ASTROSAT CZTI

Data Quality Report

Orbit 32380

Creation date: 2024-06-27T20:39:32.929474
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/AS1A09_131T01_9000004702_32380cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32380cztM0_level2_quad_clean.evt
Size (bytes)684,936,000140,218,560
Size653.2 MB 133.7 MB
Events in quadrant A3,302,423997,246
Events in quadrant B7,946,719912,559
Events in quadrant C4,591,963961,198
Events in quadrant D4,481,751940,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139242
B0279871
C0178781
D0177281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6228751.204239%
B6228139822.447013%
C62285198.333333%
D62282644.238921%

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 7518 6229 0 0 0.00% 0.00%
B 7517 6228 753 753 10.02% 12.09%
C 7518 6229 160 160 2.13% 2.57%
D 7518 6229 133 133 1.77% 2.14%

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 13 254 11887 65.61 849 835 168.4
A 0 6 8755 47.02 849 835 168.4
A 0 226 7891 41.89 849 835 168.4
B 4 80 2110062 14912.97 782 766 141.4
B 6 159 1786731 12626.98 782 766 141.4
B 5 172 800527 5654.41 782 766 141.4
C 3 233 1045619 5596.17 817 824 186.7
C 14 238 150886 803.76 817 824 186.7
C 0 10 69514 367.92 817 824 186.7
D 8 195 575255 2986.68 825 805 192.3
D 12 233 360699 1871.16 825 805 192.3
D 13 249 206728 1070.63 825 805 192.3

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