Identification of space debris:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Aachen
Shaker
2011
|
| Schriftenreihe: | Berichte aus der Astronomie
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 203 S. Ill., graph. Darst. 21 cm, 335 g |
| ISBN: | 9783844005165 |
Internformat
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Datensatz im Suchindex
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|---|---|
| adam_text | IMAGE 1
CONTENTS
LIST OF FIGURES LIST OF TABLES
FREQUENTLY USED ACRONYMS
1. PROLOGUE
2. INTRODUCTION 3
2.1 SPACE DEBRIS 3
2.2 OPTICAL OBSERVATIONS OF SPACE DEBRIS 9
2.3 OUTLINE 12
3. LIST OF PUBLICATIONS 13
4. PROCESSING PIPELINE 15
4.1 OVERVIEW: THE PIPELINE 15
4.2 AVERAGED FRAME: IPMEDI 15
4.3 MASKING: SSMASK 18
4.3.1 MASK GENERATION 18
4.3.2 BACKGROUND DETERMINATION 19
4.3.2.1 FIRST BACKGROUND DETERMINATION 19
4.3.2.2 IMPROVED BACKGROUND DETERMINATION 19
4.3.3 STAR/OBJECT IMAGE SEARCH: SCANNING AND RECOGNITION 20
4.3.3.1 OBJECT/STAR IMAGE RECOGNITION ALGORITHMS 20
4.4 OBJECT IMAGE SEARCH: SSSEAR 22
4.5 OBJECT IMAGE LINKING: SSESEL 24
4.6 MATCHING STAR TRACES WITH REFERENCE STARS FROM A CATALOGUE: CCDSTK
24 4.7 PRECISE CCD COORDINATES OF STARS: CCDCEN 25
4.8 HIGH PRECISION ASTROMETRY: AMETRY 25
4.9 DETERMINING APPARENT OBJECT MAGNITUDES: CCDMAG 27
4.10 DETERMINATION OF A CIRCULAR ORBIT: ODCORD 27
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/101786246X
DIGITALISIERT DURCH
IMAGE 2
CONTENTS
4.11 IMPROVED ORBIT DETERMINATION WITHOUT PERTURBATION: ODIORD 27
4.12 CATALOG CORRELATION: ODIDNT 28
4.13 SELECTION OF CORRELATED OBJECTS: ODISEL 28
4.14 DISTANCE AND PHASE ANGLE CORRECTIONS OF OBJECT MAGNITUDES: ODMAGN
28 4.15 GENERATE PROCESSING OUTPUT: CCOGET 28
5. COSMIC FILTER 31
5.1 THE PROBLEM OF COSMIC RAYS 31
5.2 COSMIC FILTERS 33
5.2.1 COSMICSATTHEESASDT 33
5.2.2 OLD COSMIC FILTER: CONTRAST FILTER 35
5.2.3 EMPIRICAL METHOD FOR A NEW COSMICS FILTER: OBJECT CLASS FILTER 36
5.2.4 METHOD OF THE EDGE DETECTION COSMIC FILTERS 36
5.2.4.1 CLASSICAL EDGE DETECTION: SOBEL FILTER 37
5.2.4.2 CLASSICAL EDGE DETECTION: PREWITT FILTER 37
5.2.5 PERFORMANCE COMPARISON 38
5.2.6 CONCLUSIONS 53
6. TRACKLET LINKING OF OBJECT IMAGES ON OBSERVATION SERIES 55
6.1 THE PROBLEM OF TRACKLET LINKING 55
6.1.1 BOUNDARY CONDITIONS FOR TRACKLET LINKING AT THE ESASDT: SURVEY
SCENARIOS AND COVERAGE 56
6.1.2 TRACKLET LINKING IN DIFFERENT PROCESSING SCHEMES 58
6.2 OLD ALGORITHM: TRACKLET LINKING WITH PSEUDO-INCLINATION AND APPARENT
VELOCITY LIMIT . 59 6.2.1 LIMITATIONS OF THE OLD ALGORITHM 59
