ASTROSAT CZTI

Data Quality Report

Orbit 13224

Creation date: 2024-06-27T16:38:03.100969
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/AS1A04_216T01_9000001968_13224cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13224cztM0_level2_quad_clean.evt
Size (bytes)1,615,855,680290,802,240
Size1.5 GB 277.3 MB
Events in quadrant A9,550,0001,931,378
Events in quadrant B16,751,6261,732,161
Events in quadrant C8,772,7651,947,555
Events in quadrant D12,533,7201,840,908

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0432081095
B0641441337
C0414491160
D0521891378

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04137
B041511
C04137
D041610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A196594692.385676%
B19651348717.744644%
C196542661.353414%
D196494092.081531%

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 23502 19698 109 109 0.46% 0.55%
B 23500 19687 2063 2063 8.78% 10.48%
C 23501 19689 3 3 0.01% 0.02%
D 23502 19686 92 92 0.39% 0.47%

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 15 69 482057 1038.9 2265 2214 461.9
A 10 229 231101 495.56 2265 2214 461.9
A 1 162 43758 89.95 2265 2214 461.9
B 4 239 8076011 20377.51 2081 2027 396.2
B 5 32 286247 717.33 2081 2027 396.2
B 3 209 70601 173.07 2081 2027 396.2
C 15 208 89539 170.95 2220 2225 510.7
C 13 61 15916 26.81 2220 2225 510.7
C 8 128 15574 26.14 2220 2225 510.7
D 8 195 3511266 6700.7 2187 2124 523.7
D 1 52 553478 1052.81 2187 2124 523.7
D 2 234 75272 139.68 2187 2124 523.7

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