ASTROSAT CZTI

Data Quality Report

Orbit 32882

Creation date: 2024-06-27T20:42:55.317215
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/AS1A11_005T04_9000004742_32882cztM0_level2.evt modeM0/AS1A11_005T04_9000004742_32882cztM0_level2_quad_clean.evt
Size (bytes)384,166,08046,056,960
Size366.4 MB 43.9 MB
Events in quadrant A1,777,774301,535
Events in quadrant B4,196,044241,823
Events in quadrant C2,137,740298,185
Events in quadrant D3,256,688276,240

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078841
B0150091
C088431
D0123711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A390950.127910%
B3909106527.244820%
C3909561.432591%
D39091874.783832%

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 5432 3910 0 0 0.00% 0.00%
B 5432 3910 763 763 14.05% 19.51%
C 5432 3910 54 54 0.99% 1.38%
D 5432 3910 167 167 3.07% 4.27%

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 63 14417 150.86 452 443 92.6
A 13 6 6946 70.2 452 443 92.6
A 13 254 6889 69.59 452 443 92.6
B 5 172 2506506 32592.83 395 385 76.9
B 0 197 72406 936.65 395 385 76.9
B 15 85 26720 342.49 395 385 76.9
C 3 233 192577 1888.46 435 439 101.7
C 0 10 163621 1603.86 435 439 101.7
C 1 241 69767 681.4 435 439 101.7
D 8 195 497936 4564.36 427 416 109.0
D 12 218 304462 2789.39 427 416 109.0
D 14 52 251965 2307.77 427 416 109.0

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