ASTROSAT CZTI

Data Quality Report

Orbit 29079

Creation date: 2024-06-27T20:00:01.200144
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_094T17_9000004176_29079cztM0_level2.evt modeM0/AS1A10_094T17_9000004176_29079cztM0_level2_quad_clean.evt
Size (bytes)289,252,80060,793,920
Size275.9 MB 58.0 MB
Events in quadrant A1,389,640439,768
Events in quadrant B1,528,816441,109
Events in quadrant C1,361,092405,601
Events in quadrant D4,282,607347,462

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060150
B064430
C059390
D0147500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289310.034566%
B289480.276434%
C289460.207326%
D289475225.984796%

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 2893 2893 0 0 0.00% 0.00%
B 2894 2894 9 9 0.31% 0.31%
C 2893 2893 0 0 0.00% 0.00%
D 2893 2893 888 888 30.69% 30.69%

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 13 254 5794 74.31 358 352 73.2
A 6 16 4960 62.93 358 352 73.2
A 0 226 3140 38.07 358 352 73.2
B 5 172 57987 863.54 355 348 66.7
B 5 255 38181 566.81 355 348 66.7
B 3 209 12759 185.94 355 348 66.7
C 14 238 54350 705.89 328 330 76.5
C 2 16 16987 217.66 328 330 76.5
C 2 114 6995 87.09 328 330 76.5
D 1 52 2092731 28533.87 302 293 73.3
D 8 195 532428 7256.54 302 293 73.3
D 7 69 303677 4137.14 302 293 73.3

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