ASTROSAT CZTI

Data Quality Report

Orbit 10338

Creation date: 2024-06-27T15:58:06.727889
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/AS1C02_038T02_9000001490_10338cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10338cztM0_level2_quad_clean.evt
Size (bytes)537,768,00079,807,680
Size512.9 MB 76.1 MB
Events in quadrant A4,195,057474,818
Events in quadrant B3,960,201480,110
Events in quadrant C3,456,856477,862
Events in quadrant D4,162,004458,746

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172563
B0167552
C0155892
D0174232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75491582.092992%
B75492303.046761%
C7549660.874288%
D75491852.450656%

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 7909 7549 1 1 0.01% 0.01%
B 7909 7549 37 37 0.47% 0.49%
C 7909 7550 0 0 0.00% 0.00%
D 7909 7550 64 64 0.81% 0.85%

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 15 584160 3182.39 904 882 183.3
A 13 251 102825 556.2 904 882 183.3
A 3 1 10198 50.83 904 882 183.3
B 4 239 227175 1318.82 901 879 171.6
B 11 51 100334 579.61 901 879 171.6
B 0 219 67091 385.87 901 879 171.6
C 14 234 7760 33.52 884 886 205.1
C 13 61 6581 27.77 884 886 205.1
C 8 222 2465 7.7 884 886 205.1
D 2 33 267827 1262.84 879 854 211.4
D 8 195 258827 1220.27 879 854 211.4
D 2 14 124470 584.73 879 854 211.4

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