ASTROSAT CZTI

Data Quality Report

Orbit 30366

Creation date: 2024-06-27T20:14:20.084147
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/AS1A10_053T17_9000004366_30366cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30366cztM0_level2_quad_clean.evt
Size (bytes)931,302,720120,458,880
Size888.2 MB 114.9 MB
Events in quadrant A6,361,365742,664
Events in quadrant B8,009,241755,888
Events in quadrant C7,661,114705,249
Events in quadrant D5,468,298720,662

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254912
B0315262
C0296432
D0227582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104383873.707607%
B104391481.417760%
C104397276.964269%
D10439970.929208%

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 12618 10438 258 258 2.04% 2.47%
B 12619 10439 0 0 0.00% 0.00%
C 12619 10439 259 259 2.05% 2.48%
D 12619 10439 27 27 0.21% 0.26%

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 0 13 910161 3432.55 1327 1302 264.8
A 12 96 303058 1139.66 1327 1302 264.8
A 8 192 25475 91.29 1327 1302 264.8
B 6 159 2818158 11419.71 1318 1286 246.7
B 12 111 30909 120.09 1318 1286 246.7
B 11 111 28079 108.62 1318 1286 246.7
C 3 233 2554515 8847.55 1249 1260 288.6
C 14 238 208762 719.04 1249 1260 288.6
C 2 114 24039 78.93 1249 1260 288.6
D 8 195 289707 897.28 1288 1258 321.5
D 2 250 128252 395.04 1288 1258 321.5
D 2 234 50179 152.18 1288 1258 321.5

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