ASTROSAT CZTI

Data Quality Report

Orbit 16357

Creation date: 2024-06-27T17:21:30.882665
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_069T02_9000002414_16357cztM0_level2.evt modeM0/AS1A05_069T02_9000002414_16357cztM0_level2_quad_clean.evt
Size (bytes)329,708,16055,601,280
Size314.4 MB 53.0 MB
Events in quadrant A2,248,246351,372
Events in quadrant B2,410,815360,053
Events in quadrant C2,398,270335,042
Events in quadrant D2,622,225321,487

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092170
B096820
C096930
D0106440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4482150.334672%
B4482220.490852%
C4482190.423918%
D4482841.874163%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 4483 4483 6 6 0.13% 0.13%
B 4483 4483 12 12 0.27% 0.27%
C 4483 4483 3 3 0.07% 0.07%
D 4483 4483 70 70 1.56% 1.56%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 31429 268.08 576 567 115.1
A 0 226 5042 38.87 576 567 115.1
A 12 194 4190 31.47 576 567 115.1
B 4 173 31485 286.06 575 562 108.1
B 10 16 30755 279.31 575 562 108.1
B 15 35 25174 227.68 575 562 108.1
C 3 233 174773 1391.6 543 547 125.2
C 14 238 87142 691.66 543 547 125.2
C 0 207 12648 96.65 543 547 125.2
D 12 110 220621 1680.91 544 528 130.9
D 2 122 102805 781.12 544 528 130.9
D 10 70 91364 693.74 544 528 130.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter