ASTROSAT CZTI

Data Quality Report

Orbit 21410

Creation date: 2024-06-27T18:27:30.484248
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_140T01_9000003160_21410cztM0_level2.evt modeM0/AS1T03_140T01_9000003160_21410cztM0_level2_quad_clean.evt
Size (bytes)590,618,88096,658,560
Size563.3 MB 92.2 MB
Events in quadrant A3,487,529648,573
Events in quadrant B3,314,939650,492
Events in quadrant C3,231,906624,290
Events in quadrant D7,413,516551,307

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143191
B0138862
C0136421
D0265991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6481931.434964%
B64801031.589506%
C64801191.836420%
D6481108216.694954%

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 7451 6481 0 0 0.00% 0.00%
B 7450 6480 8 8 0.11% 0.12%
C 7450 6481 0 0 0.00% 0.00%
D 7451 6481 1025 1025 13.76% 15.82%

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 5 168 264167 1584.17 824 809 166.2
A 11 47 48882 289.17 824 809 166.2
A 13 254 9333 51.27 824 809 166.2
B 0 189 44572 284.14 812 794 154.1
B 0 230 33813 214.31 812 794 154.1
B 0 190 20018 124.77 812 794 154.1
C 14 238 123514 676.89 774 779 181.3
C 3 233 85599 467.79 774 779 181.3
C 0 236 5627 26.74 774 779 181.3
D 12 235 3441647 18764.46 747 725 183.4
D 7 38 411552 2240.37 747 725 183.4
D 1 52 310986 1691.95 747 725 183.4

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