ASTROSAT CZTI

Data Quality Report

Orbit 28395

Creation date: 2024-06-27T19:51:18.837744
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/AS1A10_058T13_9000004088_28395cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28395cztM0_level2_quad_clean.evt
Size (bytes)133,902,72028,920,960
Size127.7 MB 27.6 MB
Events in quadrant A750,144202,898
Events in quadrant B779,109207,481
Events in quadrant C728,534193,844
Events in quadrant D1,704,595171,518

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030670
B031550
C030080
D059890

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133260.450450%
B1332100.750751%
C1332161.201201%
D133226219.669670%

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 1332 1332 0 0 0.00% 0.00%
B 1332 1332 1 1 0.08% 0.08%
C 1332 1332 0 0 0.00% 0.00%
D 1332 1332 165 165 12.39% 12.39%

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 3148 72.84 193 189 40.6
A 8 192 2798 64.22 193 189 40.6
A 13 254 2208 49.7 193 189 40.6
B 10 245 24557 629.77 188 183 38.7
B 0 230 10807 274.5 188 183 38.7
B 12 111 4331 107.18 188 183 38.7
C 14 238 29277 674.58 177 177 43.1
C 10 5 6641 149.85 177 177 43.1
C 7 220 1636 33.82 177 177 43.1
D 1 52 756044 18250.94 169 165 41.4
D 8 195 294173 7098.92 169 165 41.4
D 2 234 4570 106.36 169 165 41.4

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