Infrared and Laser Engineering, Volume. 54, Issue 7, 20250088(2025)
Application of satellite target in system delay calibration for satellite laser ranging
Figures & Tables(11)
Fig. 1. The composition of SLR system and system delay distribution
Fig. 3. (a) Mean ranging residuals for LAGEOS-1; (b) RMS ofranging residuals for LAGEOS-1
Fig. 4. Ranging residuals and sky maps of LAGEOS-2 after delay value corrections using different methods for the SLR System
Fig. 5. Ranging residuals and sky maps of AJISAI after delay value corrections using different methods for the SLR system
Fig. 6. Ranging residuals and sky maps of ETALON-1 after delay value corrections using different methods for the slr system
Table 1. SLR Range model and reference
` View tableView in ArticleTable 1. SLR Range model and reference
` Model Reference Atmospherical propagation delay Mendes & Pavlis[ 11 ]Solid Earth tides and pole tides IERS conventions 2010[ 12 ]Ocean tides FES2004[ 13 ]Planetary ephemerides JPL DE421 Center-of-mass corrections(COM) ILRS Reference frame GCRF
Table 2. Parameters of SLR at changchun observatory
View tableView in ArticleTable 2. Parameters of SLR at changchun observatory
Parameters Values Laser energy 1 mJ Quantum efficiency 20% Main mirror aperture 60 cm Divergence angle 10″
Table 3. Ground target and satellite target system delaycalculation results
View tableView in ArticleTable 3. Ground target and satellite target system delaycalculation results
Number GT delay/ ps Sat delay/ ps System delay(GT) RMS/ps System delay(Sat) RMS/ps 1 184098 183691 45.2 4.0 2 184110 184232 45.3 3.9 3 184205 184771 34.7 23.1 4 184098 183690 45.2 4.0 5 183974 184062 46.8 54.9 6 184159 183942 51.8 144.4 7 184063 184582 45.3 28.3 8 184013 183360 37.3 49.7 9 184048 184372 44.1 34.3 10 184070 183028 50.2 50.1 11 184165 183719 31.4 10.2
Table 4. Parameters of satellites
View tableView in ArticleTable 4. Parameters of satellites
Satellites Altitude/km Inclination/(°) Orbital period/min LAGEOS-1 5850 110 225 LAGEOS-2 5625 53 223 AJISAI 1485 50 116 ETALON-1 19105 65 676
Table 5. Comparison of ranging residuals RMS and range bias
View tableView in ArticleTable 5. Comparison of ranging residuals RMS and range bias
Obs. target/ps GT correctedrange residual RMS/mm Sat corrected range residual RMS/mm GT corrected RB/mm Sat corrected RB/mm RMS, RB relative change LAGEOS-2(1) 78.9 21.7 −88.8 −28.5 −72.4% −67.9% LAGEOS-2(2) 21.0 6.1 7.1 −11.2 −70.7% 57.2% AJISAI(1) 219.8 149.6 62.2 −22.7 −31.9% −63.5% AJISAI(2) 59.2 15.2 −73.1 12.0 −74.2% −83.6% AJISAI(3) 105.7 92.2 90.9 77.2 −12.8% −15.1% AJISAI(4) 164.8 132.4 −155.9 −123.3 −19.7% −20.9% ETALON-1(1) 116.4 49.1 113.4 35.6 −57.8% −68.6% ETALON-1(2) 160.4 59.7 −155.9 −52.3 −62.8% −66.4% ETALON-1(3) 55.4 23.1 35.5 −13.2 −58.4% −62.9% ETALON-1(4) 118.8 64.0 −149.1 7.0 −46.1% −95.3% ETALON-1(5) 142.6 77.3 −139.2 −72.4 −45.8% −48.0%
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Yan LIANG, Ning AN, Xingwei HAN, Zhipeng LIANG, Bin GUAN, Haitao ZHANG, Chengzhi LIU. Application of satellite target in system delay calibration for satellite laser ranging[J]. Infrared and Laser Engineering, 2025, 54(7): 20250088
Paper Information
Category: Laser
Received: Feb. 10, 2025
Accepted: --
Published Online: Aug. 29, 2025
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