ASTROSAT CZTI

Data Quality Report

Orbit 29714

Creation date: 2024-06-27T20:07:04.602690
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_007T01_9000004276_29714cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29714cztM0_level2_quad_clean.evt
Size (bytes)598,996,80063,650,880
Size571.2 MB 60.7 MB
Events in quadrant A3,291,472375,272
Events in quadrant B5,476,307374,589
Events in quadrant C4,616,737364,315
Events in quadrant D4,315,726358,506

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139532
B0206041
C0183051
D0170951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6516480.736648%
B65161492.286679%
C65161632.501535%
D6517931.427037%

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 7626 6516 0 0 0.00% 0.00%
B 7626 6516 21 21 0.28% 0.32%
C 7626 6516 22 22 0.29% 0.34%
D 7627 6517 37 37 0.49% 0.57%

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 13015 71.55 853 837 170.2
A 3 137 8119 42.78 853 837 170.2
A 0 226 7191 37.33 853 837 170.2
B 6 159 1882780 11875.9 838 818 158.5
B 0 229 245734 1545.51 838 818 158.5
B 0 190 27002 165.23 838 818 158.5
C 3 233 1236082 6552.4 813 818 188.5
C 14 238 132099 696.37 813 818 188.5
C 10 22 61573 322.27 813 818 188.5
D 8 195 490280 2521.25 825 809 194.1
D 7 80 418754 2152.82 825 809 194.1
D 7 238 109787 561.34 825 809 194.1

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