ASTROSAT CZTI

Data Quality Report

Orbit 12583

Creation date: 2024-06-27T16:29:33.469328
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_130T04_9000001872_12583cztM0_level2.evt modeM0/AS1A04_130T04_9000001872_12583cztM0_level2_quad_clean.evt
Size (bytes)498,214,08093,778,560
Size475.1 MB 89.4 MB
Events in quadrant A3,363,548583,095
Events in quadrant B3,989,513595,235
Events in quadrant C3,307,027591,379
Events in quadrant D3,934,757564,229

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150152
B0165841
C0150151
D0168551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72652593.565038%
B72653484.790089%
C72651912.629043%
D72652853.922918%

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 7281 7267 0 0 0.00% 0.00%
B 7281 7266 53 53 0.73% 0.73%
C 7281 7267 0 0 0.00% 0.00%
D 7281 7267 55 55 0.76% 0.76%

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 12 189 27589 150.98 861 838 177.2
A 12 96 12493 65.78 861 838 177.2
A 0 226 7577 38.04 861 838 177.2
B 4 239 277196 1652.05 857 836 167.3
B 3 64 227185 1353.09 857 836 167.3
B 11 51 89627 530.78 857 836 167.3
C 15 208 25673 127.22 838 838 195.2
C 13 61 6221 27.57 838 838 195.2
C 12 4 4129 16.86 838 838 195.2
D 10 157 487237 2386.45 835 808 203.8
D 1 52 196973 962.4 835 808 203.8
D 13 249 49966 241.17 835 808 203.8

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