ASTROSAT CZTI

Data Quality Report

Orbit 32220

Creation date: 2024-06-27T20:37:44.103149
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/AS1A10_057T01_9000004692_32220cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32220cztM0_level2_quad_clean.evt
Size (bytes)623,358,72093,712,320
Size594.5 MB 89.4 MB
Events in quadrant A3,273,653612,079
Events in quadrant B5,573,550614,807
Events in quadrant C3,963,666590,341
Events in quadrant D5,646,602586,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138192
B0211191
C0158301
D0210471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6228570.915222%
B62282473.965960%
C6228106217.052023%
D62282493.998073%

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 7483 6229 0 0 0.00% 0.00%
B 7483 6229 58 58 0.78% 0.93%
C 7483 6229 10 10 0.13% 0.16%
D 7483 6229 61 61 0.82% 0.98%

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 13 254 12423 69.61 843 829 166.5
A 12 189 11860 66.23 843 829 166.5
A 13 6 7958 42.8 843 829 166.5
B 6 159 1852732 11856.24 836 817 156.2
B 5 172 235144 1500.2 836 817 156.2
B 0 229 93238 591.69 836 817 156.2
C 14 238 408695 2272.8 776 782 179.5
C 14 254 390214 2169.83 776 782 179.5
C 0 10 49661 272.34 776 782 179.5
D 8 195 2251165 11535.93 823 803 195.1
D 12 218 114717 583.95 823 803 195.1
D 13 249 61221 309.72 823 803 195.1

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