	11.5	9.5	100.0					2.3	12.0	7.5	98.0	1.5	20.1		100.0
San_Fernando	7824	2.7	39.1	14.4	100.0	2.9	15.6	6.7	100.0	3.9	27.3		99.2	3.8	12.2	6.5	98.5	3.0	25.6	7.8	95.6
Monument_Peak	7110	3.0	31.0	8.8	100.0	1.9	7.7	4.8	100.0	3.4	6.1		99.3	2.6	11.2	3.8	99.0	2.2	15.9	3.5	96.8
Arequipa	7403	2.8	40.2	15.9	100.0	2.8	28.3	8.7	100.0	8.1	30.2		62.1	3.0	13.0	6.4	96.1	2.0	19.5	8.6	95.6
Greenbelt	7105	2.1	31.4	4.9	100.0	1.6	13.1	4.4	100.0	2.5	14.0		100.0	2.1	14.5	7.5	99.4	1.7	12.6	3.2	96.8
Beijing	7249	7.5	40.8	23.2	100.0	6.8	25.1	6.1	97.3	6.1	19.8		88.0	8.0	18.9	9.6	97.1	6.3	28.4	5.6	95.0
Potsdam_3	7841	4.3	32.3	13.7	100.0	3.4	11.3	4.2	99.7	5.2	11.2		98.8	3.3	10.1	4.6	93.7
McDonald	7080	3.5	41.0	10.2	100.0	2.4	15.1	4.6	99.7	4.2	10.6		99.1	3.2	17.0	5.9	96.6	2.7	17.9	5.9	95.5
Hartebeesthoek	7501	2.4	42.2	14.5	100.0	2.1	23.0	7.5	100.0	3.7	13.0		98.5	2.0	18.0	3.8	98.9	1.8	23.1	8.0	94.7
Haleakala	7119	3.2	41.8	5.5	100.0	2.0	10.8	2.8	99.9	3.7	10.6		99.6	3.4	12.4		99.6	4.1	29.9	12.7	93.7
Katzively	1893	11.0	46.3	12.1	100.0	7.6	17.6	11.7	98.3	7.6	24.2		86.8	7.9	26.2	14.4	89.2	8.9	21.1	21.5	94.4
Koganei	7308	5.1	45.1	12.7	100.0	4.3	15.5	9.3	99.9	5.6	13.7		98.2	5.0	13.1	6.8	97.6	4.5	24.7	6.6	96.6
Maidanak_1	1864	24.8	50.0	12.5	100.0	23.5	32.4	17.7	89.7	10.0	25.3		57.3	25.5	33.5	13.6	80.6	23.4	27.9	11.1	78.7
Riga	1884					3.6	14.3	13.3	100.0	6.2	7.7		100.0	4.9	18.9	16.7	100.0	3.2	18.5	12.2	93.1
Simeiz	1873	25.1	48.9	49.5	100.0					4.8	34.7		35.0	51.2	61.6		78.2	28.4	25.4	16.7	61.1
Tanegashim	7358	2.0	36.5	30.0	100.0	1.6	26.1	29.7	100.0	5.7	22.0		98.2					3.4	33.5		92.4