ASTROSAT CZTI

Data Quality Report

Orbit 29153

Creation date: 2024-06-27T20:00:52.558989
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_099T01_9000004184_29153cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29153cztM0_level2_quad_clean.evt
Size (bytes)540,668,16093,144,960
Size515.6 MB 88.8 MB
Events in quadrant A3,415,592617,794
Events in quadrant B3,598,597629,124
Events in quadrant C3,441,772587,736
Events in quadrant D5,503,422558,479

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141352
B0146712
C0141652
D0206182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61271141.860617%
B61271442.350253%
C61271582.578750%
D61274206.854905%

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 7472 6128 0 0 0.00% 0.00%
B 7472 6128 0 0 0.00% 0.00%
C 7472 6128 0 0 0.00% 0.00%
D 7472 6128 277 277 3.71% 4.52%

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 13 254 11793 62.92 884 870 173.6
A 3 137 8021 41.19 884 870 173.6
A 0 226 7557 38.52 884 870 173.6
B 0 189 79104 475.57 878 859 164.5
B 0 190 58268 348.93 878 859 164.5
B 12 111 19253 111.8 878 859 164.5
C 14 238 137196 707.64 835 845 192.7
C 3 233 26078 130.96 835 845 192.7
C 2 114 14777 72.31 835 845 192.7
D 1 52 1951621 10032.99 820 801 194.4
D 8 195 342594 1757.83 820 801 194.4
D 12 233 42137 212.59 820 801 194.4

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