ASTROSAT CZTI

Data Quality Report

Orbit 25379

Creation date: 2024-06-27T19:17:00.538073
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/AS1A09_104T01_9000003710_25379cztM0_level2.evt modeM0/AS1A09_104T01_9000003710_25379cztM0_level2_quad_clean.evt
Size (bytes)567,786,240100,912,320
Size541.5 MB 96.2 MB
Events in quadrant A4,075,781635,991
Events in quadrant B4,069,982637,511
Events in quadrant C4,032,405605,534
Events in quadrant D4,456,893603,484

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173130
B0172830
C0172010
D0185800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82571301.574422%
B82581942.349237%
C82582382.882054%
D82581441.743764%

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 8852 8259 0 0 0.00% 0.00%
B 8853 8259 0 0 0.00% 0.00%
C 8853 8260 0 0 0.00% 0.00%
D 8853 8260 19 19 0.21% 0.23%

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 6 16 47788 224.16 1042 1020 208.6
A 13 254 14323 63.76 1042 1020 208.6
A 3 137 9966 42.88 1042 1020 208.6
B 12 111 24411 120.01 1029 1002 195.1
B 11 111 22422 109.82 1029 1002 195.1
B 0 229 19852 96.64 1029 1002 195.1
C 14 238 159306 684.47 989 993 231.3
C 0 207 8924 34.29 989 993 231.3
C 13 61 6794 25.08 989 993 231.3
D 8 195 185141 753.2 1010 979 244.5
D 7 238 182972 744.33 1010 979 244.5
D 7 96 88121 356.4 1010 979 244.5

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