ASTROSAT CZTI

Data Quality Report

Orbit 28283

Creation date: 2024-06-27T19:50:01.979557
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_102T06_9000004078_28283cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28283cztM0_level2_quad_clean.evt
Size (bytes)557,775,360126,696,960
Size531.9 MB 120.8 MB
Events in quadrant A3,195,802865,118
Events in quadrant B3,868,256889,096
Events in quadrant C3,310,515867,150
Events in quadrant D6,094,670780,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135650
B0156600
C0139340
D0224780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6248631.008323%
B62482283.649168%
C62481221.952625%
D624875412.067862%

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 7568 6248 1 1 0.01% 0.02%
B 7568 6249 106 106 1.40% 1.70%
C 7568 6248 0 0 0.00% 0.00%
D 7568 6249 571 571 7.54% 9.14%

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 96 35775 216.17 817 803 161.8
A 13 254 11162 64.03 817 803 161.8
A 3 137 7176 39.39 817 803 161.8
B 10 245 596832 4030.26 818 800 147.9
B 4 200 29642 195.02 818 800 147.9
B 12 111 17425 112.42 818 800 147.9
C 14 238 133452 723.34 803 811 183.4
C 3 233 48505 260.09 803 811 183.4
C 13 61 5525 25.71 803 811 183.4
D 1 52 2091021 11788.36 761 745 177.3
D 8 195 867325 4887.18 761 745 177.3
D 12 250 106477 596.29 761 745 177.3

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