ASTROSAT CZTI

Data Quality Report

Orbit 10398

Creation date: 2024-06-27T15:59:06.465669
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/AS1G07_068T01_9000001502_10398cztM0_level2.evt modeM0/AS1G07_068T01_9000001502_10398cztM0_level2_quad_clean.evt
Size (bytes)158,915,52012,438,720
Size151.6 MB 11.9 MB
Events in quadrant A1,011,32856,033
Events in quadrant B1,089,56455,331
Events in quadrant C993,54560,031
Events in quadrant D1,570,83050,755

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116477161
B0128348238
C0122267696
D01754411430

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C042
D042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011668
B011670
C011668
D011062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2146713.308481%
B2102914.329210%
C2157502.318034%
D2082793.794428%

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 2986 2541 0 0 0.00% 0.00%
B 2986 2514 0 0 0.00% 0.00%
C 2987 2564 0 0 0.00% 0.00%
D 2982 2456 6 6 0.20% 0.24%

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 1 162 3284 54.52 259 252 55.6
A 8 15 2999 49.4 259 252 55.6
A 14 254 2873 47.13 259 252 55.6
B 4 239 34254 664.8 254 248 51.2
B 11 51 18296 352.83 254 248 51.2
B 0 214 13917 267.22 254 248 51.2
C 14 234 8435 136.06 250 251 60.1
C 8 128 3674 56.91 250 251 60.1
C 8 112 2235 32.98 250 251 60.1
D 8 195 197995 3265.64 244 236 60.6
D 1 20 191842 3164.04 244 236 60.6
D 1 52 156743 2584.44 244 236 60.6

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