ASTROSAT CZTI

Data Quality Report

Orbit 12910

Creation date: 2024-06-27T16:33:50.821775
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/AS1A04_116T01_9000001896_12910cztM0_level2.evt modeM0/AS1A04_116T01_9000001896_12910cztM0_level2_quad_clean.evt
Size (bytes)491,152,32099,912,960
Size468.4 MB 95.3 MB
Events in quadrant A3,072,817672,736
Events in quadrant B4,361,644642,355
Events in quadrant C2,917,172677,825
Events in quadrant D4,131,166629,141

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126582
B0166241
C0123371
D0159671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5772981.697852%
B577260110.412335%
C5772841.455301%
D57722824.885655%

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 7083 5775 2 2 0.03% 0.03%
B 7083 5775 297 297 4.19% 5.14%
C 7083 5775 0 0 0.00% 0.00%
D 7083 5775 166 166 2.34% 2.87%

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 12 189 29931 192.15 770 756 151.8
A 13 248 23197 147.8 770 756 151.8
A 1 162 21048 133.64 770 756 151.8
B 4 239 1239499 9365.11 732 717 132.3
B 3 64 103700 778.54 732 717 132.3
B 3 209 72567 543.18 732 717 132.3
C 13 61 5447 28.08 746 751 167.2
C 14 234 3553 16.76 746 751 167.2
C 8 222 2434 10.07 746 751 167.2
D 1 52 1212932 6948.55 735 717 174.5
D 2 14 47557 268.49 735 717 174.5
D 8 195 29844 166.96 735 717 174.5

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