ASTROSAT CZTI

Data Quality Report

Orbit 14199

Creation date: 2024-06-27T16:51:46.089377
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/AS1C03_022T01_9000002098_14199cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14199cztM0_level2_quad_clean.evt
Size (bytes)450,348,48079,888,320
Size429.5 MB 76.2 MB
Events in quadrant A3,081,784517,597
Events in quadrant B3,975,671515,678
Events in quadrant C3,067,715495,781
Events in quadrant D3,126,055491,104

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123662
B0152131
C0122081
D0126171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5708520.911002%
B57083676.429573%
C5708651.138753%
D5708390.683252%

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 7019 5711 0 0 0.00% 0.00%
B 7019 5711 203 203 2.89% 3.55%
C 7019 5711 24 24 0.34% 0.42%
D 7019 5711 4 4 0.06% 0.07%

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 114851 744.89 757 744 153.2
A 12 189 37798 241.89 757 744 153.2
A 12 96 13837 85.47 757 744 153.2
B 0 182 864235 6235.16 729 714 138.5
B 4 97 78432 561.17 729 714 138.5
B 0 189 40771 289.24 729 714 138.5
C 3 233 217034 1319.79 711 717 163.9
C 0 207 79369 479.87 711 717 163.9
C 13 61 5103 26.76 711 717 163.9
D 8 195 233140 1325.41 725 708 175.4
D 5 222 43517 244.11 725 708 175.4
D 2 152 36684 205.15 725 708 175.4

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