ASTROSAT CZTI

Data Quality Report

Orbit 29050

Creation date: 2024-06-27T19:59:40.188223
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/AS1C05_019T04_9000004162_29050cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29050cztM0_level2_quad_clean.evt
Size (bytes)487,874,880103,881,600
Size465.3 MB 99.1 MB
Events in quadrant A3,281,327681,487
Events in quadrant B3,404,965699,952
Events in quadrant C3,391,516680,580
Events in quadrant D4,283,124657,632

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139832
B0142273
C0142182
D0169622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6110510.834697%
B6109821.342282%
C61091272.078900%
D61091232.013423%

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 7435 6110 0 0 0.00% 0.00%
B 7434 6109 6 6 0.08% 0.10%
C 7434 6109 0 0 0.00% 0.00%
D 7434 6109 59 59 0.79% 0.97%

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 15 174 43202 255.32 837 823 166.0
A 6 16 12949 73.05 837 823 166.0
A 13 254 10808 60.16 837 823 166.0
B 10 245 104257 677.43 838 819 152.7
B 5 172 17371 108.4 838 819 152.7
B 12 111 17233 107.5 838 819 152.7
C 14 238 137038 723.6 825 834 188.2
C 3 233 17560 88.86 825 834 188.2
C 2 114 15234 76.5 825 834 188.2
D 8 195 745576 3849.44 825 805 193.5
D 1 52 266249 1371.98 825 805 193.5
D 2 250 94909 486.39 825 805 193.5

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