ASTROSAT CZTI

Data Quality Report

Orbit 10368

Creation date: 2024-06-27T15:58:28.551500
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/AS1G07_048T01_9000001494_10368cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10368cztM0_level2_quad_clean.evt
Size (bytes)390,611,52079,430,400
Size372.5 MB 75.8 MB
Events in quadrant A2,636,283505,986
Events in quadrant B2,748,065494,518
Events in quadrant C2,581,503501,608
Events in quadrant D3,468,885498,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02747115726
B03107219336
C02866416891
D03518021048

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021
B021
C021
D021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282152
B0282155
C0282155
D0274145

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5706851.489660%
B54921031.875455%
C5716771.347096%
D61291181.925273%

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 7045 6702 0 0 0.00% 0.00%
B 7045 6532 1 1 0.01% 0.02%
C 7045 6700 0 0 0.00% 0.00%
D 6963 6564 12 12 0.17% 0.18%

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 13 251 16385 113.43 676 662 138.6
A 8 15 13901 95.51 676 662 138.6
A 0 226 6256 40.36 676 662 138.6
B 4 239 100032 793.64 649 633 125.2
B 0 219 38230 300.19 649 633 125.2
B 0 214 35135 275.48 649 633 125.2
C 14 234 9515 57.36 659 660 154.4
C 13 61 4971 27.92 659 660 154.4
C 8 222 2917 14.62 659 660 154.4
D 8 195 230194 1351.59 704 685 169.8
D 12 233 183665 1077.58 704 685 169.8
D 1 20 104840 613.37 704 685 169.8

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