International Laser Ranging Service

SLR Global Performance Report Card

October 1, 2010 through September 30, 2011

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	11630	2208	2874	16712	204508	25117	18939	248564	203706	6.2	8.0	9.4
Zimmerwald_532	7810	7731	1514	3018	12263	145601	23856	21418	190875	195382	5.5	9.0	11.4
Mount_Stromlo_2	7825	5945	1045	462	7452	62313	9384	2230	73927	51375	3.8	5.3	7.3
Matera_MLRO	7941	4470	1306	1353	7129	66563	15437	11217	93217	108518	1.3	3.2	5.4
Graz	7839	4921	758	1319	6998	96043	8590	9012	113645	88847	2.3	4.3	5.1
Changchun	7237	5567	527	665	6759	60787	3934	3272	67993	42206	7.7	11.7	15.4
Wettzell	8834	3951	882	797	5630	49870	7694	4181	61745	52825	8.0	10.8	13.9
Herstmonceux	7840	3416	665	1335	5416	54148	8172	4983	67303	56244	6.9	11.9	14.8
Monument_Peak	7110	3213	671	555	4439	57876	7423	3413	68712	48953	5.7	25.1	14.9
San_Juan	7406	2513	566	655	3734	36533	6915	5131	48579	50236	5.8	10.2	10.4
Hartebeesthoek	7501	2484	627	403	3514	37985	7284	3056	48325	41649	6.2	11.6	12.1
Greenbelt	7105	2902	314	231	3447	56028	3078	1451	60557	29467	4.9	9.2	10.8
Shanghai_2	7821	2041	298	500	2839	21243	1835	3185	26263	25987	4.7	11.5	11.7
Arequipa	7403	2183	166		2349	29847	1275		31122	12305	5.2	9.9	8.0
Grasse_MEO	7845	962	580	691	2233	32737	6808	3104	42649	37523	6.5	16.7	15.0
Concepcion_847	7405	1305	521	102	1928	18144	7409	707	26260	24768	8.4	18.7	25.0
Concepcion	7405	25			25	143			143	62
McDonald	7080	1252	419	231	1902	12574	3485	854	16913	15365	9.7	11.6	13.4
Katzively	1893	1416	195	197	1808	20696	1596	1445	23737	16811	34.7	86.6	40.9
Haleakala	7119	1335	385		1720	21104	4474		25578	15538	4.1	8.9	11.3
San_Fernando	7824	1537	161	18	1716	19678	837	56	20571	8046	5.7	11.7	16.6
Riga	1884	1531	145	5	1681	31014	1624	36	32674	11537	7.4	12.1	12.1
Potsdam_3	7841	1377	198	77	1652	31882	2417	705	35004	16819	8.3	12.2	14.8
Simosato	7838	1100	419	79	1598	26919	8425	711	36055	29701	5.1	7.8	10.0
Simeiz	1873	1155	291	6	1452	15767	2331	37	18135	9685		43.5	45.7
Kiev	1824	724	111	71	906	5716	542	209	6467	3926	11.1	22.2	22.2
Koganei	7308	527	184	194	905	11281	2848	1870	15999	18554	8.1		13.3
Altay	1879	202	211	449	862	2226	1413	2068	5707	13946			31.6
Papeete	7124	571	185		756	10189	2620		12809	8402	4.1	8.0	9.3
Beijing	7249	626	66	20	712	8134	489	148	8771	4194
Tanegashima	7358	373	82	76	531	5499	992	743	7234	7311	3.9	3.7	4.7
Komsomolsk	1868	59	119	277	455	467	774	1207	2448	7808			36.2
Koganei	7328	128	34		162	1863	373		2236	1318
FTLRS_Tahiti	7822	67	29		96	1213	268		1481	960	4.0	11.3	15.2

 

 

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
Grasse_MEO	7845	14	70
McDonald	7080	27	43	9	34.4
Matera_MLRO	7941	3	6

 

 

