International Laser Ranging Service

SLR Global Performance Report Card

October 1, 2003 through September 30, 2004

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	8789	1384	1151	11324	164633	16956	9779	191368	132304	5.0	8.2	9.2
Riyadh	7832	4241	1147	701	6089	61965	10632	4263	76860	62540	9.8	11.3	14.9
Monument_Peak	7110	4778	937	366	6081	82938	8648	2987	94573	56721	6.2	12.5	13.4
Wettzell	8834	4350	926	405	5681	55745	6996	2280	65021	43572	3.7	10.0	15.6
Graz	7839	4037	674	375	5086	80053	8349	2884	91286	54133	2.2	3.6	7.1
Herstmoncex	7840	3842	846	308	4996	59775	10680	1490	71945	46051	7.7	12.6	15.5
Changchun	7237	3459	714	312	4485	47813	7722	1841	57376	39634	8.8	15.0	13.6
Greenbelt	7105	2981	457	166	3604	59512	4768	1551	65831	35202	13.0	15.4	15.6
Zimmerwald_423 Zimmerwald_846	7810	2475 3584	509 786	272 411	3256 4781	35419 58178	6627 11481	1601 2667	43647 72326	32149 54351	13.6 18.8	15.2 19.8	17.4 22.3
Simosato	7838	1854	573	24	2451	37431	9621	175	47227	31886	14.4	18.9	28.8
Hartebeesthoek	7501	1766	461	145	2372	25378	4777	1182	31337	24054	5.5		10.6
San_Fernando	7824	1969	250		2219	28711	1343		30054	11522	9.7	13.9	18.0
Matera_MLRO	7941	1447	542	200	2189	22287	5414	1330	29031	24755	2.3	6.2	6.6
Haleakala	7210	1588	348	214	2150	25335	3762	1666	30763	23555
McDonald	7080	1432	461	220	2113	18024	4214	1020	23258	18834	11.2	11.4	11.3
Beijing	7249	1261	361	111	1733	19526	3687	701	23914	16899	14.0	52.0	22.8
Shanghai	7837	1372	220	17	1609	20930	2181	119	23230	11540	9.9	16.9	20.6
Potsdam_3	7841	966	249	19	1234	19242	3380	148	22770	12779	10.6	12.8	17.6
Riga	1884	1035	93		1128	19657	1015		20672	6936	7.3	13.8	11.4
Borowiec	7811	804	211		1015	14247	2251		16498	8576	17.1	18.9	23.0
Maidanak_1	1864	539	250	159	948	6671	1745	683	9099	9069		88.2	53.5
Simeiz	1873	569	169	62	800	5274	949	305	6528	5102		60.1	62.3
Papeete	7124	712	76		788	8881	491		9372	3803	5.7	9.0	7.2
Urumqi	7355	509	149	21	679	7378	1686	125	9189	6142	14.6	24.2	29.2
Kiev	1824	617	33		650	6314	175		6489	2095	43.6	51.8	64.7
Potsdam_1	7836	512	92	13	617	8066	822	52	8940	3999	10.4		13.0
Grasse	7835	449	105		554	9890	1250		11140	5040	7.1	12.0	16.8
Katzively	1893	387	90	5	482	6630	634	21	7285	3385	48.5	53.8	55.8
Arequipa	7403	337	48		385	4367	416		4783	2213
Mount_Stromlo_2	7825	225	65	17	307	2104	522	89	2715	2282	4.1	8.2	9.4
Koganei	7308	107	134	58	299	1763	1654	364	3781	5835
Chania	7830	281	10		291	5205	79		5284	1749
Metsahovi	7806	255	8		263	4235	53		4288	1208	10.1	11.2	15.7
Lviv	1831	185	36		221	3063	351		3414	1717	19.1	55.3	50.5
FTLRS_San_Fernando	7823	192	12		204	3994	83		4077	1394
Concepcion_847 Concepcion_423	7405	141 333	38 65	7 2	186 400	1850 3119	288 355	22 2	2160 3476	1362 1904	18.6 7.7	3.4 13.2	23.6 16.5
Wuhan_2	7231	150	27		177	1926	204		2130	1071	27.5	23.6	25.6
Helwan	7831	104			104	1077			1077	353	6.0	14.9
FTLRS_Brest_France	7604	69			69	1072			1072	334	6.0	10.4
Maidanak_2	1863	28	20	4	52	344	135	28	507	517
Komsomolsk	1868	9	20	3	32	87	140	18	245	397
Mendeleevo	1870	4			4	21			21	6
Tanegashim	7358	1	2		3	17	16		33	40	1.6		5.8

 

 

