Preliminary products of precise orbit determination using satellite laser ranging observations for ILRS AAC

Young Rok Kim, Sang Young Park, Eun Seo Park, Hyung Chul Lim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, we present preliminary results of precise orbit determination (POD) using satellite laser ranging (SLR) observations for International Laser Ranging Service (ILRS) Associate Analysis Center (AAC). Using SLR normal point observations of LAGEOS-1, LAGEOS-2, ETALON-1, and ETALON-2, the NASA/GSFC GEODYN II software are utilized for POD. Weekly-based orbit determination strategy is applied to process SLR observations and the post-fit residuals check, and external orbit comparison are performed for orbit accuracy assessment. The root mean square (RMS) value of differences between observations and computations after final iteration of estimation process is used for post-fit residuals check. The result of ILRS consolidated prediction format (CPF) is used for external orbit comparison. Additionally, we performed the precision analysis of each ILRS station by post-fit residuals. The post-fit residuals results show that the precisions of the orbits of LAGEOS-1 and LAGEOS-2 are 0.9 and 1.3 cm, and those of ETALON-1 and ETALON-2 are 2.5 and 1.9 cm, respectively. The orbit assessment results by ILRS CPF show that the radial accuracies of LAGEOS-1 and LAGEOS-2 are 4.0 cm and 5.3 cm, and the radial accuracies of ETALON-1 and ETALON-2 are 30.7 cm and 7.2 cm. These results of station precision analysis confirm that the result of this study is reasonable to have implications as preliminary results for administrating ILRS AAC.

Original languageEnglish
Pages (from-to)275-285
Number of pages11
JournalJournal of Astronomy and Space Sciences
Volume29
Issue number3
DOIs
Publication statusPublished - 2012 Sep

Fingerprint

LAGEOS (satellite)
LAGEOS
laser ranging
satellite laser ranging
orbit determination
laser
orbits
products
format
stations
mean square values
accuracy assessment
prediction
predictions
iteration
analysis
product
services
computer programs
software

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Earth and Planetary Sciences(all)

Cite this

@article{357bcb2eba4747b7b4d3fbd1af28d9c3,
title = "Preliminary products of precise orbit determination using satellite laser ranging observations for ILRS AAC",
abstract = "In this study, we present preliminary results of precise orbit determination (POD) using satellite laser ranging (SLR) observations for International Laser Ranging Service (ILRS) Associate Analysis Center (AAC). Using SLR normal point observations of LAGEOS-1, LAGEOS-2, ETALON-1, and ETALON-2, the NASA/GSFC GEODYN II software are utilized for POD. Weekly-based orbit determination strategy is applied to process SLR observations and the post-fit residuals check, and external orbit comparison are performed for orbit accuracy assessment. The root mean square (RMS) value of differences between observations and computations after final iteration of estimation process is used for post-fit residuals check. The result of ILRS consolidated prediction format (CPF) is used for external orbit comparison. Additionally, we performed the precision analysis of each ILRS station by post-fit residuals. The post-fit residuals results show that the precisions of the orbits of LAGEOS-1 and LAGEOS-2 are 0.9 and 1.3 cm, and those of ETALON-1 and ETALON-2 are 2.5 and 1.9 cm, respectively. The orbit assessment results by ILRS CPF show that the radial accuracies of LAGEOS-1 and LAGEOS-2 are 4.0 cm and 5.3 cm, and the radial accuracies of ETALON-1 and ETALON-2 are 30.7 cm and 7.2 cm. These results of station precision analysis confirm that the result of this study is reasonable to have implications as preliminary results for administrating ILRS AAC.",
author = "Kim, {Young Rok} and Park, {Sang Young} and Park, {Eun Seo} and Lim, {Hyung Chul}",
year = "2012",
month = "9",
doi = "10.5140/JASS.2012.29.3.275",
language = "English",
volume = "29",
pages = "275--285",
journal = "Journal of Astronomy and Space Science",
issn = "2093-5587",
publisher = "The Korean Space Science Society",
number = "3",

}

Preliminary products of precise orbit determination using satellite laser ranging observations for ILRS AAC. / Kim, Young Rok; Park, Sang Young; Park, Eun Seo; Lim, Hyung Chul.

