ASTROSAT CZTI

Data Quality Report

Orbit 28323

Creation date: 2024-06-27T19:50:29.768072
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_116T01_9000004082_28323cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28323cztM0_level2_quad_clean.evt
Size (bytes)560,482,56092,018,880
Size534.5 MB 87.8 MB
Events in quadrant A3,059,848616,605
Events in quadrant B3,855,521616,038
Events in quadrant C3,331,279580,301
Events in quadrant D6,300,265533,061

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131980
B0156130
C0142310
D0229760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6310530.839937%
B63112353.723657%
C63111141.806370%
D631063310.031696%

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 7380 6310 0 0 0.00% 0.00%
B 7381 6311 120 120 1.63% 1.90%
C 7381 6311 5 5 0.07% 0.08%
D 7380 6311 609 609 8.25% 9.65%

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 10836 63.28 792 777 159.0
A 3 137 7834 44.4 792 777 159.0
A 0 226 6772 37.71 792 777 159.0
B 10 245 654876 4325.92 784 766 151.2
B 10 246 73232 479.25 784 766 151.2
B 12 111 18423 116.77 784 766 151.2
C 3 233 258478 1459.54 748 751 176.6
C 14 238 122375 688.77 748 751 176.6
C 2 16 38611 214.41 748 751 176.6
D 1 52 2444975 14184.22 728 708 172.3
D 8 195 857809 4973.81 728 708 172.3
D 7 238 66060 379.24 728 708 172.3

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