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Table 3 Observation conditions in the selected 15 days

From: Derivation of 1.064 μm normal albedos on the C-type asteroid Ryugu from laser pulse intensity measurement of the Hayabusa2 LIDAR

Date

Event

Altitude range (m)

Total of data

2018/7/20

Science observation at low altitude

6212–7832

36,827

2018/8/1

Science observation at middle altitude

5070–19,946

84,076

2018/8/6

Gravity measurement

828–20,641

85,625

2018/8/7

Gravity measurement

1416–10,296

41,291

2018/9/11

Touchdown rehearsal

1972–19,943

72,092

2018/9/20

MINERVA release

1531–19,788

76,794

2018/9/21

MINERVA release

54–15,235

32,620

2018/10/2

MASCOT release

647–19,624

84,798

2018/10/3

MASCOT release

46–2752

86,380

2018/10/4

MASCOT release

2670–14,406

47,039

2018/10/14

Touchdown rehearsal

6206–19,626

41,971

2018/10/15

Touchdown rehearsal

21–12,944

65,334

2018/10/24

Touchdown rehearsal

952–19,860

82,719

2018/10/30

Science observation at low altitude

5182–6735

33,787

2018/10/31

Science observation at low altitude

3134–5560

24,726