In: Journal of Astronomy and Space Sciences, Vol. 29, No. 3, 09.2012, p. 275-285.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preliminary products of precise orbit determination using satellite laser ranging observations for ILRS AAC

AU - Kim, Young Rok

AU - Park, Sang Young

AU - Park, Eun Seo

AU - Lim, Hyung Chul

PY - 2012/9

Y1 - 2012/9

N2 - In this study, we present preliminary results of precise orbit determination (POD) using satellite laser ranging (SLR) observations for International Laser Ranging Service (ILRS) Associate Analysis Center (AAC). Using SLR normal point observations of LAGEOS-1, LAGEOS-2, ETALON-1, and ETALON-2, the NASA/GSFC GEODYN II software are utilized for POD. Weekly-based orbit determination strategy is applied to process SLR observations and the post-fit residuals check, and external orbit comparison are performed for orbit accuracy assessment. The root mean square (RMS) value of differences between observations and computations after final iteration of estimation process is used for post-fit residuals check. The result of ILRS consolidated prediction format (CPF) is used for external orbit comparison. Additionally, we performed the precision analysis of each ILRS station by post-fit residuals. The post-fit residuals results show that the precisions of the orbits of LAGEOS-1 and LAGEOS-2 are 0.9 and 1.3 cm, and those of ETALON-1 and ETALON-2 are 2.5 and 1.9 cm, respectively. The orbit assessment results by ILRS CPF show that the radial accuracies of LAGEOS-1 and LAGEOS-2 are 4.0 cm and 5.3 cm, and the radial accuracies of ETALON-1 and ETALON-2 are 30.7 cm and 7.2 cm. These results of station precision analysis confirm that the result of this study is reasonable to have implications as preliminary results for administrating ILRS AAC.

AB - In this study, we present preliminary results of precise orbit determination (POD) using satellite laser ranging (SLR) observations for International Laser Ranging Service (ILRS) Associate Analysis Center (AAC). Using SLR normal point observations of LAGEOS-1, LAGEOS-2, ETALON-1, and ETALON-2, the NASA/GSFC GEODYN II software are utilized for POD. Weekly-based orbit determination strategy is applied to process SLR observations and the post-fit residuals check, and external orbit comparison are performed for orbit accuracy assessment. The root mean square (RMS) value of differences between observations and computations after final iteration of estimation process is used for post-fit residuals check. The result of ILRS consolidated prediction format (CPF) is used for external orbit comparison. Additionally, we performed the precision analysis of each ILRS station by post-fit residuals. The post-fit residuals results show that the precisions of the orbits of LAGEOS-1 and LAGEOS-2 are 0.9 and 1.3 cm, and those of ETALON-1 and ETALON-2 are 2.5 and 1.9 cm, respectively. The orbit assessment results by ILRS CPF show that the radial accuracies of LAGEOS-1 and LAGEOS-2 are 4.0 cm and 5.3 cm, and the radial accuracies of ETALON-1 and ETALON-2 are 30.7 cm and 7.2 cm. These results of station precision analysis confirm that the result of this study is reasonable to have implications as preliminary results for administrating ILRS AAC.

UR - http://www.scopus.com/inward/record.url?scp=84870281060&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870281060&partnerID=8YFLogxK

U2 - 10.5140/JASS.2012.29.3.275

DO - 10.5140/JASS.2012.29.3.275

M3 - Article

AN - SCOPUS:84870281060

VL - 29

SP - 275

EP - 285

JO - Journal of Astronomy and Space Science

JF - Journal of Astronomy and Space Science

SN - 2093-5587

IS - 3

ER -