ASTROSAT CZTI

Data Quality Report

Orbit 28288

Creation date: 2024-06-27T19:50:05.205015
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_102T06_9000004078_28288cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28288cztM0_level2_quad_clean.evt
Size (bytes)1,357,073,280247,743,360
Size1.3 GB 236.3 MB
Events in quadrant A7,872,8601,619,044
Events in quadrant B9,485,4731,639,698
Events in quadrant C7,946,1521,589,495
Events in quadrant D14,643,9081,480,221

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0349480
B0397000
C0350610
D0550930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170452391.402171%
B170466864.024405%
C170462771.625015%
D1704516139.463186%

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 18780 17049 0 0 0.00% 0.00%
B 18781 17050 316 316 1.68% 1.85%
C 18781 17050 11 11 0.06% 0.06%
D 18780 17048 1272 1272 6.77% 7.46%

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 29206 66.63 2039 1990 408.4
A 3 137 19825 43.67 2039 1990 408.4
A 0 226 17190 37.21 2039 1990 408.4
B 10 245 1517780 3997.33 2003 1951 379.2
B 4 200 64086 163.85 2003 1951 379.2
B 12 111 47456 120.0 2003 1951 379.2
C 14 238 317348 704.84 1945 1958 447.5
C 15 208 37164 78.68 1945 1958 447.5
C 3 233 20033 40.39 1945 1958 447.5
D 1 52 5766792 12944.25 1896 1841 445.4
D 8 195 1112042 2492.77 1896 1841 445.4
D 2 250 366283 818.29 1896 1841 445.4

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