ASTROSAT CZTI

Data Quality Report

Orbit 35069

Creation date: 2022-03-24T17:25:55.071460
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/AS1T05_015T01_9000005026_35069cztM0_level2.evt modeM0/AS1T05_015T01_9000005026_35069cztM0_level2_quad_clean.evt
Size (bytes)481,524,48061,513,920
Size459.2 MB 58.7 MB
Events in quadrant A2,770,152369,201
Events in quadrant B3,299,668374,662
Events in quadrant C3,069,664369,925
Events in quadrant D5,054,828347,785

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117693
B0132812
C0123262
D0191802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A572740.069845%
B57271362.374716%
C5727440.768291%
D57271893.300157%

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 7430 5728 0 0 0.00% 0.00%
B 7430 5728 91 91 1.22% 1.59%
C 7430 5728 41 41 0.55% 0.72%
D 7430 5728 170 170 2.29% 2.97%

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 10 83 79292 564.23 692 678 139.3
A 13 6 13089 89.08 692 678 139.3
A 13 254 9015 59.84 692 678 139.3
B 5 172 463404 3518.76 677 658 131.5
B 0 190 75758 571.06 677 658 131.5
B 0 189 37256 278.29 677 658 131.5
C 15 214 241232 1571.56 664 669 153.1
C 0 10 145039 943.15 664 669 153.1
C 12 250 57943 374.16 664 669 153.1
D 8 195 1364376 8450.52 661 643 161.4
D 2 250 254035 1570.17 661 643 161.4
D 10 203 219982 1359.16 661 643 161.4

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