ASTROSAT CZTI

Data Quality Report

Orbit 28342

Creation date: 2024-06-27T19:50:42.312982
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_116T01_9000004082_28342cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28342cztM0_level2_quad_clean.evt
Size (bytes)537,503,04094,944,960
Size512.6 MB 90.5 MB
Events in quadrant A3,226,061630,676
Events in quadrant B3,581,821646,294
Events in quadrant C3,236,798618,341
Events in quadrant D5,820,050553,775

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132310
B0143520
C0131640
D0214360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6101500.819538%
B61011632.671693%
C6101711.163744%
D610170511.555483%

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 7456 6102 0 0 0.00% 0.00%
B 7456 6102 78 78 1.05% 1.28%
C 7456 6102 0 0 0.00% 0.00%
D 7456 6102 591 591 7.93% 9.69%

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 15 190 65947 401.6 818 804 162.2
A 13 254 10732 61.21 818 804 162.2
A 3 137 7537 41.51 818 804 162.2
B 10 245 328595 2171.64 816 798 150.9
B 10 246 25383 162.87 816 798 150.9
B 12 111 18339 116.21 816 798 150.9
C 14 238 131268 707.82 794 801 184.3
C 3 233 6391 30.32 794 801 184.3
C 13 61 5425 25.08 794 801 184.3
D 1 52 2614091 14720.59 748 730 177.5
D 8 195 199269 1118.33 748 730 177.5
D 7 238 88170 492.53 748 730 177.5

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