ASTROSAT CZTI

Data Quality Report

Orbit 38112

Creation date: 2024-06-27T21:48:31.872976
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/AS1A11_065T21_9000005364_38112cztM0_level2.fits modeM0/AS1A11_065T21_9000005364_38112cztM0_level2_quad_clean.evt
Size (bytes)364,276,80097,130,880
Size347.4 MB 92.6 MB
Events in quadrant A3,278,818662,492
Events in quadrant B2,677,286671,039
Events in quadrant C2,986,656647,885
Events in quadrant D4,132,647591,451

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130573
B0114652
C0122012
D0158332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5258551.046025%
B5258470.893876%
C52581122.130087%
D52581532.909852%

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 7110 5259 35 35 0.49% 0.67%
B 7110 5259 25 25 0.35% 0.48%
C 7110 5259 104 104 1.46% 1.98%
D 7110 5259 117 117 1.65% 2.22%

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 10 83 359549 2850.79 623 613 125.9
A 12 16 301723 2391.51 623 613 125.9
A 12 189 129930 1027.08 623 613 125.9
B 0 229 110236 924.74 623 607 118.6
B 5 172 77822 651.32 623 607 118.6
B 0 189 22618 185.66 623 607 118.6
C 0 239 308201 2151.61 611 616 143.0
C 15 214 216008 1506.7 611 616 143.0
C 1 23 39738 273.67 611 616 143.0
D 12 235 1582302 9715.71 602 592 162.8
D 2 250 51388 312.02 602 592 162.8
D 2 234 32758 197.58 602 592 162.8

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