ASTROSAT CZTI

Data Quality Report

Orbit 12088

Creation date: 2024-06-27T16:22:16.500676
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/AS1G08_065T01_9000001796_12088cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12088cztM0_level2_quad_clean.evt
Size (bytes)527,261,760103,930,560
Size502.8 MB 99.1 MB
Events in quadrant A3,649,784681,396
Events in quadrant B4,179,147675,817
Events in quadrant C3,131,258679,272
Events in quadrant D4,553,538644,155

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153563
B0168472
C0138652
D0180742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67052103.131991%
B67053485.190157%
C6705811.208054%
D67052243.340790%

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 8836 6707 36 36 0.41% 0.54%
B 8836 6707 103 103 1.17% 1.54%
C 8836 6708 0 0 0.00% 0.00%
D 8836 6708 113 113 1.28% 1.68%

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 181134 1098.02 810 794 164.2
A 13 251 139697 845.73 810 794 164.2
A 1 178 63547 382.08 810 794 164.2
B 4 239 848022 5612.9 806 786 150.9
B 15 204 141857 934.59 806 786 150.9
B 12 111 16820 106.22 806 786 150.9
C 8 208 6627 31.56 800 802 184.6
C 13 61 5866 27.44 800 802 184.6
C 12 4 3282 13.44 800 802 184.6
D 1 52 442336 2354.24 788 767 187.6
D 8 195 352311 1874.27 788 767 187.6
D 14 34 267151 1420.23 788 767 187.6

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