ASTROSAT CZTI

Data Quality Report

Orbit 46333

Creation date: 2024-06-27T23:21:51.825322
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/AS1T05_200T01_9000006196_46333cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46333cztM0_level2_quad_clean.evt
Size (bytes)241,519,68029,283,840
Size230.3 MB 27.9 MB
Events in quadrant A5,201,29646,902
Events in quadrant B1,639,732240,284
Events in quadrant C900,604227,868
Events in quadrant D1,023,038211,055

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169630
B064400
C045340
D047870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2225187784.359551%
B2225421.887640%
C222570.314607%
D2226170.763702%

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 2224 2224 1547 1547 69.56% 69.56%
B 2225 2225 30 30 1.35% 1.35%
C 2225 2225 5 5 0.22% 0.22%
D 2226 2226 13 13 0.58% 0.58%

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 15 223 4174068 155752.5 120 118 26.8
A 10 83 538712 20097.84 120 118 26.8
A 9 191 14032 519.21 120 118 26.8
B 3 112 622844 13052.06 228 221 47.7
B 5 172 46117 962.12 228 221 47.7
B 4 171 23632 490.77 228 221 47.7
C 12 2 37952 712.38 219 221 53.0
C 14 67 3532 62.51 219 221 53.0
C 12 249 3284 57.83 219 221 53.0
D 13 249 79519 1363.61 222 215 58.2
D 2 249 33538 572.98 222 215 58.2
D 7 204 28174 480.75 222 215 58.2

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