NICT䛻䛚䛡䜛Ἴ㛗1um䝺䞁䝆䞁䜾䝅䝇䝔䝮䛾ᵓ⠏ᅧ᳃⿱⏕
᝟ሗ㏻ಙ◊✲ᶵᵓ(NICT)ㅰ㎡䠖ᰴᘧ఍♫PDC䠈䜸䞊䝔䝑䜽䝇ᰴᘧ఍♫䠈ᰴᘧ఍♫䝴䝙䝞䞊䝇䠈ᰴᘧ఍♫䜶䝇䜰䞁䝗䜶䞊䠈᭷㝈఍♫TTCྛ♫HAYABUSA2䠉LIDAR㻌 PI䝏䞊䝮䠄௦⾲䠖JAXAỈ㔝㈗⚽Ặ䠅䛾㛵ಀྛ఩䚸ᅜ❧ኳᩥྎྛ఩䠈༓ⴥᕤᴗ኱Ꮫ,Mt.Stromloほ ᒁ䝇䝍䝑䝣ྛ఩䠈᪩✄⏣኱Ꮫ㻌 㐲⸨ᐶஅẶ
䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼1┠ḟp⫼ᬒ㻌 ┠ⓗpSpaceDebrisほ 䝅䝇䝔䝮㻌pᮃ㐲㙾䛸ほ 䝁䞁䝣䜱䜾䝺䞊䝅䝵䞁p䝺䞊䝄
p ㊥⣔
pཷಙჾ

pヨ㦂ほ Hauabusa2p⤊䜟䜚䛻
䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼2⫼ᬒ┠ⓗ• ᪥ᮏ䛾SSA䛻ᑐᛂ䚸㇦ᕞ䝥䝻䜾䝷䝮SERC䛸䛾䝇䝨䞊䝇䝕䝤䝸䝥䝻䜾䝷䝮䛷ᆅୖᒁ䛻䜘䜚⌧ᅾ䜘䜚㧗ฟຊ䛷Ἴ㛗1um
䛾SLRᶵ⬟䛾㏣ຍ䚸ኚ᭦ᐇ᪋䚹• HAYABUSA-䠎䛾LIDARග䝸䞁䜽ᐇ㦂䛻㛵䛩䜛ඹྠ◊✲
䠄NICT-JAXA 2015ᖺ3᭶䡚䠅䛻ᇶ䛵䛟䚹㻌 JAXA-LIDAR-PI䝏䞊䝮䠄Ỉ㔝㈗⚽䝸䞊䝎䠅䛸䛧䛶䛾άື䠊⾨ᫍ䞊ᆅ⌫㛫(2000୓km䡚500୓km䠅䛾ග䝟䝹䝇䛾㏦ཷಙ䜢ヨ䜏䜛䛣䛸䛷䚸
LIDARഃ䛾ᡴ䛱ୖ䛢ᚋ䛾䜰䝷䜲䝯䞁䝖䚸೺඲ᛶ䜢☜ㄆ䛩䜛䛸
䛸䜒䛻LIDAR䛾᫬⣔䛾ᰯṇ䚹• ᆅ⌫䝇䜲䞁䜾䝞䜲᪥䛿12᭶3᪥䚹䛭䛾๓ᚋ໭༙⌫䠄ᑠ㔠஭ᒁ䠅䛷䛿10᭶䚸11᭶䛻༡༙⌫䛷䛿12᭶䛭䜜䛮䜜ᩘ᪥㛫䛾ᐇ㦂䜴䜲䞁䝗䜴䠊
SSA:㻌 Space Situation Awareness
SERC: Space Environment Research Center (Australia)
LIDAR: 㻌 the light detection and ranging laser altimeter on Hayabusa 2
SLR: Satellite Laser Ranging
䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

3㻌 㻌 ᮃ㐲㙾䛸ほ 䝁䞁䝣䜱䜾䝺䞊䝅䝵䞁NICTᑠ㔠஭
1m⣭ᮃ㐲㙾
1mᮃ㐲㙾

ཱྀᚄ

1.5m

75cm

1m

ᙧᘧ

ALT-AZ

ALT-AZ

ALT-AZ

Coude,,StationaryN
ASMYTHDerotatedN
ASMYTH
BentCassegrain

Coude

NASMY
TH,
ClassicCassagra
in,
Coude

7308

7328

-↔Ⅼ

75੉ᮃ㐲㙾

1.5mᮃ㐲㙾ILRS
UTC-NICT୺ ┠ ග㏻ಙ㻌䝇 䝨 䞊 ග㏻ಙ
ⓗ㊥䞉䝇䝨䞊䝇 䝇 䝕 䝤䝕䝤䝸㻌䝸
䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼ගࣇ࢓࢖ࣂ࣮4

Transmission
OnlyConfiguration Diagram
sa2for Tracking Debris /Hayabusa2
KSP
BUIDINGHIKARICENTER

