ASTROSAT CZTI

Data Quality Report

Orbit 31029

Creation date: 2024-06-27T20:22:29.904756
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_071T56_9000004484_31029cztM0_level2.evt modeM0/AS1A10_071T56_9000004484_31029cztM0_level2_quad_clean.evt
Size (bytes)160,894,08020,992,320
Size153.4 MB 20.0 MB
Events in quadrant A594,545159,787
Events in quadrant B968,515157,874
Events in quadrant C603,198151,043
Events in quadrant D2,627,23080,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023730
B035930
C024110
D085691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112960.531444%
B1129100.885740%
C112990.797166%
D1128104192.287234%

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 1129 1129 0 0 0.00% 0.00%
B 1129 1129 3 3 0.27% 0.27%
C 1129 1129 0 0 0.00% 0.00%
D 1127 1127 979 979 86.87% 86.87%

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 2341 66.65 153 149 32.9
A 3 137 1599 44.09 153 149 32.9
A 0 226 1351 36.55 153 149 32.9
B 6 159 292406 9546.1 148 145 30.6
B 0 155 48842 1590.59 148 145 30.6
B 0 183 12418 400.87 148 145 30.6
C 14 238 23614 652.54 144 145 36.0
C 3 233 6394 173.75 144 145 36.0
C 1 16 5135 138.74 144 145 36.0
D 12 218 2148462 88630.12 90 87 24.2
D 8 195 106642 4395.87 90 87 24.2
D 2 250 15543 637.63 90 87 24.2

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