International Laser Ranging Service

SLR Global Performance Report Card

April 1, 2005 through March 31, 2006

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	9555	1633	1233	12421	180529	20690	13590	214809	160139	4.6	8.6	9.2
Zimmerwald_423 Zimmerwald_846	7810	5541 5700	1142 1184	865 874	7548 7758	82172 83554	15623 17777	6931 6903	104726 108234	89914 94529	10.1 19.5	15.0 20.5	18.1 23.0
Mount_Stromlo_2	7825	5212	1545	711	7468	81011	21101	5720	107832	98543	3.3	6.4	8.6
Wettzell	8834	5557	948	397	6902	73002	6860	1721	81583	46023	3.0	10.5	16.8
Riyadh	7832	4712	1110	731	6553	63518	9700	4217	77435	60669	9.6	11.4	23.2
Graz	7839	5011	753	462	6226	96709	9399	3538	109646	63115	2.5	4.5	8.2
Herstmoncex	7840	4248	1029	447	5724	65002	13280	2179	80461	56192	8.5	13.2	16.2
Monument_Peak	7110	4355	738	236	5329	69866	6124	1634	77624	40484	6.3	11.6	13.9
Matera_MLRO	7941	2711	654	116	3481	37566	6219	753	44538	28892	1.1	4.9	7.0
Changchun	7237	2706	537	118	3361	28697	4503	590	33790	21445	12.2	13.6	14.3
Hartebeesthoek	7501	2037	389	122	2548	27599	3721	1174	32494	22469	6.0	7.9	9.7
Greenbelt	7105	2035	342	161	2538	44598	3794	1055	49447	25418	5.3	9.6	10.1
Potsdam_3	7841	2081	324	10	2415	41828	3852	57	45737	19383	11.5	7.2	9.7
San_Fernando	7824	1933	451		2384	27841	3403		31244	15427	6.7	12.1	15.6
Simosato	7838	1733	497	3	2233	32287	6882	25	39194	24100	10.3	12.3	13.7
Ajaccio	7848	1610	81		1691	29034	306		29340	9685
Riga	1884	1373	211	7	1591	27465	2772	30	30267	12482	8.3	16.5	13.6
McDonald	7080	929	322	227	1478	11972	3105	1084	16161	15115	13.9	12.8	13.1
Beijing	7249	1126	275	54	1455	14861	2671	365	17897	12092	15.4	98.5	40.9
Maidanak_1	1864	611	284	146	1041	6678	2319	516	9513	9366		49.9	51.3
Borowiec	7811	733	200		933	11503	2207		13710	7793	16.3	19.1	21.2
Concepcion_847 Concepcion_423	7405	456 272	304 34	13	773 306	5169 2301	3429 172	82	8680 2473	9320 1268	10.8 24.5	14.1 13.9	24.6 13.7
Simeiz	1873	525	196	12	733	6570	1721	74	8365	6058		47.5	56.1
Papeete	7124	579	107	1	687	9768	789	2	10559	4394	4.5	8.4	9.7
Tanegashim	7358	323	51	45	419	4109	375	206	4690	3102	3.0	3.5	6.0
Lviv	1831	279	120		399	4943	1027		5970	3580
Shanghai_2	7821	368	30		398	4276	258		4534	1844	14.2	25.7	25.7
San_Juan	7406	142	101	41	284	2106	1662	223	3991	5155	9.5	11.4	11.4
Helwan	7831	266			266	2795			2795	851	6.0
Grasse	7835	215	39		254	4148	278		4426	1729
Grnblt_TLRS4	7130	180	62		242	3028	634		3662	2180	4.5	10.4	9.9
Katzively	1893	166	23	4	193	2605	171	14	2790	1209	32.0	43.1	40.8
Urumqi	7355	135	56		191	1614	576		2190	1645
Koganei	7308	110	34	2	146	1476	334	17	1827	1409	12.2	15.1	17.4
Metsahovi	7806	123			123	1826			1826	405
Kiev	1824	99	22		121	902	120		1022	541
Wuhan_2	7231	81	18		99	869	110		979	527
Shanghai	7837	64	13	1	78	845	117	10	972	539

 

 

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	46	92	33	49.9

 

 

