ASTROSAT CZTI

Data Quality Report

Orbit 19029

Creation date: 2024-06-27T17:58:17.023182
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_046T01_9000002834_19029cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19029cztM0_level2_quad_clean.evt
Size (bytes)298,054,08057,320,640
Size284.2 MB 54.7 MB
Events in quadrant A1,981,345366,464
Events in quadrant B2,265,921373,581
Events in quadrant C2,014,269360,902
Events in quadrant D2,486,840347,141

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084841
B094142
C085061
D0102111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4075240.588957%
B40741042.552774%
C4074400.981836%
D40741253.068238%

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 5100 4076 0 0 0.00% 0.00%
B 5099 4075 26 26 0.51% 0.64%
C 5099 4075 0 0 0.00% 0.00%
D 5099 4075 82 82 1.61% 2.01%

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 14 235 17179 159.5 509 497 104.6
A 0 226 4397 37.29 509 497 104.6
A 3 137 3929 32.81 509 497 104.6
B 3 112 208067 2090.24 507 494 99.3
B 7 220 37132 368.94 507 494 99.3
B 0 198 13561 131.58 507 494 99.3
C 14 238 77329 658.0 492 496 116.8
C 3 233 15869 131.66 492 496 116.8
C 13 61 3424 25.08 492 496 116.8
D 7 238 423000 3525.8 491 476 119.8
D 1 52 193730 1612.63 491 476 119.8
D 2 234 17678 143.54 491 476 119.8

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