ASTROSAT CZTI

Data Quality Report

Orbit 30044

Creation date: 2024-06-27T20:10:12.040705
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_071T09_9000004320_30044cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30044cztM0_level2_quad_clean.evt
Size (bytes)739,350,720113,299,200
Size705.1 MB 108.1 MB
Events in quadrant A4,668,166701,881
Events in quadrant B7,551,293701,119
Events in quadrant C4,776,254672,960
Events in quadrant D4,728,524672,090

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02020
B02020
C02020
D02020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203182
B0297322
C0204902
D0206562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9852830.842469%
B98521451.471782%
C98521621.644336%
D9852550.558262%

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 11292 9854 2 2 0.02% 0.02%
B 11292 9854 1 1 0.01% 0.01%
C 11292 9854 1 1 0.01% 0.01%
D 11292 9854 11 11 0.10% 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 8 192 27506 109.04 1202 1177 241.5
A 13 254 18470 71.62 1202 1177 241.5
A 3 137 12552 47.11 1202 1177 241.5
B 6 159 2834582 12378.72 1184 1153 228.9
B 12 111 29380 123.32 1184 1153 228.9
B 11 111 27203 113.81 1184 1153 228.9
C 14 238 207374 761.74 1147 1154 270.7
C 14 254 34629 123.65 1147 1154 270.7
C 2 114 22721 79.66 1147 1154 270.7
D 8 195 224529 808.13 1158 1131 276.4
D 2 250 93824 335.31 1158 1131 276.4
D 2 234 38712 135.95 1158 1131 276.4

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