ASTROSAT CZTI

Data Quality Report

Orbit 07483

Creation date: 2024-06-27T15:20:26.229236
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/AS1G06_087T04_9000001028_07483cztM0_level2.evt modeM0/AS1G06_087T04_9000001028_07483cztM0_level2_quad_clean.evt
Size (bytes)139,129,9209,515,520
Size132.7 MB 9.1 MB
Events in quadrant A937,30541,490
Events in quadrant B959,97742,118
Events in quadrant C901,22141,390
Events in quadrant D1,299,24339,610

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037641
B039281
C036381
D049411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1667130.779844%
B166780.479904%
C166770.419916%
D1667895.338932%

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 1667 1667 2 2 0.12% 0.12%
B 1667 1667 1 1 0.06% 0.06%
C 1667 1667 0 0 0.00% 0.00%
D 1667 1667 62 62 3.72% 3.72%

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 15 239 30269 611.83 235 230 49.1
A 0 226 2262 41.39 235 230 49.1
A 12 194 2193 39.98 235 230 49.1
B 0 214 44060 980.15 235 230 44.7
B 12 111 4095 86.43 235 230 44.7
B 0 229 3940 82.96 235 230 44.7
C 13 61 1748 28.03 230 231 54.1
C 8 222 997 14.15 230 231 54.1
C 1 16 714 8.92 230 231 54.1
D 1 52 288585 5119.68 226 219 56.3
D 12 233 35760 631.0 226 219 56.3
D 15 47 34757 613.19 226 219 56.3

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