ASTROSAT CZTI

Data Quality Report

Orbit 16434

Creation date: 2024-06-27T17:22:38.738318
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_069T04_9000002428_16434cztM0_level2.evt modeM0/AS1A05_069T04_9000002428_16434cztM0_level2_quad_clean.evt
Size (bytes)278,092,80045,362,880
Size265.2 MB 43.3 MB
Events in quadrant A1,985,058274,280
Events in quadrant B2,214,634279,690
Events in quadrant C2,019,694268,280
Events in quadrant D1,922,921262,478

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085112
B090291
C085261
D085631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40901343.276284%
B40901403.422983%
C40901253.056235%
D40901092.665037%

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 4381 4091 3 3 0.07% 0.07%
B 4381 4091 12 12 0.27% 0.29%
C 4381 4091 0 0 0.00% 0.00%
D 4381 4091 7 7 0.16% 0.17%

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 30195 282.71 507 495 105.1
A 0 226 4469 37.83 507 495 105.1
A 9 143 3929 32.69 507 495 105.1
B 15 35 88560 877.64 510 496 100.3
B 0 189 72199 714.59 510 496 100.3
B 0 198 20871 203.06 510 496 100.3
C 14 238 73824 631.96 489 491 116.0
C 3 233 18510 155.28 489 491 116.0
C 7 247 14103 117.3 489 491 116.0
D 12 218 17027 133.11 496 480 124.3
D 2 234 15186 118.3 496 480 124.3
D 2 120 11994 92.63 496 480 124.3

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