ASTROSAT CZTI

Data Quality Report

Orbit 30542

Creation date: 2024-06-27T20:16:41.374745
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_053T17_9000004396_30542cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30542cztM0_level2_quad_clean.evt
Size (bytes)583,790,40088,922,880
Size556.7 MB 84.8 MB
Events in quadrant A3,525,914592,238
Events in quadrant B5,322,949586,077
Events in quadrant C4,084,239528,337
Events in quadrant D4,320,880546,268

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142291
B0198501
C0160641
D0171051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6295620.984909%
B62951432.271644%
C62952854.527403%
D6296641.016518%

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 7625 6296 2 2 0.03% 0.03%
B 7625 6295 5 5 0.07% 0.08%
C 7625 6296 130 130 1.70% 2.06%
D 7626 6296 17 17 0.22% 0.27%

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 8 192 13071 68.09 911 897 178.8
A 13 254 11117 57.16 911 897 178.8
A 3 137 8006 39.76 911 897 178.8
B 6 159 1692790 10226.73 885 866 165.4
B 6 36 83688 500.61 885 866 165.4
B 0 229 52049 309.37 885 866 165.4
C 10 22 448933 2376.53 822 830 188.6
C 0 10 210307 1110.97 822 830 188.6
C 14 238 148337 782.31 822 830 188.6
D 7 238 531306 2626.34 871 854 202.0
D 8 195 275593 1360.27 871 854 202.0
D 2 250 75867 371.4 871 854 202.0

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