ASTROSAT CZTI

Data Quality Report

Orbit 09884

Creation date: 2024-06-27T15:51:50.627408
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/AS1A03_117T06_9000001404_09884cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09884cztM0_level2_quad_clean.evt
Size (bytes)444,925,44089,919,360
Size424.3 MB 85.8 MB
Events in quadrant A3,289,995565,181
Events in quadrant B3,258,376593,534
Events in quadrant C3,232,673570,455
Events in quadrant D3,247,813537,003

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014257280
B014138246
C014251263
D014329244

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01366
B01362
C01360
D01362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6545600.916730%
B6557791.204819%
C6554640.976503%
D6561881.341259%

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 9128 6658 0 0 0.00% 0.00%
B 9127 6665 0 0 0.00% 0.00%
C 9128 6661 7 7 0.08% 0.11%
D 9128 6667 36 36 0.39% 0.54%

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 13 251 113614 682.95 825 808 165.2
A 0 226 7367 39.71 825 808 165.2
A 12 194 6653 35.39 825 808 165.2
B 12 111 18444 111.09 836 816 158.7
B 11 111 15474 92.37 836 816 158.7
B 14 111 13147 77.71 836 816 158.7
C 14 234 48025 252.04 813 817 187.3
C 4 254 12469 62.21 813 817 187.3
C 13 61 5990 27.62 813 817 187.3
D 1 52 133742 646.54 798 782 205.6
D 8 195 32396 153.73 798 782 205.6
D 2 234 29478 139.54 798 782 205.6

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