ASTROSAT CZTI

Data Quality Report

Orbit 30033

Creation date: 2024-06-27T20:10:07.213341
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_071T04_9000004316_30033cztM0_level2.evt modeM0/AS1A10_071T04_9000004316_30033cztM0_level2_quad_clean.evt
Size (bytes)508,380,48083,272,320
Size484.8 MB 79.4 MB
Events in quadrant A3,204,468532,958
Events in quadrant B4,999,074536,217
Events in quadrant C3,558,811506,309
Events in quadrant D3,198,289497,865

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133682
B0194052
C0145042
D0136232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6427330.513459%
B6427410.637934%
C6427961.493698%
D6427150.233390%

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 7592 6428 8 8 0.11% 0.12%
B 7592 6428 1 1 0.01% 0.02%
C 7592 6428 1 1 0.01% 0.02%
D 7592 6428 8 8 0.11% 0.12%

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 32665 195.98 821 807 162.6
A 13 254 12217 70.19 821 807 162.6
A 3 137 7998 44.24 821 807 162.6
B 6 159 1785794 11405.64 815 796 156.5
B 12 111 19358 118.61 815 796 156.5
B 11 111 17905 109.32 815 796 156.5
C 3 233 315540 1736.27 778 785 181.3
C 14 238 144676 793.74 778 785 181.3
C 15 208 28953 155.38 778 785 181.3
D 8 195 133687 723.75 780 764 183.7
D 7 80 56555 303.77 780 764 183.7
D 2 234 21361 112.15 780 764 183.7

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