ASTROSAT CZTI

Data Quality Report

Orbit 45230

Creation date: 2024-06-27T23:10:56.243008
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/AS1A13_049T07_9000006056_45230cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45230cztM0_level2_quad_clean.evt
Size (bytes)549,826,560109,615,680
Size524.4 MB 104.5 MB
Events in quadrant A5,845,038729,835
Events in quadrant B3,435,684779,882
Events in quadrant C3,120,448754,935
Events in quadrant D7,422,659579,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220685
B0146972
C0141042
D0266872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68162914.269366%
B68171161.701628%
C6817731.070852%
D6817127418.688573%

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 7652 6818 55 55 0.72% 0.81%
B 7652 6818 8 8 0.10% 0.12%
C 7652 6817 3 3 0.04% 0.04%
D 7652 6817 1097 1097 14.34% 16.09%

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 10 83 2642103 16602.98 768 750 159.1
A 13 248 166169 1039.79 768 750 159.1
A 15 174 43690 269.91 768 750 159.1
B 5 32 188938 1235.26 775 750 152.3
B 3 112 86045 559.88 775 750 152.3
B 0 183 43541 280.88 775 750 152.3
C 14 254 40047 216.04 777 781 181.8
C 12 2 23007 122.29 777 781 181.8
C 2 14 13504 70.0 777 781 181.8
D 13 249 2669399 14643.76 717 695 182.2
D 5 235 793157 4348.41 717 695 182.2
D 1 52 447330 2450.78 717 695 182.2

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