ASTROSAT CZTI

Data Quality Report

Orbit 28119

Creation date: 2024-06-27T19:48:17.443495
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_090T14_9000004064_28119cztM0_level2.evt modeM0/AS1A10_090T14_9000004064_28119cztM0_level2_quad_clean.evt
Size (bytes)606,905,28091,356,480
Size578.8 MB 87.1 MB
Events in quadrant A3,209,751595,287
Events in quadrant B3,453,725596,339
Events in quadrant C3,312,718571,793
Events in quadrant D7,935,491521,435

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140520
B0146950
C0142240
D0282830

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6912230.332755%
B6912711.027199%
C6912831.200810%
D6911156122.587180%

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 7792 6913 0 0 0.00% 0.00%
B 7792 6913 30 30 0.39% 0.43%
C 7792 6913 2 2 0.03% 0.03%
D 7791 6912 1356 1356 17.40% 19.62%

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 12295 69.38 827 810 165.5
A 4 2 11307 63.41 827 810 165.5
A 3 137 7902 42.84 827 810 165.5
B 10 245 151268 963.3 818 795 156.2
B 4 200 24832 153.88 818 795 156.2
B 10 246 22811 140.94 818 795 156.2
C 14 238 128618 676.92 800 803 188.8
C 3 233 64617 337.97 800 803 188.8
C 13 61 5528 25.02 800 803 188.8
D 12 2 2822120 16396.68 715 695 172.1
D 1 52 1454725 8450.08 715 695 172.1
D 2 250 476358 2764.31 715 695 172.1

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