ASTROSAT CZTI

Data Quality Report

Orbit 29577

Creation date: 2024-06-27T20:05:39.743020
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_093T01_9000004266_29577cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29577cztM0_level2_quad_clean.evt
Size (bytes)553,210,56098,879,040
Size527.6 MB 94.3 MB
Events in quadrant A3,431,154646,015
Events in quadrant B3,964,460656,523
Events in quadrant C3,682,145600,428
Events in quadrant D5,184,514587,343

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149422
B0163322
C0156842
D0201682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72372162.984662%
B72382914.020448%
C72386408.842222%
D72382162.984250%

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 7267 7239 0 0 0.00% 0.00%
B 7268 7240 40 40 0.55% 0.55%
C 7268 7240 0 0 0.00% 0.00%
D 7268 7240 56 56 0.77% 0.77%

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 13121 67.99 886 866 180.2
A 3 137 9134 45.87 886 866 180.2
A 0 13 8721 43.58 886 866 180.2
B 0 189 371072 2173.78 876 853 170.3
B 0 230 58235 336.92 876 853 170.3
B 0 156 35170 201.5 876 853 170.3
C 14 238 262960 1368.49 817 822 191.6
C 14 254 184848 960.7 817 822 191.6
C 3 233 35629 181.71 817 822 191.6
D 12 33 1334456 6564.04 852 826 203.2
D 8 195 206132 1010.5 852 826 203.2
D 13 104 150793 738.13 852 826 203.2

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