ASTROSAT CZTI

Data Quality Report

Orbit 07601

Creation date: 2024-06-27T15:21:40.720494
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/AS1G06_117T01_9000001046_07601cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07601cztM0_level2_quad_clean.evt
Size (bytes)546,269,76088,168,320
Size521.0 MB 84.1 MB
Events in quadrant A3,068,384559,274
Events in quadrant B3,151,424566,899
Events in quadrant C5,959,679545,901
Events in quadrant D3,915,488535,881

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135392
B0136721
C0225491
D0161401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6628851.282438%
B6628981.478576%
C66282784.194327%
D66281732.610139%

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 7538 6630 0 0 0.00% 0.00%
B 7538 6629 0 0 0.00% 0.00%
C 7538 6630 103 103 1.37% 1.55%
D 7538 6630 85 85 1.13% 1.28%

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 12 194 7400 40.65 796 779 162.9
A 0 226 7338 40.27 796 779 162.9
A 3 1 4894 25.26 796 779 162.9
B 0 214 16807 104.6 801 781 153.2
B 12 111 16100 99.98 801 781 153.2
B 4 173 13588 83.59 801 781 153.2
C 9 68 2681143 15076.13 769 772 177.8
C 4 254 188832 1057.77 769 772 177.8
C 7 87 70030 389.55 769 772 177.8
D 5 233 444541 2340.45 775 752 189.6
D 1 52 146130 766.69 775 752 189.6
D 2 152 144651 758.89 775 752 189.6

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