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	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95	10.0	20.0	10.0	95
Yarragadee	7090	3.9	20.1	2.6	100.0	2.1	9.5	4.4	100.0	4.7	28.7	3.7	99.0	2.6	17.4	2.3	98.1	1.9	12.4	3.1	95.5
Zimmerwald_532	7810	2.8	18.1	8.2	99.8	1.3	5.9	5.4	99.9	3.2	22.2	7.7	99.3	2.3	11.1	2.7	98.5	1.4	10.7	2.7	95.9
Mount_Stromlo_2	7825	7.7	21.1	5.8	96.5	6.0	15.0	4.3	98.5	4.4	26.3	5.4	88.5	4.9	16.5	3.9	89.3	4.7	14.6	3.1	92.2
Matera_MLRO	7941	3.3	21.5	2.2	99.5	1.9	8.5	4.9	99.7	3.8	28.5	4.6	97.9	2.6	17.3	4.7	98.5	2.4	29.2	4.9	97.1
Graz	7839	2.1	17.8	3.9	100.0	0.9	6.0	6.0	100.0	2.5	25.4	5.5	97.0	1.9	13.5	2.3	97.9	0.9	12.9	3.2	96.7
Changchun	7237	5.0	30.4	11.9	99.0	2.6	19.3	8.9	100.0	4.7	20.7	5.3	92.3	3.9	33.7	14.8	97.7	2.6	29.4	17.4	95.8
Wettzell	8834	2.8	18.4	12.5	99.9	1.9	9.5	11.2	99.7	2.7	24.0	10.2	99.2	2.5	11.9	8.7	98.2	1.3	14.3	5.0	96.4
Herstmonceux	7840	3.3	19.0	5.7	99.9	1.8	5.5	4.7	100.0	2.6	18.4	5.8	100.0	2.7	11.9	2.2	98.7	1.9	13.5	3.8	95.4
Monument_Peak	7110	5.1	21.6	7.2	100.0	2.2	16.3	2.4	100.0	5.3	27.4	4.3	97.8	2.5	20.2	5.1	97.4	2.4	15.4	3.4	96.7
San_Juan	7406	8.4	27.6	33.1	99.9	4.2	23.8	30.3	99.5	6.8	33.5	28.8	76.9	6.0	23.5	6.0	95.0	6.2	23.3	8.6	95.0
Hartebeesthoek	7501	4.0	19.2	7.7	99.9	2.2	11.3	4.0	99.9	4.7	28.0	7.3	97.3	2.3	18.5	8.4	98.0	2.6	19.4		97.2
Greenbelt	7105	5.5	22.9	4.6	99.7	2.6	10.4	3.6	99.6	4.8	21.1	13.8	97.7	3.0	15.3	5.9	95.1	2.6	14.3	3.3	95.0
Shanghai_2	7821	7.5	39.7	38.4	98.9	4.6	26.5		100.0					7.3	33.1	15.4	100.0	3.9	17.3	19.6	97.9
Arequipa	7403	4.9	22.9	16.0	99.9	1.9	16.9	18.1	99.9	4.9	24.9	8.8	96.4	2.7	21.5		95.5	1.6	23.6	13.7	96.3
Grasse_MEO	7845	5.2	21.9	5.3	99.5	3.5	19.7	8.2	99.8	4.4	22.4	6.1	99.1	3.4	29.2	10.9	97.2	2.3	16.4	3.1	94.8
Concepcion_847	7405	4.3	27.7	6.8	92.1	3.4	19.2	7.1	100.0					3.5	17.5	22.4	100.0
McDonald	7080	3.6	23.4	10.8	99.5	3.2	12.7	3.3	100.0	5.2	25.2	6.3	97.6	3.5	21.5	9.2	96.6	2.6	15.0	4.0	94.5
Katzively	1893	12.9	21.3	27.9	99.0	10.0	19.4		98.5	9.3	25.8	42.5	86.7	10.3	21.1	17.4	90.7	9.2	19.1	14.9	95.6
Haleakala	7119	4.2	21.0	3.6	99.7	2.2	9.7	4.4	99.9	4.7	30.6	6.4	96.6	3.2	23.2	7.2	99.6	4.8	27.6		95.3
San_Fernando	7824	4.5	25.3	15.8	100.0	3.4	13.6	18.8	100.0	4.4	20.8		98.6	4.5	16.1	14.5	99.7	4.5	27.7		97.5
Riga	1884	13.7	20.3	30.2	98.4	9.3	15.5	29.6	100.0	10.5	23.2	28.9	78.5	9.1	12.6	20.9	90.1	8.9	13.6		94.3
Potsdam_3	7841	3.9	9.7	8.8	100.0									2.2	5.9	7.0	97.1
Simosato	7838	6.6	23.2	13.7	99.9	3.0	15.7	9.1	99.9	5.9	23.9	13.5	97.9	5.1	22.6	14.6	98.7	4.9	14.6		96.0
Simeiz	1873	57.3	54.1	12.9	83.3	69.5	46.8		97.2	0.5	15.9	1.5	7.2	54.0	50.7	21.8	83.4	28.1	29.6		61.9
Kiev	1824	20.7	31.8	20.8	93.4	10.8	30.8	28.7	93.6	7.2	37.6	15.8	75.6	19.8	36.6	32.6	92.8
Koganei	7308					3.1	53.9	26.4	100.0
Altay	1879	16.9	53.1	27.4	93.1									4.6	20.1	11.6	97.8
Papeete	7124	3.3	14.9	5.8	100.0	1.9	11.4	10.7	100.0	4.7	26.2	11.7	99.0	253.8	25.2	8.0	99.3	4.6	20.3		97.8
Komsomolsk	1868	15.7	62.6	33.6	97.4	8.0	45.6	42.3	98.4					6.7	41.3	16.2	91.8
FTLRS_Tahiti	7822	5.3	23.6		99.5