6.3 NEW ALGORITHM: TRACKLET LINKING 60
6.3.1 LIMITATIONS OF THE NEW METHOD 62
6.3.1.1 PROBABILITY FOR RANDOM LINKS 62
6.3.1.2 LIMITS IMPOSED BY ASSUMPTION OF STEADY LINEAR APPARENT MOTION .
. 65 6.4 PERFORMANCE COMPARISON WITH THE ESASDT 73
6.5 CONCLUSIONS 76
7. CATALOGUE CORRELATION OF OPTICAL OBSERVATIONS 79
7.1 INTRODUCTION 79
7.2 CATALOGUE CORRELATION IN THE ESASDT PROCESSING PIPELINE 82
7.2.1 OLD ALGORITHM: CORRELATION USING ORBITAL ELEMENTS 83
7.2.2 NEW ALGORITHM: CORRELATION USING ASTROMETRIC POSITIONS AND
VELOCITY 83 7.2.3 IMPLEMENTATION AND PERFORMANCE COMPARISON 85
7.2.3.1 IMPLEMENTATION OF THE NEW ALGORITHM 85
7.2.3.2 PERFORMANCE TEST OF THE NEW ALGORITHM 85
7.3 CORRELATION WITH TWO LINE ELEMENT (TLE) CATALOGUE DATA 89
IMAGE 3
CONTENTS
7.3.1 THE FORMAT 89
7.3.2 THE PROPAGATORS: SGP4/SDP4 AND SGP8/SDP8 92
7.3.3 CORRELATING PREDICTED USSTRATCOM/DISCOS EPHEMERIDES WITH AIUB OB-
SERVATIONS 93
7.3.3.1 SDP8 AND SDP4 PROPAGATION 94
7.3.3.2 EPOCH DEPENDENCY 101
7.4 ORBIT DETERMINATION AND CORRELATION WITH EPHEMERIDES DATA 107
7.4.1 ORBIT DETERMINATION WITH THE CELMECH PROGRAM SYSTEM 107
7.4.2 FIRST ORBIT DETERMINATION AND IMPROVEMENT: ORBDET 107
7.4.3 ORBIT DETERMINATION AND EPHEMERIDES CALCULATION WITH IMPROVED
FORCE MODEL: SATORB 110
7.4.3.1 ORBIT DETERMINATION 110
7.4.3.2 EPHEMERIDES CALCULATION 112
7.4.4 COMPARISON OF AIUB AND USSTRATCOM/DISCOS TLE EPHEMERIDES 112
7.4.4.1 GEO OBJECTS 113
7.4.4.2 HEO OBJECTS 122
7.4.4.3 HIGH AREA-TO-MASS RATIO (HAMR) OBJECTS 130
7.4.5 ORBIT DETERMINATION AND PREDICTION BASED ON SPARSE DATA 137
7.4.5.1 SELECTED OBJECTS, DATA DENSITY AND SPACING 138
7.4.5.2 DISTANCES BETWEEN EPHEMERIDES AND OBSERVATIONS FROM SINGLE AND
COMBINED SITES 140
7.4.6 PROPERTIES OF HAMR OBJECTS INVESTIGATED IN SPARSE DATA SETUP 148
7.4.6.1 EVOLUTION OF ORBITAL ELEMENTS 148
7.4.6.2 EVOLUTION OF AREA-TO-MASS RATIO VALUE 151
7.5 SUMMARY AND CONCLUSIONS 156
8. OBJECT CHARACTERIZATION VIA LIGHT CURVES 159
8.1 NON-RESOLVED IMAGING 159
8.1.1 INTRODUCTION 159
8.1.2 CONVEX OBJECTS 160
8.1.2.1 SHAPE ANALYSIS WITH KNOWN ATTITUDE 161
8.1.2.2 ATTITUDE-INDEPENDENT SHAPE ANALYSIS 161
8.1.3 ARBITRARILY SHAPED OBJECTS 162
8.1.3.1 SHAPE-INDEPENDENT ATTITUDE ANALYSIS 162
8.1.3.2 ATTITUDE-INDEPENDENT SHAPE ANALYSIS 164
8.2 VIEWING AND LIGHTING GEOMETRY: PHASE ANGLE 164
8.3 SIMULATED LIGHT CURVES 165
8.3.1 SIMULATION SETUP 165
8.3.2 SIMULATED LIGHT CURVES OF SIMPLE SHAPES 168
8.3.3 FOURIER ANALYSIS OF SIMULATED LIGHT CURVES 170
8.3.4 PATTERN RECOGNITION OF SIMULATED CURVES 172