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_LLR	7845	77	297	67	29.6
McDonald	7080	44	83	10	76.3
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		CSR Orbital Analysis				Delft Orbital Analysis				NICT Orbital Analysis				MCC Orbital Analysis				SHAO Orbital Analysis
Station Location	Station Number	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	short term (mm)	long term (mm)	% good LAG. NP	NP RMS	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	2.3	10.6	1.0	99.0	2.2	14.1	1.6	100.0	2.0	21.2	3.1	100.0	1.8	14.1	2.9	95.1	2.0	16.0	1.9	94.6
Riyadh	7832	2.4	17.0	3.9	99.7	2.6	19.4	1.3	100.0	2.2	24.9	5.2	99.9	2.6	19.5	5.4	96.6	2.3	21.6	3.8	96.5
Monument_Peak	7110	3.0	11.9	3.7	99.2	2.3	20.0	2.5	99.1	2.8	22.0	4.0	99.8	2.6	11.3	2.3	94.4	2.5	14.0	2.4	95.3
Wettzell	8834	3.2	26.2	4.6	99.3	2.5	17.0	3.1	99.8	2.6	16.3	3.0	100.0	2.7	12.9	3.2	95.4	2.5	15.4	3.8	96.1
Graz	7839	1.4	9.0	3.0	99.4	1.3	9.3	2.7	100.0	0.8	13.6	2.6	100.0	1.9	7.9	2.1	100.0	1.4	12.4	2.2	96.3
Herstmonceux	7840	2.1	9.3	2.4	99.6	2.7	12.4	2.4	100.0	1.8	11.6	2.6	100.0	2.7	7.8	1.0	96.1	1.9	11.3	1.5	95.3
Changchun	7237	6.7	13.3	4.0	99.3	6.6	21.0	4.8	100.0	6.5	20.1	6.3	100.0	4.5	14.2	4.1	83.7	5.6	17.1	3.2	93.4
Greenbelt	7105	3.2	10.7	6.2	98.9	2.9	16.5	4.2	99.9	3.0	24.0	7.4	100.0	2.1	15.0	3.0	93.5	2.0	14.4	5.8	93.7
Zimmerwald_423 Zimmerwald_846	7810	2.7	9.1		99.3	2.9 3.8	12.5 10.5	6.7	100.0 100.0	2.4 3.1	13.1 9.1	5.2	100.0 100.0	3.0	9.9	5.1	92.5	3.5	12.7	5.5	96.1
Simosato	7838	6.1	13.5	8.1	98.5	7.2	11.2	3.7	99.7	5.7	19.1	5.2	99.6	5.3	16.1	6.5	78.9	5.0	15.7	3.9	94.0
Hartebeesthoek	7501	2.5	15.9	5.3	99.1	2.0	17.4	4.1	99.7	1.8	28.0	8.9	100.0	2.1	19.0	5.5	96.9	2.1	20.1	6.1	95.1
San_Fernando	7824	3.7	18.3	8.8	99.6	2.8	26.5	10.3	100.0	3.4	21.9	11.7	100.0	3.1	19.8	7.0	93.9	3.2	23.1	13.9	96.9
Matera_MLRO	7941	2.1	10.1	3.0	98.0	1.8	13.9	1.9	97.9	1.8	22.7	5.6	98.5	2.0	13.2	2.7	97.0
McDonald	7080	2.0	12.0	2.2	99.3	2.1	14.1	3.4	100.0	1.8	17.9	4.4	100.0	2.0	10.5	2.7	96.6	1.6	13.2	2.6	95.2
Beijing	7249	8.0	15.9	6.6	99.2	9.2	25.6	8.8	99.2	7.7	24.0	30.9	99.7	9.0	39.5	9.6	75.8	6.9	23.1	6.3	94.4
Shanghai	7837	6.7	23.5	11.6	99.1	6.9	22.1	11.6	100.0	6.0	21.4	12.6	100.0	4.9	19.3	9.9	85.6	5.1	24.5	16.4	92.6
Potsdam_3	7841	4.0	16.9	10.2	99.3	4.0	10.4	3.4	99.1	4.1	10.8	13.9	100.0	2.8	9.0	7.2	91.0
Riga	1884	5.0	21.6	15.2	98.6	6.2	14.9	8.7	100.0	5.2	16.3	10.0	100.0	4.1	13.4	12.1	85.6	5.2	19.3	9.9	92.3
Borowiec	7811	4.9	19.8	11.6	99.7	5.6	13.2	6.4	98.1	4.4	14.5	6.6	100.0	4.1	10.5	4.0	87.6	4.7	13.5	4.3	95.3
Maidanak_1	1864	11.0	29.6	17.2	98.2	12.3	33.4	13.6	100.0	11.1	31.1	11.3	100.0	6.9	24.3	23.1	79.2	10.8	32.2	14.1	86.1
Simeiz	1873	10.5	19.5	10.9	46.4					45.4	47.8	37.9	100.0	28.2	27.5	15.8	79.5	19.5	37.4		72.2
Papeete	7124	2.0	10.8		100.0	1.6	21.5		100.0	1.8	25.9		100.0	1.9	16.6	19.9	95.4	1.8	29.5		97.9
Urumqi	7355	10.2	26.1		88.0	14.2	32.3		85.7	30.9	38.0		99.2					15.5	28.9		86.1
Grasse	7835	1.7	6.2		99.2	2.0	8.4		100.0	1.6	10.9		100.0	2.9	16.1		92.5	1.7	11.5		95.1
Katzively	1893	7.9	27.0		98.7	10.4	37.4		100.0	9.7	29.9		100.0	5.6	22.8		76.2	8.2	22.8		94.8
Mount_Stromlo_2	7825					3.8	10.2		94.3	4.7	21.1		100.0
Lviv	1831					17.4	35.0		100.0	15.2	48.3		100.0
Wuhan_2	7231	6.6	20.3		95.5	6.6	30.4		94.1	6.8	37.0		95.3	6.1	37.0		82.9