ASTROSAT CZTI

Data Quality Report

Orbit 11599

Creation date: 2024-06-27T16:15:44.575419
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_130T04_9000001704_11599cztM0_level2.evt modeM0/AS1A04_130T04_9000001704_11599cztM0_level2_quad_clean.evt
Size (bytes)771,071,04076,991,040
Size735.4 MB 73.4 MB
Events in quadrant A9,899,199430,113
Events in quadrant B4,988,115473,959
Events in quadrant C3,192,825472,429
Events in quadrant D4,790,025457,357

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0344902
B0197661
C0145051
D0191271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7132178425.014021%
B71324626.477846%
C7132270.378575%
D71321912.678071%

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 7478 7134 1050 1050 14.04% 14.72%
B 7478 7134 223 223 2.98% 3.13%
C 7478 7134 0 0 0.00% 0.00%
D 7478 7134 66 66 0.88% 0.93%

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 8 5 6321131 39393.05 778 760 160.4
A 1 162 200923 1247.56 778 760 160.4
A 1 178 117584 728.13 778 760 160.4
B 4 239 1235323 7770.99 823 802 158.9
B 3 64 176938 1108.73 823 802 158.9
B 10 16 145180 908.82 823 802 158.9
C 13 61 6014 27.44 815 819 189.3
C 8 128 3642 14.91 815 819 189.3
C 9 54 3288 13.04 815 819 189.3
D 1 52 477109 2424.84 812 788 196.4
D 5 222 316063 1604.99 812 788 196.4
D 8 195 302144 1534.14 812 788 196.4

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