ASTROSAT CZTI

Data Quality Report

Orbit 36553

Creation date: 2024-06-27T21:28:29.318427
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/AS1C07_006T01_9000005218_36553cztM0_level2.evt modeM0/AS1C07_006T01_9000005218_36553cztM0_level2_quad_clean.evt
Size (bytes)231,857,28029,750,400
Size221.1 MB 28.4 MB
Events in quadrant A1,422,163182,207
Events in quadrant B1,528,813181,920
Events in quadrant C1,754,868170,916
Events in quadrant D2,130,640171,643

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059432
B062751
C068421
D084361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2705260.961183%
B2705250.924214%
C27051244.584104%
D2705471.737523%

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 4679 2706 17 17 0.36% 0.63%
B 4679 2706 11 11 0.24% 0.41%
C 4679 2706 91 91 1.94% 3.36%
D 4679 2706 31 31 0.66% 1.15%

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 10 83 105156 1604.64 315 309 65.3
A 15 223 82857 1263.36 315 309 65.3
A 9 143 10823 160.91 315 309 65.3
B 0 219 90126 1463.91 313 305 61.4
B 5 255 84272 1368.5 313 305 61.4
B 0 189 44107 713.89 313 305 61.4
C 0 10 384645 5379.54 302 303 71.4
C 15 214 113161 1579.65 302 303 71.4
C 14 254 53197 740.34 302 303 71.4
D 12 235 646878 8546.1 306 297 75.7
D 2 250 63322 833.02 306 297 75.7
D 13 249 51849 681.38 306 297 75.7

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