ASTROSAT CZTI

Data Quality Report

Orbit 09032

Creation date: 2024-06-27T15:40:17.986599
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/AS1G07_029T02_9000001256_09032cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09032cztM0_level2_quad_clean.evt
Size (bytes)565,133,76080,556,480
Size539.0 MB 76.8 MB
Events in quadrant A4,138,344511,056
Events in quadrant B3,505,331519,514
Events in quadrant C3,119,529503,303
Events in quadrant D5,923,531464,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165673
B0142012
C0132542
D0217732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63181612.548275%
B63181482.342513%
C6318821.297879%
D631881012.820513%

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 7563 6318 0 0 0.00% 0.00%
B 7563 6318 11 11 0.15% 0.17%
C 7563 6318 4 4 0.05% 0.06%
D 7563 6318 645 645 8.53% 10.21%

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 8 5 802948 4842.04 827 810 165.7
A 1 162 75458 450.6 827 810 165.7
A 1 178 22781 132.62 827 810 165.7
B 4 48 191525 1224.9 823 804 155.7
B 10 16 35886 225.31 823 804 155.7
B 0 229 27774 173.21 823 804 155.7
C 8 222 34508 184.75 791 795 182.5
C 13 61 6006 28.56 791 795 182.5
C 3 202 1993 6.57 791 795 182.5
D 1 52 2360974 12843.69 760 743 183.8
D 6 225 582631 3166.46 760 743 183.8
D 13 122 38759 206.87 760 743 183.8

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