ASTROSAT CZTI

Data Quality Report

Orbit 15703

Creation date: 2024-06-27T17:12:20.928103
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/AS1A04_198T01_9000002322_15703cztM0_level2.evt modeM0/AS1A04_198T01_9000002322_15703cztM0_level2_quad_clean.evt
Size (bytes)191,041,92031,582,080
Size182.2 MB 30.1 MB
Events in quadrant A1,176,339197,317
Events in quadrant B1,186,087206,527
Events in quadrant C1,224,725200,969
Events in quadrant D2,047,400192,447

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047872
B048161
C049961
D075071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2194180.820419%
B2194241.093892%
C2194331.504102%
D219431614.402917%

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 3470 2196 2 2 0.06% 0.09%
B 3470 2196 0 0 0.00% 0.00%
C 3470 2196 0 0 0.00% 0.00%
D 3470 2196 252 252 7.26% 11.48%

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 9 143 46821 772.39 293 286 60.2
A 0 226 2569 37.89 293 286 60.2
A 12 194 2153 30.99 293 286 60.2
B 5 236 10313 173.1 297 290 57.9
B 12 111 6483 106.96 297 290 57.9
B 11 111 5509 90.14 297 290 57.9
C 3 233 50598 728.87 289 292 69.0
C 14 238 44870 645.87 289 292 69.0
C 13 61 2043 25.37 289 292 69.0
D 1 52 981089 14346.56 274 265 68.4
D 7 223 21435 309.65 274 265 68.4
D 2 234 7313 103.09 274 265 68.4

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