ASTROSAT CZTI

Data Quality Report

Orbit 04752

Creation date: 2024-06-27T14:46:21.894731
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/AS1G05_195T01_9000000598_04752cztM0_level2.evt modeM0/AS1G05_195T01_9000000598_04752cztM0_level2_quad_clean.evt
Size (bytes)495,901,44068,284,800
Size472.9 MB 65.1 MB
Events in quadrant A3,262,121392,463
Events in quadrant B3,932,119389,215
Events in quadrant C3,897,791396,982
Events in quadrant D3,432,615383,059

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150913
B0166812
C0168092
D0158172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72501662.289655%
B72503034.179310%
C72503504.827586%
D72502012.772414%

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 7385 7253 3 3 0.04% 0.04%
B 7385 7253 103 103 1.39% 1.42%
C 7385 7253 165 165 2.23% 2.27%
D 7385 7253 28 28 0.38% 0.39%

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 0 149 29419 165.7 830 807 172.7
A 0 230 12977 70.48 830 807 172.7
A 0 226 11729 63.25 830 807 172.7
B 10 16 449792 2782.19 835 813 161.4
B 4 80 145954 899.4 835 813 161.4
B 14 167 44266 269.27 835 813 161.4
C 14 48 684653 3625.94 805 809 188.6
C 9 237 32734 169.28 805 809 188.6
C 8 128 17385 87.89 805 809 188.6
D 2 234 147121 750.29 804 779 195.0
D 2 136 123609 629.75 804 779 195.0
D 13 235 64918 328.84 804 779 195.0

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