ASTROSAT CZTI

Data Quality Report

Orbit 23130

Creation date: 2024-06-27T18:50:16.257023
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/AS1T03_173T01_9000003416_23130cztM0_level2.evt modeM0/AS1T03_173T01_9000003416_23130cztM0_level2_quad_clean.evt
Size (bytes)513,570,240136,477,440
Size489.8 MB 130.2 MB
Events in quadrant A3,221,044935,803
Events in quadrant B3,372,079971,337
Events in quadrant C4,947,608891,608
Events in quadrant D3,592,191902,178

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136612
B0141122
C0188043
D0147912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6201661.064344%
B6201731.177229%
C620070911.435484%
D6200901.451613%

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 7591 6202 0 0 0.00% 0.00%
B 7591 6202 1 1 0.01% 0.02%
C 7590 6200 307 307 4.04% 4.95%
D 7590 6201 30 30 0.40% 0.48%

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 6 16 41710 254.09 821 807 161.0
A 2 79 11827 68.46 821 807 161.0
A 13 254 11194 64.52 821 807 161.0
B 0 190 70375 462.43 835 816 150.4
B 12 111 16760 106.0 835 816 150.4
B 0 229 14696 92.27 835 816 150.4
C 8 208 1404925 7849.47 785 792 178.9
C 2 16 278455 1552.21 785 792 178.9
C 14 238 126212 701.13 785 792 178.9
D 1 52 160712 833.63 812 792 191.8
D 13 153 100152 517.94 812 792 191.8
D 13 172 61938 318.74 812 792 191.8

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