8.4 INTERPRETATION OF LIGHT CURVES OF SATELLITES AND SPACE DEBRIS 172
IMAGE 4
CONTENTS
8.4.1 FOURIER ANALYSIS OF OBSERVED LIGHT CURVES 175
8.4.2 PATTERN RECOGNITION OF OBSERVED LIGHT CURVES 177
8.5 LIGHT CURVE MEASUREMENTS IN COMPARISON WITH ORBIT DETERMINATION
RESULTS 179 8.5.1 TWO EXAMPLES OF LOW AREA TO MASS RATIO DEBRIS 179
8.5.2 TWO EXAMPLES OF HIGH AREA TO MASS RATIO DEBRIS 182
8.6 CONCLUSIONS 187
9. SUMMARY 189
10. ACKNOWLEDGMENTS 193
|
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| indexdate | 2024-07-10T00:19:42Z |
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| isbn | 9783844005165 |
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| physical | XVI, 203 S. Ill., graph. Darst. 21 cm, 335 g |
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| spelling | Früh, Carolin Verfasser aut Identification of space debris Carolin Früh Aachen Shaker 2011 XVI, 203 S. Ill., graph. Darst. 21 cm, 335 g txt rdacontent n rdamedia nc rdacarrier Berichte aus der Astronomie Zugl.: Bern, Univ., Diss., 2011 Nachweis (DE-588)4115334-0 gnd rswk-swf Optische Messtechnik (DE-588)4172667-4 gnd rswk-swf Weltraummüll (DE-588)4322449-0 gnd rswk-swf Weltraumbeobachtung (DE-588)4754601-3 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Weltraummüll (DE-588)4322449-0 s Nachweis (DE-588)4115334-0 s Weltraumbeobachtung (DE-588)4754601-3 s Optische Messtechnik (DE-588)4172667-4 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025094782&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Früh, Carolin Identification of space debris Nachweis (DE-588)4115334-0 gnd Optische Messtechnik (DE-588)4172667-4 gnd Weltraummüll (DE-588)4322449-0 gnd Weltraumbeobachtung (DE-588)4754601-3 gnd |
| subject_GND | (DE-588)4115334-0 (DE-588)4172667-4 (DE-588)4322449-0 (DE-588)4754601-3 (DE-588)4113937-9 |
| title | Identification of space debris |
| title_auth | Identification of space debris |
| title_exact_search | Identification of space debris |
| title_full | Identification of space debris Carolin Früh |
| title_fullStr | Identification of space debris Carolin Früh |
| title_full_unstemmed | Identification of space debris Carolin Früh |
| title_short | Identification of space debris |
| title_sort | identification of space debris |
| topic | Nachweis (DE-588)4115334-0 gnd Optische Messtechnik (DE-588)4172667-4 gnd Weltraummüll (DE-588)4322449-0 gnd Weltraumbeobachtung (DE-588)4754601-3 gnd |
| topic_facet | Nachweis Optische Messtechnik Weltraummüll Weltraumbeobachtung Hochschulschrift |
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