ASTROSAT CZTI

Data Quality Report

Orbit 16327

Creation date: 2024-06-27T17:21:04.958119
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/AS1A05_096T04_9000002406_16327cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16327cztM0_level2_quad_clean.evt
Size (bytes)449,971,200104,696,640
Size429.1 MB 99.8 MB
Events in quadrant A3,141,148688,719
Events in quadrant B3,997,286702,717
Events in quadrant C3,037,246697,006
Events in quadrant D3,059,450678,692

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127852
B0155991
C0123011
D0125581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57811001.729805%
B57812444.220723%
C5781771.331949%
D5781591.020585%

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 7142 5783 44 44 0.62% 0.76%
B 7142 5783 79 79 1.11% 1.37%
C 7142 5783 0 0 0.00% 0.00%
D 7142 5783 27 27 0.38% 0.47%

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 15 174 285838 1928.43 742 728 147.8
A 0 226 6388 38.28 742 728 147.8
A 12 194 5485 32.18 742 728 147.8
B 3 112 831343 6122.31 741 724 135.7
B 0 189 97455 712.98 741 724 135.7
B 10 16 49220 357.45 741 724 135.7
C 14 238 115615 673.42 741 750 170.6
C 3 233 17803 99.98 741 750 170.6
C 0 207 13296 73.55 741 750 170.6
D 2 14 111101 619.5 745 726 178.2
D 1 52 37954 208.95 745 726 178.2
D 2 122 36985 203.51 745 726 178.2

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