ASTROSAT CZTI

Data Quality Report

Orbit 13488

Creation date: 2024-06-27T16:41:32.883424
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/AS1A04_103T01_9000001988_13488cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13488cztM0_level2_quad_clean.evt
Size (bytes)471,594,24067,939,200
Size449.7 MB 64.8 MB
Events in quadrant A3,226,489407,564
Events in quadrant B3,341,352415,884
Events in quadrant C3,253,832408,292
Events in quadrant D4,031,236383,867

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135663
B0139072
C0136772
D0160812

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6319651.028644%
B6319741.171071%
C6319480.759614%
D6319911.440101%

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 7545 6320 0 0 0.00% 0.00%
B 7545 6320 3 3 0.04% 0.05%
C 7545 6320 0 0 0.00% 0.00%
D 7545 6320 32 32 0.42% 0.51%

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 1 162 19632 113.5 831 814 165.8
A 0 226 7473 40.16 831 814 165.8
A 1 178 6820 36.22 831 814 165.8
B 0 230 58283 372.27 827 806 154.4
B 3 64 24618 154.23 827 806 154.4
B 0 214 20091 124.91 827 806 154.4
C 3 233 79842 426.06 813 816 185.5
C 13 61 5876 27.28 813 816 185.5
C 0 207 3544 14.71 813 816 185.5
D 13 122 817913 4275.49 802 781 191.1
D 8 195 55684 287.27 802 781 191.1
D 9 85 42659 219.12 802 781 191.1

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