ASTROSAT CZTI

Data Quality Report

Orbit 19933

Creation date: 2024-06-27T18:08:55.830971
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/AS1A05_160T01_9000002970_19933cztM0_level2.evt modeM0/AS1A05_160T01_9000002970_19933cztM0_level2_quad_clean.evt
Size (bytes)518,699,52090,783,360
Size494.7 MB 86.6 MB
Events in quadrant A3,305,277587,572
Events in quadrant B3,482,333592,386
Events in quadrant C3,906,383563,371
Events in quadrant D4,579,394557,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138092
B0144732
C0157462
D0179072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64171171.823282%
B64171512.353125%
C64172453.817983%
D64172563.989403%

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 8862 6418 0 0 0.00% 0.00%
B 8862 6417 8 8 0.09% 0.12%
C 8862 6417 28 28 0.32% 0.44%
D 8862 6417 146 146 1.65% 2.28%

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 3 1 11819 63.61 856 838 172.6
A 0 226 7436 38.22 856 838 172.6
A 3 137 6425 32.37 856 838 172.6
B 0 197 51982 310.33 853 830 164.8
B 7 220 42582 253.3 853 830 164.8
B 0 189 27555 162.14 853 830 164.8
C 3 233 313497 1623.7 822 829 192.6
C 4 254 151741 783.7 822 829 192.6
C 14 238 128254 661.73 822 829 192.6
D 1 52 1027415 5094.28 832 811 201.5
D 7 38 322826 1597.92 832 811 201.5
D 7 238 43771 213.18 832 811 201.5

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