Ranging ENGINE
RGG: Range Gate Generator
ET:Event Timer

Prediction
Debris DB

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

Transmission
and Receive5ᑠ㔠஭ᮃ㐲㙾㻌 ග䝸䞁䜽/䝇䝨䞊䝇䝕䝤䝸㛤Ⓨ䛾グ㘓
0904/05/06/07/08

㻝㻜㻝㻡ᖺᗘ㻌ග ᆅୖᒁ㻌 Hayabusa2ᐇ㦂8᭶27᪥DryRun

10᭶13-16᪥ග䝸䞁䜽ᐇ㦂䠍䜲䞁䝍䝣䜵䞊䝇☜ㄆ
㏦ಙヨ㦂䝗䝷䜲䝷䞁㻌 1.5m㻌 ᮃ㐲㙾ಟ⌮ㄪᩚ101112

11᭶10-1䠐᪥ග䝸䞁䜽ᐇ䠎

1᭶~3᭶㇦ᕞᒁᐇ㦂㇦ᕞᒁᐇ㦂
12/11-15
12/18-21㻌㻌᏶ㄪᩚVxWorks஢䝪䞊䝗ㄪ㐩䚸䝣䜯䞊䝮

BEACON㻌 ㄪᩚSOTAᐇ㦂‽ഛཧຍヨ㦂㐠⏝㻌㐠⏝ ㄪᩚ㻌 㻌SOTA

㻌 SOTA」ᩘᆅୖᒁ
ᐇ㦂

KSP䝺䞊䝄᧔ཤ㻌䝄᧔ཤ Surelite⛣タ75䟛ᮃ㐲㙾㻌 䝗䞊䝮䝗䞊䝮䝗䝷䜲䝞䞊᭦᪂ᜏᫍ䚸 䝗䞊䝮䝬䝙䝳䜰䝹㐠⏝ㄪᩚᜏᫍ
Az,EL䛻䜘䜛⾨ᫍ㏣ᑿ

T/Rᅇ㌿䝅䝱䝑䝍䞊⊃ᖏᇦ䝣䜱䝹䝍䞊㛤ጞ䝋䝣䝝䞊䝗タ⨨᏶஢䝋䝣䝖⥲ྜㄪᩚ1um᳨▱ჾ༢యヨ㦂䞉⤌䜏㎸䜏ㄪᩚ
⤌䜏㎸䜏ㄪᩚ䞉ㄪᩚ䞉⫼ᬒග䞉ග䞉 ⥲ྜㄪᩚ䠎

HAYABUSA-2䝔䝺䝯䝖䝸䞊䜲䞁䝍䝣䜵䞊䝇

8᭶10᪥䝃䞊䝞タ⨨ヨ㦂

SLR䝕䝤䝸䝖䝷䝑䜻䞁䜾ᐇ㦂6㐠⏝㐠⏝

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

SpaceDebris Observation Laser
System Specification
Major Laser Specification
Pico sec SLRSystemNano sec Debris Nano sec Debris//Hayabusa2
for Hayabusa2
for
1.5 m telescope
75cm telescope

Wavelength

532nm

1064nm1064nmRPF

20~1kHz

10Hz

10Hz

Energy / pulse

0.5mJ

1.2J

800mJ

Pulse width

30ps

10ns

8ns

For ILRS,
POD/Geodesy

For Space Debris,Long Range Target

Nano sec Laser on
1.5m Telescope Coude Bench

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼7

㏦ಙ䝺䞊䝄䛾䝟䝽䞊グ㘓
Energy per pulse(J)75cm䝺䞊䝄㐠⏝㻌 㻌 䡚䠓䠕䠌䡉J/pulse
1.5m䝺䞊䝄㐠⏝㻌 㻌 䡚䠍䠊䠏J㻌 /pulse

00.8

1.5

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

8

㏦ཷಙගᏛ⣔NICT䜽䞊䝕ᐊす䝧䞁䝏䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

9㊥⿦⨨
5**㸦330ᶵ⬟㸧ࡢ௙ᵝRGG

㡯┠ReferenceFrequency

EventTimer௙ᵝእ㒊 10 MHz,1pps(UTC)

PRF(⧞䜚㏉䛧))
䠍Hz䠉䠍MHz
Target ModeUTC sync
Mode-Fixed㻌 or-Moving UP to 400,000km→2000୓
km௨ୖ䛻ᑐᛂ-Normal mode
-PPM mode (Selectable)
PPM M=2-256
ᇶᮏSLOTRATE㻌 311.04MHz
àᩥᏐ$6&&,,ᩥᏐ㏦ಙ䝁䝬䞁䝗
sync at station clock
sync at target modeCollision
Avoidance

㏦ಙ䛸ཷಙ䛾⾪✺䛾ᅇ㑊䠄䝺䞊䝄ᢚไ䜎䛯䛿䝀䞊䝖ᢚไ䠅

ModulationModeගࣇ࢓࢖ࣂ࣮10MHzఏ㏦⿦⨨䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