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				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
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	2.7	27.0	4.7	100.0	1.4	7.5	2.7	100.0	2.0	10.6	4.0	99.9	1.6	12.7	2.4	95.6
Zimmerwald_423 Zimmerwald_846	7810	3.7 4.1	27.2 26.5	8.5 7.3	100.0 99.9	3.1 3.2	11.4 6.3	6.1 5.2	100.0 100.0	3.6 3.9	14.7 8.6	7.1 5.1	99.8 99.7	2.8 3.7	11.5 10.4	3.8 5.2	94.9 95.7
Mount_Stromlo_2	7825	4.9	27.2	4.2	99.6	3.5	9.3	2.6	99.9	3.7	10.1	2.1	99.2	3.0	15.0	3.9	95.4
Wettzell	8834	3.3	24.6	5.0	99.5	2.5	9.5	3.2	99.9	3.1	10.0	2.9	99.6	1.9	15.5	4.7	95.2
Riyadh	7832	4.3	33.0	5.4	99.0	3.6	12.2	3.7	99.2	3.9	13.7	21.2	98.4	3.2	19.3	8.8	93.5
Graz	7839	2.0	18.3	3.7	100.0	1.0	7.2	3.2	100.0	1.6	7.0	3.7	99.9	1.2	12.3	4.0	95.5
Herstmoncex	7840	3.1	19.9	5.9	100.0	1.9	7.4	3.3	100.0	2.3	6.4	1.7	100.0	1.9	12.7	4.1	95.4
Monument_Peak	7110	3.6	24.6	6.5	100.0	2.7	9.6	2.8	100.0	3.4	15.3	4.4	99.6	2.5	12.0	3.2	95.3
Matera_MLRO	7941	3.2	23.8	8.6	99.6	2.2	12.1	4.6	99.8	2.9	19.8	2.4	99.9
Changchun	7237	9.1	45.9	13.3	99.9	8.6	29.9	11.6	99.9	10.9	30.8	13.8	99.3	6.1	26.9	16.1	93.9
Hartebeesthoek	7501	3.8	44.3	31.9	99.7	1.8	11.9	5.8	99.8	2.5	21.1	6.4	100.0	2.1	20.6	9.9	97.3
Greenbelt	7105	3.3	26.9	7.3	100.0	1.6	9.9	4.0	100.0	2.6	13.3	3.7	99.8	2.0	15.7	5.0	95.2
Potsdam_3	7841	5.6	28.9	8.4	99.8	3.9	12.1	4.4	99.5	4.5	15.0	5.8	97.7
San_Fernando	7824	3.5	36.2	10.4	100.0	3.8	19.6	14.6	100.0	4.8	23.5	9.6	100.0	3.3	29.9	17.1	97.0
Simosato	7838	5.8	21.4	13.5	99.9	3.6	13.9	4.0	99.8	5.8	15.8	5.9	99.8	4.3	20.7	7.0	94.0
Riga	1884	3.6	24.6	15.4	100.0	3.3	17.6	11.8	100.0	3.5	16.3	10.7	100.0	4.8	17.7	10.8	95.2
McDonald	7080	3.5	26.3	5.8	100.0	2.3	11.2	7.4	100.0	3.4	13.2	8.2	99.8	2.5	14.2	6.3	95.2
Beijing	7249	10.1	25.7	12.4	95.9	11.2	21.6	9.2	94.8	21.1	43.9	14.8	95.2	8.6	22.7	10.3	90.0
Maidanak_1	1864	13.5	46.1	16.8	94.0	12.9	27.2	21.6	97.7	17.6	31.1	18.6	98.1	9.8	24.4	12.4	90.7
Borowiec	7811	11.6	37.7	10.4	100.0	9.9	12.7	5.1	99.5	12.5	9.8	12.2	98.8	8.2	23.5	8.6	94.2
Concepcion_423 Concepcion_847	7405	2.0 6.6	12.9 26.2	43.4 22.3	100.0 99.4	3.9 5.3	13.8 14.1	12.0 13.8	100.0 99.7	6.1	27.7	10.4	99.5
Papeete	7124	2.4	24.9	19.2	100.0	2.0	10.3	5.7	100.0	3.1	20.1	11.5	100.0	1.3	30.1		95.2
Tanegashim	7358					1.4	17.8		100.0
Shanghai_2	7821					9.1	34.4		100.0
San_Juan	7406	5.3	38.6		100.0	2.1	29.4		100.0
Grnblt_TLRS4	7130					2.2	10.8		100.0					2.6	24.0		93.5
Koganei	7308					4.0	18.3		100.0	4.7	15.4		99.7	3.3	23.3		97.1