ASTROSAT CZTI

Data Quality Report

Orbit 16447

Creation date: 2024-06-27T17:22:50.360527
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/AS1C04_007T04_9000002430_16447cztM0_level2.evt modeM0/AS1C04_007T04_9000002430_16447cztM0_level2_quad_clean.evt
Size (bytes)131,500,80017,118,720
Size125.4 MB 16.3 MB
Events in quadrant A935,50395,845
Events in quadrant B1,028,389100,326
Events in quadrant C973,96296,753
Events in quadrant D919,93493,620

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039153
B042472
C039752
D039052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17901729.608939%
B179018510.335196%
C179019210.726257%
D17901417.877095%

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 2011 1792 0 0 0.00% 0.00%
B 2011 1792 0 0 0.00% 0.00%
C 2011 1792 0 0 0.00% 0.00%
D 2011 1792 0 0 0.00% 0.00%

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 0 226 2070 35.5 242 235 51.7
A 3 1 1957 33.32 242 235 51.7
A 3 137 1879 31.81 242 235 51.7
B 15 35 43928 885.62 240 233 49.3
B 4 173 23900 479.69 240 233 49.3
B 0 189 9068 179.07 240 233 49.3
C 14 238 34666 611.09 234 233 56.3
C 3 233 24158 424.6 234 233 56.3
C 13 61 1638 24.93 234 233 56.3
D 1 52 5870 92.15 240 230 61.2
D 2 234 5776 90.61 240 230 61.2
D 13 104 5237 81.81 240 230 61.2

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