ASTROSAT CZTI

Data Quality Report

Orbit 28337

Creation date: 2024-06-27T19:50:39.259447
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_28337cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28337cztM0_level2_quad_clean.evt
Size (bytes)467,611,20092,554,560
Size445.9 MB 88.3 MB
Events in quadrant A2,964,105614,839
Events in quadrant B3,310,801618,675
Events in quadrant C2,973,161580,738
Events in quadrant D4,493,064556,379

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128830
B0138430
C0128620
D0174950

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6190460.743134%
B61911312.115975%
C6191861.389113%
D61912093.375868%

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 7195 6191 0 0 0.00% 0.00%
B 7196 6192 46 46 0.64% 0.74%
C 7196 6193 1 1 0.01% 0.02%
D 7196 6192 143 143 1.99% 2.31%

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 10698 64.31 768 752 154.7
A 3 137 7654 44.63 768 752 154.7
A 0 226 6554 37.51 768 752 154.7
B 10 245 226536 1527.76 758 739 147.8
B 4 200 53959 360.09 758 739 147.8
B 0 183 25807 169.61 758 739 147.8
C 14 238 116230 677.71 723 727 170.4
C 0 10 19958 112.84 723 727 170.4
C 3 233 18211 102.59 723 727 170.4
D 1 52 1196301 6953.76 721 704 171.9
D 8 195 385777 2239.64 721 704 171.9
D 7 238 80636 464.9 721 704 171.9

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