ASTROSAT CZTI

Data Quality Report

Orbit 14183

Creation date: 2024-06-27T16:51:21.917587
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/AS1A04_229T01_9000002096_14183cztM0_level2.evt modeM0/AS1A04_229T01_9000002096_14183cztM0_level2_quad_clean.evt
Size (bytes)479,255,04076,023,360
Size457.1 MB 72.5 MB
Events in quadrant A3,251,522474,449
Events in quadrant B3,534,032492,392
Events in quadrant C3,276,899456,674
Events in quadrant D4,022,740437,211

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134742
B0142761
C0134381
D0166101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325320.505929%
B6325440.695652%
C6325210.332016%
D6325470.743083%

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 7576 6327 0 0 0.00% 0.00%
B 7576 6327 1 1 0.01% 0.02%
C 7576 6327 0 0 0.00% 0.00%
D 7576 6327 17 17 0.22% 0.27%

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 0 226 7312 38.22 841 827 169.7
A 12 189 6978 36.25 841 827 169.7
A 12 194 6335 32.46 841 827 169.7
B 10 244 92792 589.29 833 815 156.1
B 0 219 91292 579.68 833 815 156.1
B 3 209 30746 191.76 833 815 156.1
C 3 233 121068 654.68 804 811 183.7
C 10 22 16531 85.58 804 811 183.7
C 0 207 6419 30.53 804 811 183.7
D 8 195 532014 2810.89 805 786 189.0
D 1 52 124352 653.82 805 786 189.0
D 2 152 111300 584.76 805 786 189.0

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