ASTROSAT CZTI

Data Quality Report

Orbit 05331

Creation date: 2024-06-27T14:53:59.679208
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/AS1G05_240T01_9000000674_05331cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05331cztM0_level2_quad_clean.evt
Size (bytes)167,290,56019,831,680
Size159.5 MB 18.9 MB
Events in quadrant A1,153,85799,894
Events in quadrant B1,292,768104,448
Events in quadrant C1,179,472101,780
Events in quadrant D1,250,59496,702

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05649175
B05920165
C05674119
D05883140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0584
B0580
C0582
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A273530.109689%
B274280.291758%
C276120.072438%
D275360.217944%

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 2821 2812 0 0 0.00% 0.00%
B 2821 2814 2 2 0.07% 0.07%
C 2821 2818 0 0 0.00% 0.00%
D 2821 2816 6 6 0.21% 0.21%

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 14618 229.44 295 288 62.5
A 12 194 2987 43.21 295 288 62.5
A 0 226 2850 41.02 295 288 62.5
B 4 80 57847 979.72 297 290 58.7
B 4 48 42524 718.9 297 290 58.7
B 10 16 16573 277.17 297 290 58.7
C 1 16 36658 527.23 292 294 69.0
C 13 61 2293 28.98 292 294 69.0
C 3 202 741 6.48 292 294 69.0
D 13 137 51260 703.94 293 284 72.4
D 2 16 30480 416.98 293 284 72.4
D 2 234 17394 236.27 293 284 72.4

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