ASTROSAT CZTI

Data Quality Report

Orbit 03523

Creation date: 2024-06-27T14:30:30.091371
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_045T01_9000000468_03523cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03523cztM0_level2_quad_clean.evt
Size (bytes)504,812,16081,374,400
Size481.4 MB 77.6 MB
Events in quadrant A3,545,658484,573
Events in quadrant B4,066,655486,171
Events in quadrant C3,436,310485,692
Events in quadrant D3,713,820469,479

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162182
B0173731
C0159491
D0170531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7733791.021596%
B77331231.590586%
C7733350.452606%
D77331041.344886%

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 8043 7733 7 7 0.09% 0.09%
B 8043 7733 46 46 0.57% 0.59%
C 8043 7734 4 4 0.05% 0.05%
D 8043 7733 68 68 0.85% 0.88%

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 0 50 169852 945.56 863 840 178.7
A 8 15 38008 207.94 863 840 178.7
A 0 226 9367 47.71 863 840 178.7
B 15 204 288611 1672.02 876 854 172.1
B 14 167 140580 811.88 876 854 172.1
B 15 85 94019 541.34 876 854 172.1
C 14 223 34376 167.94 845 846 199.7
C 15 208 28830 140.16 845 846 199.7
C 8 128 17798 84.9 845 846 199.7
D 5 233 242527 1200.34 833 808 201.4
D 2 31 149472 738.25 833 808 201.4
D 13 223 107174 528.2 833 808 201.4

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