ASTROSAT CZTI

Data Quality Report

Orbit 06221

Creation date: 2024-06-27T15:04:20.588552
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/AS1A02_046T01_9000000814_06221cztM0_level2.evt modeM0/AS1A02_046T01_9000000814_06221cztM0_level2_quad_clean.evt
Size (bytes)59,558,40015,177,600
Size56.8 MB 14.5 MB
Events in quadrant A458,58498,953
Events in quadrant B440,503102,296
Events in quadrant C406,04595,766
Events in quadrant D434,57092,420

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018889
B018252
C018004
D018678

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0182
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89410.111857%
B89700.000000%
C89600.000000%
D89430.335570%

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 898 898 0 0 0.00% 0.00%
B 898 898 0 0 0.00% 0.00%
C 898 898 0 0 0.00% 0.00%
D 898 898 1 1 0.11% 0.11%

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 15 25862 1042.95 111 109 24.7
A 12 194 1132 41.43 111 109 24.7
A 0 226 1069 38.88 111 109 24.7
B 4 81 4455 183.72 110 108 23.7
B 0 219 4176 171.93 110 108 23.7
B 15 204 3377 138.16 110 108 23.7
C 1 16 875 30.44 103 103 25.4
C 13 61 820 28.27 103 103 25.4
C 8 222 316 8.4 103 103 25.4
D 2 63 21204 766.98 105 101 27.5
D 2 206 7895 283.27 105 101 27.5
D 5 97 5346 190.63 105 101 27.5

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