ASTROSAT CZTI

Data Quality Report

Orbit 13202

Creation date: 2024-06-27T16:37:38.954242
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_104T04_9000001966_13202cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13202cztM0_level2_quad_clean.evt
Size (bytes)650,021,76091,558,080
Size619.9 MB 87.3 MB
Events in quadrant A3,196,489588,435
Events in quadrant B3,671,587604,503
Events in quadrant C3,127,796599,470
Events in quadrant D9,229,512505,643

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140623
B0154112
C0139972
D0321912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6804290.426220%
B68041452.131099%
C6804140.205761%
D6804165724.353322%

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 7930 6806 1 1 0.01% 0.01%
B 7930 6806 59 59 0.74% 0.87%
C 7930 6806 0 0 0.00% 0.00%
D 7930 6806 1347 1347 16.99% 19.79%

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 18114 104.2 821 803 166.1
A 12 96 9982 55.25 821 803 166.1
A 0 226 7334 39.31 821 803 166.1
B 4 239 387789 2468.64 821 802 156.8
B 3 64 32298 200.92 821 802 156.8
B 0 214 22183 136.39 821 802 156.8
C 13 61 5714 26.43 801 806 185.7
C 15 208 3480 14.4 801 806 185.7
C 8 222 2597 9.65 801 806 185.7
D 13 122 5804863 33048.4 731 710 175.6
D 1 52 473274 2690.74 731 710 175.6
D 10 157 131636 745.48 731 710 175.6

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