ASTROSAT CZTI

Data Quality Report

Orbit 30705

Creation date: 2024-06-27T20:18:41.035943
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_058T14_9000004430_30705cztM0_level2.evt modeM0/AS1A10_058T14_9000004430_30705cztM0_level2_quad_clean.evt
Size (bytes)746,573,760104,656,320
Size712.0 MB 99.8 MB
Events in quadrant A3,852,838688,707
Events in quadrant B6,070,240682,005
Events in quadrant C4,089,829658,835
Events in quadrant D8,099,518626,282

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159322
B0231622
C0167362
D0293072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73832673.616416%
B73833815.160504%
C73833895.268861%
D73835006.772315%

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 8678 7383 14 14 0.16% 0.19%
B 8678 7383 26 26 0.30% 0.35%
C 8678 7383 41 41 0.47% 0.56%
D 8678 7383 298 298 3.43% 4.04%

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 0 13 135619 703.17 960 940 191.5
A 13 254 14394 70.24 960 940 191.5
A 8 192 11693 56.14 960 940 191.5
B 6 159 2008257 11068.83 939 912 181.4
B 0 230 139349 763.36 939 912 181.4
B 0 190 85521 466.55 939 912 181.4
C 10 22 350241 1653.22 907 914 211.3
C 14 238 144706 680.51 907 914 211.3
C 2 114 17076 76.49 907 914 211.3
D 8 195 3419638 15512.46 921 894 220.4
D 1 52 641500 2906.73 921 894 220.4
D 12 218 232426 1050.57 921 894 220.4

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