ASTROSAT CZTI

Data Quality Report

Orbit 29493

Creation date: 2024-06-27T20:04:40.810774
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_064T03_9000004246_29493cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29493cztM0_level2_quad_clean.evt
Size (bytes)609,140,16071,009,280
Size580.9 MB 67.7 MB
Events in quadrant A2,279,299492,627
Events in quadrant B2,332,024498,250
Events in quadrant C2,636,835469,308
Events in quadrant D10,860,566338,186

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101480
B0101950
C0111560
D0356820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4998470.940376%
B4999531.060212%
C49991372.740548%
D4999352470.494099%

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 4998 4998 0 0 0.00% 0.00%
B 4999 4999 0 0 0.00% 0.00%
C 4999 4999 3 3 0.06% 0.06%
D 4999 4999 3293 3293 65.87% 65.87%

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 9526 74.05 589 576 120.9
A 3 137 5635 41.86 589 576 120.9
A 0 226 4966 36.32 589 576 120.9
B 12 111 13753 116.33 584 568 113.3
B 11 111 12154 102.23 584 568 113.3
B 0 190 11192 93.74 584 568 113.3
C 3 233 203353 1531.36 562 565 132.4
C 14 238 116657 876.67 562 565 132.4
C 7 247 78981 592.16 562 565 132.4
D 8 195 4774091 44583.88 440 427 107.1
D 12 33 2118795 19784.61 440 427 107.1
D 1 52 1232443 11506.48 440 427 107.1

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