ASTROSAT CZTI

Data Quality Report

Orbit 28312

Creation date: 2024-06-27T19:50:21.653763
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_102T10_9000004080_28312cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28312cztM0_level2_quad_clean.evt
Size (bytes)575,403,840121,417,920
Size548.7 MB 115.8 MB
Events in quadrant A3,208,956826,326
Events in quadrant B3,979,073850,407
Events in quadrant C3,348,031824,110
Events in quadrant D6,470,798744,033

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135120
B0160460
C0139440
D0235830

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6201440.709563%
B62011602.580229%
C62011011.628770%
D620173711.885180%

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 7536 6202 3 3 0.04% 0.05%
B 7536 6202 60 60 0.80% 0.97%
C 7536 6201 0 0 0.00% 0.00%
D 7536 6202 593 593 7.87% 9.56%

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 1 113 12859 74.12 826 811 162.5
A 8 192 11809 67.66 826 811 162.5
A 13 254 11008 62.73 826 811 162.5
B 10 245 607450 3983.7 832 813 152.3
B 10 246 81771 531.64 832 813 152.3
B 4 200 18682 117.34 832 813 152.3
C 14 238 135361 717.59 818 826 187.5
C 3 233 19825 101.34 818 826 187.5
C 13 61 5673 25.85 818 826 187.5
D 1 52 1821077 10067.24 774 757 180.8
D 7 238 888223 4908.11 774 757 180.8
D 8 195 526027 2905.0 774 757 180.8

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