ASTROSAT CZTI

Data Quality Report

Orbit 33286

Creation date: 2024-06-27T20:47:04.493956
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/AS1T04_072T01_9000004780_33286cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33286cztM0_level2_quad_clean.evt
Size (bytes)785,151,36086,716,800
Size748.8 MB 82.7 MB
Events in quadrant A3,606,110538,346
Events in quadrant B5,458,929515,836
Events in quadrant C4,833,700515,143
Events in quadrant D9,330,696491,002

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164143
B0216822
C0193412
D0334772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A812880.098425%
B81284605.659449%
C81281922.362205%
D81287529.251969%

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 9471 8129 1 1 0.01% 0.01%
B 9471 8129 303 303 3.20% 3.73%
C 9471 8129 158 158 1.67% 1.94%
D 9471 8129 646 646 6.82% 7.95%

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 13930 69.64 923 900 187.1
A 10 248 10668 52.2 923 900 187.1
A 3 137 9030 43.45 923 900 187.1
B 5 172 919949 5346.43 901 878 171.9
B 0 219 837239 4865.29 901 878 171.9
B 4 170 38534 219.05 901 878 171.9
C 1 23 672316 3258.45 892 898 206.1
C 15 214 342747 1659.02 892 898 206.1
C 0 10 169505 818.27 892 898 206.1
D 8 195 3623077 15825.94 861 842 228.9
D 12 6 900390 3930.22 861 842 228.9
D 14 52 455022 1984.36 861 842 228.9

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