ASTROSAT CZTI

Data Quality Report

Orbit 05700

Creation date: 2024-06-27T14:58:07.287856
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/AS1A02_098T01_9000000736_05700cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05700cztM0_level2_quad_clean.evt
Size (bytes)449,176,32065,865,600
Size428.4 MB 62.8 MB
Events in quadrant A3,118,470385,965
Events in quadrant B3,513,434389,271
Events in quadrant C3,184,742392,491
Events in quadrant D3,346,816375,072

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134583
B0144352
C0137682
D0141562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64751121.729730%
B64751271.961390%
C6475951.467181%
D64751231.899614%

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 7595 6475 2 2 0.03% 0.03%
B 7595 6475 2 2 0.03% 0.03%
C 7595 6475 1 1 0.01% 0.02%
D 7595 6476 22 22 0.29% 0.34%

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 0 50 13603 78.22 805 788 163.8
A 0 226 8109 44.68 805 788 163.8
A 12 194 7751 42.5 805 788 163.8
B 15 204 248179 1614.94 810 794 153.2
B 0 214 36073 230.3 810 794 153.2
B 11 51 28934 183.7 810 794 153.2
C 1 241 98202 539.9 783 785 180.4
C 1 16 16988 89.8 783 785 180.4
C 14 67 10172 52.02 783 785 180.4
D 2 14 109705 569.49 782 756 191.3
D 8 195 82982 429.81 782 756 191.3
D 2 152 75748 392.0 782 756 191.3

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