−12

−11

−10

−9

−8

−7

−6

Σ PS

D M

agni

tude

[lo

g 10(g

2 /Hz)

]

GMT 13−December−2008, 348/hh:mm

Freq

uenc

y (H

z)

Start GMT 13−December−2008, 348/16:00:00

mams, hirapSpan = 8.00 hoursHanning, k = 3441

sum

Temp. Res. = 8.192 sec, No = 0Δf = 0.122 Hz, Nfft = 81921000.00 sa/sec (100.00 Hz)mams, hirap at LAB1O2, ER1, Lockers 3,4:[138.7 −16.2 142.3]

16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:000

10

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60

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100

Description

Sensor HiRAP 1000.0 sa/sec (100.00 Hz)

Location LAB1O2, ER1, Lockers 3,4

Orientation Space Station Analysis (SSA)

Inc/Flight Increment: 18, Flight: ULF2

Plot Type Spectrogram

NOTES: The Urine Processing Assembly (UPA) was

installed in LAB1P4 during ULF-2 as part of the Water Recovery System (WRS).

The UPA contains 3 known potential microgravity disturbers: Distillation Assembly (DA) centrifuge, Fluids Control & Pump Assembly (FCPA) and the Pressure Control & Pump Assembly (PCPA).

MAMS HiRAP captured a DA centrifuge signature during a 5 hour run on GMT 348. The spectrogram on the left shows two distinct traces at 3.6 Hz and 33.3 Hz during this run. Data acquired from ISS telemetry confirms the DA centrifuge speed near 220 rpm.

No signature for PCPA is seen, which was known to be operating intermittently at 2500 rpm during the run. (~42 Hz).

Whether the FCPA was operating at this time was not determined.

Urine Processing Assembly (UPA) Qualify

PIMS ISS Acceleration Handbook Date last modified 12/22/11

Regime: Vibratory

Category: Vehicle

Source: Urine Processing Assembly

Microgravity Science Division Glenn Research Center

−12

−11

−10

−9

−8

−7

−6

Σ PS

D M

agni

tude

[lo

g 10(g

2 /Hz)

]

GMT 13−December−2008, 348/hh:mm

Freq

uenc

y (H

z)

Start GMT 13−December−2008, 348/16:00:00

mams, hirap020Span = 8.01 hoursHanning, k = 1091

sum

Temp. Res. = 24.381 sec, No = 0Δf = 0.041 Hz, Nfft = 4096168.00 sa/sec (20.00 Hz)mams, hirap020 at LAB1O2, ER1, Lockers 3,4:[138.7 −16.2 142.3]

16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:000

2

4

6

8

10

12

14

16

18

20

Description

Sensor HiRAP 1000.0 sa/sec (100.00 Hz)

Location LAB1O2, ER1, Lockers 3,4

Orientation Space Station Analysis (SSA)

Inc/Flight Increment: 18, Flight: ULF2

Plot Type Spectrogram

NOTES: The spectrogram at the left is of HiRAP data

filtered at 20Hz, showing more clearly the 3.6 Hz operating frequency of the DA centrifuge.

The DA was designed with isolators used for

passive vibration isolation. By the time of the run on GMT 348, these isolators had been removed.

The WRS racks were be moved to Node 3 on

GMT 049/18-February-2010.

Urine Processing Assembly (UPA) Qualify

PIMS ISS Acceleration Handbook Date last modified 12/22/11

Regime: Vibratory

Category: Vehicle

Source: Urine Processing Assembly Microgravity Science Division Glenn Research Center

1 http://www.msnbc.msn.com/id/21134540/vp/18136150

Description

Sensor HiRAP 1000.0 sa/sec (100.00 Hz)

Location LAB1O2, ER1, Lockers 3,4

Inc/Flight Increment: 18, Flight: ULF2

Plot Type Cumulative RMS

NOTES: To quantify the impact of the DA

centrifuge operation, RMS accelerations are compared during centrifuge operation to those periods when it was off. The time periods chosen, were during crew sleep to help isolate the effects of the centrifuge from any vehicle modes.

The image below shows an undated photograph of the WRS racks on the ground. The DA is circled in orange.

Urine Processing Assembly (UPA) QUANTIFY

PIMS ISS Acceleration Handbook Date last modified 12/22/11

Regime: Vibratory

Category: Crew

Source: TVIS

Microgravity Science Division Glenn Research Center

0 20 40 60 80 100 120 140 160 1800

0.5

1

1.5

2

2.5

3x 10

−5

RM

S A

ccel

erat

ion

( g

RM

S )

Time (minutes) from: /misc/yoda/pub/pad/, $Name: $, 18−Dec−2008,22:29:22.056

Start GMT 13−December−2008, 348/16:00:00.000Urine Processing Assembly, 33.0 > f > 33.5 Hanning, k = 1

SSAnalysis[ 0.0 0.0 0.0]Increment: 18, Flight: ULF2

Temp. Resolution: 4.096 secΔf: 0.122 Hz, Range: 33 − 33.5 Hz1000.0000 sa/sec (100.00 Hz)mams, hirap at LAB1O2, ER1, Lockers 3,4:[138.68 −16.18 142.35]

0 50 100 1500

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1x 10

−5 R

MS

Acc

eler

atio

n (

g R

MS

)

Time (minutes) from: /misc/yoda/pub/pad/, $Name: $, 18−Dec−2008,21:43:27.109

Start GMT 13−December−2008, 348/21:00:00.000Urine Processing Assembly 3.5 Hz < f < 3.7 Hz Hanning, k = 1SSAnalysis[ 0.0 0.0 0.0]

Increment: 18, Flight: ULF2

Temp. Resolution: 4.096 secΔf: 0.122 Hz, Range: 3.5 − 3.7 Hz1000.0000 sa/sec (100.00 Hz)mams, hirap at LAB1O2, ER1, Lockers 3,4:[138.68 −16.18 142.35]

Freq (Hz) RMS Acceleration

(g) OFF ON

3.5 -3.7 2.23 5.22 33.0 - 33.5 8.48 14.55

ON

ON

OFF

OFF