ASTROSAT CZTI

Data Quality Report

Orbit 25651

Creation date: 2024-06-27T19:19:57.674658
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/AS1A09_013T02_9000003734_25651cztM0_level2.evt modeM0/AS1A09_013T02_9000003734_25651cztM0_level2_quad_clean.evt
Size (bytes)461,131,200100,215,360
Size439.8 MB 95.6 MB
Events in quadrant A3,335,291651,554
Events in quadrant B3,286,299669,312
Events in quadrant C3,339,857629,991
Events in quadrant D3,548,683616,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138800
B0138290
C0140750
D0149400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6703210.313293%
B6703330.492317%
C6703711.059227%
D6703180.268536%

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 7883 6704 0 0 0.00% 0.00%
B 7883 6704 0 0 0.00% 0.00%
C 7883 6704 0 0 0.00% 0.00%
D 7883 6704 3 3 0.04% 0.04%

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 8 192 144288 872.12 827 810 164.5
A 13 254 9657 53.77 827 810 164.5
A 3 137 7414 40.14 827 810 164.5
B 12 111 18794 116.53 830 810 154.3
B 11 111 16672 102.78 830 810 154.3
B 0 219 15992 98.37 830 810 154.3
C 14 238 131169 712.68 793 799 182.9
C 3 233 115379 626.36 793 799 182.9
C 13 61 5529 25.86 793 799 182.9
D 8 195 288626 1413.24 788 770 203.7
D 1 52 254117 1243.82 788 770 203.7
D 2 234 25981 123.77 788 770 203.7

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