ASTROSAT CZTI

Data Quality Report

Orbit 46229

Creation date: 2024-06-27T23:20:34.843608
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/AS1A13_065T07_9000006188_46229cztM0_level2.fits modeM0/AS1A13_065T07_9000006188_46229cztM0_level2_quad_clean.evt
Size (bytes)166,919,04031,970,880
Size159.2 MB 30.5 MB
Events in quadrant A2,375,207203,269
Events in quadrant B1,286,351210,772
Events in quadrant C1,175,209202,138
Events in quadrant D1,159,693185,133

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085831
B052651
C050431
D050371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23171476.344411%
B2317371.596893%
C2317130.561070%
D2316261.122625%

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 3497 2317 24 24 0.69% 1.04%
B 3497 2318 0 0 0.00% 0.00%
C 3497 2318 4 4 0.11% 0.17%
D 3496 2317 3 3 0.09% 0.13%

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 10 83 1227485 19674.27 291 284 62.4
A 7 3 11460 179.17 291 284 62.4
A 9 191 8830 137.01 291 284 62.4
B 3 112 83827 1401.42 292 283 59.6
B 0 189 11215 183.38 292 283 59.6
B 0 174 8048 130.25 292 283 59.6
C 12 2 45416 655.7 287 287 68.8
C 1 3 8637 121.32 287 287 68.8
C 9 69 2461 31.59 287 287 68.8
D 2 249 52551 705.92 287 278 74.0
D 2 234 11589 152.75 287 278 74.0
D 2 233 6490 83.89 287 278 74.0

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