ASTROSAT CZTI

Data Quality Report

Orbit 21043

Creation date: 2024-06-27T18:22:50.448909
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/AS1A05_088T02_9000003106_21043cztM0_level2.evt modeM0/AS1A05_088T02_9000003106_21043cztM0_level2_quad_clean.evt
Size (bytes)473,227,20090,887,040
Size451.3 MB 86.7 MB
Events in quadrant A3,199,284594,094
Events in quadrant B3,258,676597,263
Events in quadrant C3,102,311569,423
Events in quadrant D4,331,386539,651

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138212
B0139942
C0133722
D0173842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482590.910213%
B6482841.295896%
C6482671.033632%
D64823916.032089%

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 7492 6483 11 11 0.15% 0.17%
B 7492 6483 17 17 0.23% 0.26%
C 7492 6483 0 0 0.00% 0.00%
D 7492 6483 308 308 4.11% 4.75%

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 6 16 147046 924.73 790 773 158.2
A 13 254 8902 51.39 790 773 158.2
A 0 226 6717 37.58 790 773 158.2
B 7 220 54635 361.44 787 768 149.0
B 0 190 32719 214.39 787 768 149.0
B 0 228 23742 154.15 787 768 149.0
C 14 238 117016 648.78 760 764 179.2
C 10 91 15753 83.65 760 764 179.2
C 9 54 5674 27.4 760 764 179.2
D 1 52 1164771 6353.33 755 733 183.2
D 9 1 194477 1057.46 755 733 183.2
D 1 239 47978 257.86 755 733 183.2

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