ASTROSAT CZTI

Data Quality Report

Orbit 32032

Creation date: 2024-06-27T20:35:39.396328
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/AS1T04_046T01_9000004680_32032cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32032cztM0_level2_quad_clean.evt
Size (bytes)681,068,16076,510,080
Size649.5 MB 73.0 MB
Events in quadrant A3,486,269480,921
Events in quadrant B7,277,948458,496
Events in quadrant C4,467,267469,475
Events in quadrant D4,964,784463,346

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141962
B0258052
C0180262
D0189592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366400.628338%
B6366116718.331762%
C63662133.345900%
D63662293.597235%

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 7651 6366 0 0 0.00% 0.00%
B 7650 6365 860 860 11.24% 13.51%
C 7651 6366 38 38 0.50% 0.60%
D 7651 6366 177 177 2.31% 2.78%

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 12068 62.75 901 885 178.2
A 13 6 11135 57.51 901 885 178.2
A 3 137 7921 39.48 901 885 178.2
B 12 18 2116799 14284.63 811 795 148.1
B 6 159 1569223 10588.08 811 795 148.1
B 0 190 189892 1276.55 811 795 148.1
C 3 233 710368 3601.7 866 874 197.0
C 0 10 190291 961.56 866 874 197.0
C 14 238 143994 726.54 866 874 197.0
D 8 195 1031543 5121.29 867 847 201.3
D 12 218 546518 2711.31 867 847 201.3
D 2 250 41081 199.91 867 847 201.3

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