ASTROSAT CZTI

Data Quality Report

Orbit 08209

Creation date: 2024-06-27T15:29:31.021977
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_103T01_9000001132_08209cztM0_level2.evt modeM0/AS1A03_103T01_9000001132_08209cztM0_level2_quad_clean.evt
Size (bytes)139,671,36038,177,280
Size133.2 MB 36.4 MB
Events in quadrant A1,246,907249,149
Events in quadrant B955,774259,610
Events in quadrant C867,048253,825
Events in quadrant D1,017,279243,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051361
B042621
C041801
D045031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2061733.541970%
B2061100.485201%
C206140.194081%
D2062160.775946%

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 2061 2061 61 61 2.96% 2.96%
B 2061 2061 1 1 0.05% 0.05%
C 2061 2061 0 0 0.00% 0.00%
D 2062 2062 12 12 0.58% 0.58%

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 4 2 345790 7013.05 234 228 49.3
A 0 226 2362 43.31 234 228 49.3
A 12 194 2176 39.53 234 228 49.3
B 0 245 11847 249.51 238 233 46.5
B 15 204 7944 165.66 238 233 46.5
B 0 219 4337 88.17 238 233 46.5
C 13 61 1794 29.85 221 222 52.7
C 14 67 1393 22.23 221 222 52.7
C 7 159 722 9.49 221 222 52.7
D 2 152 55163 989.05 223 216 55.6
D 13 105 48503 869.17 223 216 55.6
D 2 136 19152 340.85 223 216 55.6

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