ASTROSAT CZTI

Data Quality Report

Orbit 08148

Creation date: 2024-06-27T15:28:40.183258
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/AS1A03_051T01_9000001120_08148cztM0_level2.evt modeM0/AS1A03_051T01_9000001120_08148cztM0_level2_quad_clean.evt
Size (bytes)479,511,36092,136,960
Size457.3 MB 87.9 MB
Events in quadrant A3,301,901589,508
Events in quadrant B3,408,021604,166
Events in quadrant C3,361,671586,102
Events in quadrant D4,002,780551,027

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140563
B0143852
C0143872
D0163062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65851572.384207%
B65851612.444951%
C65851372.080486%
D65852413.659833%

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 9045 6585 0 0 0.00% 0.00%
B 9045 6585 1 1 0.01% 0.02%
C 9045 6585 0 0 0.00% 0.00%
D 9045 6586 132 132 1.46% 2.00%

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 8169 42.69 855 839 171.7
A 12 194 7679 39.84 855 839 171.7
A 8 15 4550 21.61 855 839 171.7
B 0 214 23751 142.14 859 841 161.2
B 4 81 19417 115.25 859 841 161.2
B 12 111 17116 100.98 859 841 161.2
C 1 16 142171 746.12 825 829 189.4
C 13 61 6322 29.0 825 829 189.4
C 12 4 2110 6.76 825 829 189.4
D 12 233 773548 3564.88 813 796 216.8
D 1 52 57777 262.87 813 796 216.8
D 7 71 29059 130.38 813 796 216.8

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