ASTROSAT CZTI

Data Quality Report

Orbit 30112

Creation date: 2024-06-27T20:11:02.853346
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/AS1C05_019T01_9000004332_30112cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30112cztM0_level2_quad_clean.evt
Size (bytes)559,347,840131,696,640
Size533.4 MB 125.6 MB
Events in quadrant A3,267,946899,052
Events in quadrant B5,256,494897,647
Events in quadrant C3,357,268856,780
Events in quadrant D4,579,653843,568

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144651
B0212602
C0145431
D0183681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7066700.990659%
B70651692.392074%
C70661582.236060%
D7066520.735918%

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 7306 7067 2 2 0.03% 0.03%
B 7305 7066 1 1 0.01% 0.01%
C 7306 7067 0 0 0.00% 0.00%
D 7306 7067 6 6 0.08% 0.08%

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 14 238 36196 211.64 835 818 167.2
A 13 254 13786 77.58 835 818 167.2
A 8 192 10985 60.82 835 818 167.2
B 6 159 1967389 12496.74 822 801 157.4
B 0 190 47487 296.67 822 801 157.4
B 12 111 19567 119.25 822 801 157.4
C 14 238 150542 818.24 789 792 183.0
C 3 233 80203 433.9 789 792 183.0
C 14 254 29270 155.6 789 792 183.0
D 1 52 874952 4294.61 796 779 203.6
D 8 195 272229 1333.57 796 779 203.6
D 12 227 262262 1284.61 796 779 203.6

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