ASTROSAT CZTI

Data Quality Report

Orbit 29863

Creation date: 2024-06-27T20:08:25.426995
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/AS1T03_291T01_9000004278_29863cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29863cztM0_level2_quad_clean.evt
Size (bytes)564,050,88081,285,120
Size537.9 MB 77.5 MB
Events in quadrant A3,425,037531,546
Events in quadrant B5,370,787525,118
Events in quadrant C4,301,157486,566
Events in quadrant D3,564,369484,056

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140001
B0198791
C0175082
D0146541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62231332.137233%
B62232123.406717%
C62221963.150113%
D62221282.057216%

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 7498 6224 3 3 0.04% 0.05%
B 7498 6224 2 2 0.03% 0.03%
C 7497 6223 9 9 0.12% 0.14%
D 7497 6223 36 36 0.48% 0.58%

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 8 192 14789 80.2 883 870 173.6
A 13 254 12517 67.1 883 870 173.6
A 3 137 7951 40.8 883 870 173.6
B 6 159 1855870 11553.5 868 851 160.6
B 0 190 98944 610.95 868 851 160.6
B 12 111 18375 109.14 868 851 160.6
C 3 233 925766 4939.5 819 826 187.3
C 14 238 136346 723.72 819 826 187.3
C 10 22 30356 157.7 819 826 187.3
D 13 104 154590 796.62 830 809 193.0
D 8 195 111518 573.49 830 809 193.0
D 7 80 63590 325.22 830 809 193.0

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