ASTROSAT CZTI

Data Quality Report

Orbit 16383

Creation date: 2024-06-27T17:21:53.880859
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/AS1A05_069T05_9000002420_16383cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16383cztM0_level2_quad_clean.evt
Size (bytes)441,322,56087,212,160
Size420.9 MB 83.2 MB
Events in quadrant A3,084,233563,362
Events in quadrant B3,482,592582,739
Events in quadrant C3,135,220545,966
Events in quadrant D3,240,238514,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130963
B0143642
C0131082
D0137992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6230130.208668%
B6230450.722311%
C6230410.658106%
D62301051.685393%

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 7496 6232 3 3 0.04% 0.05%
B 7496 6232 12 12 0.16% 0.19%
C 7496 6232 0 0 0.00% 0.00%
D 7496 6232 60 60 0.80% 0.96%

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 15 174 66360 419.66 779 764 156.3
A 15 223 18610 114.17 779 764 156.3
A 0 226 6941 39.52 779 764 156.3
B 10 16 118327 792.29 789 770 148.4
B 15 35 87651 585.55 789 770 148.4
B 0 189 72390 482.69 789 770 148.4
C 14 238 116641 662.61 752 756 174.9
C 3 233 74559 421.99 752 756 174.9
C 10 169 10618 56.39 752 756 174.9
D 10 70 128714 701.85 742 719 182.4
D 12 218 99752 543.04 742 719 182.4
D 2 122 86182 468.63 742 719 182.4

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