ASTROSAT CZTI

Data Quality Report

Orbit 30109

Creation date: 2024-06-27T20:11:00.529476
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/AS1C05_019T01_9000004332_30109cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30109cztM0_level2_quad_clean.evt
Size (bytes)524,148,480128,845,440
Size499.9 MB 122.9 MB
Events in quadrant A3,029,242900,039
Events in quadrant B4,772,565896,909
Events in quadrant C3,072,928847,624
Events in quadrant D4,578,779824,959

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126941
B0186241
C0129261
D0174201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6191631.017606%
B61921262.034884%
C61921302.099483%
D61924286.912145%

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 7416 6192 1 1 0.01% 0.02%
B 7417 6193 1 1 0.01% 0.02%
C 7417 6193 23 23 0.31% 0.37%
D 7417 6193 330 330 4.45% 5.33%

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 14 238 16190 100.47 779 763 153.5
A 13 254 10667 64.5 779 763 153.5
A 8 192 9260 55.34 779 763 153.5
B 6 159 1733346 12094.97 768 750 143.2
B 0 190 29982 204.06 768 750 143.2
B 12 111 17174 114.65 768 750 143.2
C 14 238 130123 767.36 729 732 168.6
C 10 20 66978 392.88 729 732 168.6
C 2 114 13809 77.55 729 732 168.6
D 1 52 820139 4836.85 727 711 169.4
D 13 104 605673 3570.92 727 711 169.4
D 8 195 233046 1371.41 727 711 169.4

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