ASTROSAT CZTI

Data Quality Report

Orbit 28411

Creation date: 2024-06-27T19:51:28.385029
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_058T13_9000004088_28411cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28411cztM0_level2_quad_clean.evt
Size (bytes)539,657,28086,477,760
Size514.7 MB 82.5 MB
Events in quadrant A2,838,597581,620
Events in quadrant B4,008,997577,132
Events in quadrant C2,844,417550,740
Events in quadrant D6,254,696499,784

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122820
B0157310
C0122620
D0225220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5852430.734792%
B58521953.332194%
C5853751.281394%
D585285014.524949%

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 6932 5852 0 0 0.00% 0.00%
B 6932 5852 129 129 1.86% 2.20%
C 6933 5853 3 3 0.04% 0.05%
D 6931 5851 894 894 12.90% 15.28%

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 8644 53.29 736 722 148.6
A 3 137 7091 42.85 736 722 148.6
A 0 226 6313 37.61 736 722 148.6
B 10 245 1117898 8028.65 724 709 139.2
B 0 230 30969 217.46 724 709 139.2
B 12 111 16863 116.09 724 709 139.2
C 14 238 114486 695.6 693 697 163.6
C 7 220 30516 182.28 693 697 163.6
C 13 61 4864 25.47 693 697 163.6
D 1 52 1530156 9481.35 676 658 161.3
D 8 195 1293033 8011.42 676 658 161.3
D 2 250 777924 4818.27 676 658 161.3

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