10

5HFHLYHUV*0᧩,Q*D$V$3'[$UUD\&DPHUD
:DYHOHQJWKaVHQVLWLYLW\5DQJH*DWHQVaXV 7LPLQJ,QWHUQDO([WHUQDOIURP5DQJH*DWH*HQHUDWRU
0HDQ'&53'(RYHUaSL[HOV᧼XP

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼11

*0᧩,Q*D$V$3'[$UUD\7UDFNLQJ኿ዙኦ
摜㉒ት岗並ሺᇬኲኀዙኦክአኌ榊⦶ት⒉┪ሼቮ䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼12

*0᧩,Q*D$V$3'[$UUD\䂻恬 72) ኿ዙኦ㣑栢ぽትⒸ䞷ሺቂ7LPH2I)OLJKW 72) ቎ቫቮ㶰⏒⍞ቑ⇫㒟⚓኏ዙእピት⒕━
7LPHELQピ 侓S䱡䈈㻌    ኏ዙእピ ˩䱡♾⮘ ኱ኌኘወ㹝቎䤉䋺ሺቂ኏ዙእ䟹⚆ት岧旁䟹䥽ቑኒኳ኏ዙእቊ䤉䋺ኒኳ኏ዙእ䟹⚆ት㣑栢ぽቋ崼ቢ⮘ራቮ

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼13

$3'[$UUD\&DPHUD#P7HOHVFRSH
'HURWDWHG1DVP\WK$UUD\&DPHUD᧧/HQVI PP᧧6SHFWUDO)LOWHUQP7 2'

/DWHUDO
7UDQVIHU+ROORZ
5HWUR5HIOHFWRU

&RQWUROOHU3&3XOVH
*HQHUDWRU&RXGH
7UDQVPLWEHDP
3LFNXS䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

14ᆅ⾨ᫍ㻌 䛒䛨䛥䛔㻌 䝖䝷䝑䜻䞁䜾2016ᖺ1᭶14᪥䠜1.5mᮃ㐲㙾*0᧩,Q*D$V$3'[$UUD\7UDFNLQJ0RGH

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

15

Back ground Noise Received in GMAPD 32x32 Arrayß 20 minutes eachIntegration time
2D Photon distribution

Time series of noise
count per1000 frames

Nov.11, 2015㻌 JST㻌 䠄Local Time䠅
16:36:53___䠻䠻䠻䠻䠻䠻䠻䠻16:54:34______䠻䠻䠻䠻17:15:03_

䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

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Results: Not received photonfrom the Earth/Hayabusa2
DateKoganei

Mt.StromloOct.13Clouds 90%-

Oct.14Clouds100%-

Oct.15Clouds brake
20 minutes throughOct.16

Rain-

Nov.10

Heavy clouds

Rain

Nov.11

Heavy clouds

30 seconds
In cloud brakeNov.12

Heavy Clouds

Heavy Clouds

Nov.13Clouds and rain

Heavy Clouds

Nov.14-Heavy Clouds

DEC.
䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼䝸䞁䜽☜❧䟿
17⤊䜟䜚䛻• ᪥ᮏ䛾SSA䛻ᑐᛂ䛧䛯䝺䞊䝄䜢⏝䛔䛯䝇䝨䞊䝇䝕䝤䝸ほ 䝅䝇䝔䝮䛻ᆅୖᒁ䜢᭦᪂䠊• HAYABUSA-2㻌 LIDAR䜈䛾ග䝸䞁䜽㇦ᕞ䛸䛾ඹྠ䛷䝺䞁䝆䞁䜾ᑠ㔠஭䛷䛿䝸䞁䜽䛿☜❧䛷䛝䛺䛛䛳䛯䠊䛜䠈• ᵓ⠏䛧䛯䝅䝇䝔䝮䛿௒ᚋ䝕䝤䝸ほ 䛻฼⏝䛧䛶䛔䛟䠊• ㅰ㎡䠖ᰴᘧ఍♫PDC䠈䜸䞊䝔䝑䜽䝇ᰴᘧ఍♫䠈ᰴᘧ఍♫䝴䝙䝞䞊䝇䠈ᰴᘧ఍♫䜶䝇䜰䞁䝗䜶䞊䠈᭷㝈఍♫TTCྛ♫HAYABUSA2䠉LIDAR㻌 PI䝏䞊䝮䠄௦⾲䠖JAXAỈ㔝㈗⚽Ặ䠅䛾㛵ಀྛ఩䚸ᅜ❧ኳᩥྎྛ఩䠈༓ⴥᕤᴗ኱Ꮫ,Mt.Stromloほ ᒁ䝇䝍䝑䝣䠈᪩✄⏣኱Ꮫ㻌 㐲⸨ᐶஅẶ䛻ឤㅰ䛧䜎䛩䠊䫔4⚆ILRS㈨埻忋䴉Ể2016⸜3㚰9㖍烏㤝⛘䞼

18