ASTROSAT CZTI

Data Quality Report

Orbit 07669

Creation date: 2024-06-27T15:22:29.242377
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/AS1G06_114T01_9000001056_07669cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07669cztM0_level2_quad_clean.evt
Size (bytes)454,268,16085,844,160
Size433.2 MB 81.9 MB
Events in quadrant A2,902,807545,417
Events in quadrant B3,087,150554,742
Events in quadrant C2,982,563551,648
Events in quadrant D4,366,401517,922

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126162
B0130291
C0128371
D0171311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6155210.341186%
B6155410.666125%
C6155300.487409%
D61555749.325751%

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 7370 6156 0 0 0.00% 0.00%
B 7370 6156 3 3 0.04% 0.05%
C 7370 6156 6 6 0.08% 0.10%
D 7370 6156 618 618 8.39% 10.04%

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 0 226 7136 41.58 754 738 153.9
A 12 194 6696 38.72 754 738 153.9
A 13 254 3021 14.84 754 738 153.9
B 4 239 53539 367.42 758 741 143.7
B 10 245 24220 163.39 758 741 143.7
B 0 214 23228 156.49 758 741 143.7
C 9 68 73199 415.87 744 751 174.2
C 13 61 5716 28.5 744 751 174.2
C 12 4 4599 22.09 744 751 174.2
D 1 20 1506486 8457.55 730 710 178.0
D 2 152 37462 206.43 730 710 178.0
D 13 104 20378 110.47 730 710 178.0

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