ASTROSAT CZTI

Data Quality Report

Orbit 17613

Creation date: 2024-06-27T17:38:38.392224
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/AS1T03_027T01_9000002608_17613cztM0_level2.evt modeM0/AS1T03_027T01_9000002608_17613cztM0_level2_quad_clean.evt
Size (bytes)681,768,000110,727,360
Size650.2 MB 105.6 MB
Events in quadrant A4,553,332683,603
Events in quadrant B4,611,239693,438
Events in quadrant C6,410,234665,862
Events in quadrant D4,442,649665,181

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193042
B0194842
C0267812
D0194562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9310440.472610%
B9310550.590763%
C93101241.331901%
D9310330.354458%

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 11610 9311 0 0 0.00% 0.00%
B 11610 9311 0 0 0.00% 0.00%
C 11610 9312 0 0 0.00% 0.00%
D 11610 9312 7 7 0.06% 0.08%

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 13 21925 88.52 1173 1151 234.7
A 15 174 11673 44.84 1173 1151 234.7
A 13 210 11304 43.26 1173 1151 234.7
B 12 111 26500 114.08 1172 1142 222.3
B 11 111 23547 100.79 1172 1142 222.3
B 14 111 20194 85.71 1172 1142 222.3
C 3 233 1794225 6901.29 1120 1128 259.8
C 14 238 175662 671.75 1120 1128 259.8
C 5 218 76505 290.11 1120 1128 259.8
D 13 189 80726 290.0 1138 1109 274.5
D 2 234 31061 109.1 1138 1109 274.5
D 7 223 19459 66.84 1138 1109 274.5

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