ASTROSAT CZTI

Data Quality Report

Orbit 07452

Creation date: 2024-06-27T15:19:56.071372
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/AS1A02_108T01_9000001024_07452cztM0_level2.evt modeM0/AS1A02_108T01_9000001024_07452cztM0_level2_quad_clean.evt
Size (bytes)523,667,52064,036,800
Size499.4 MB 61.1 MB
Events in quadrant A3,282,411375,668
Events in quadrant B3,420,701379,110
Events in quadrant C4,228,152366,448
Events in quadrant D4,478,653355,394

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141283
B0144772
C0168082
D0179822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6630981.478130%
B66301001.508296%
C66301271.915535%
D66302373.574661%

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 7820 6630 0 0 0.00% 0.00%
B 7820 6630 3 3 0.04% 0.05%
C 7820 6630 63 63 0.81% 0.95%
D 7820 6630 108 108 1.38% 1.63%

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 14 8499 45.06 848 832 170.2
A 0 226 8241 43.54 848 832 170.2
A 12 194 7432 38.79 848 832 170.2
B 0 214 103410 637.97 851 831 160.8
B 12 111 16188 95.51 851 831 160.8
B 11 111 12918 75.17 851 831 160.8
C 9 68 941522 4981.38 815 818 188.8
C 1 16 103861 545.65 815 818 188.8
C 13 61 6391 29.51 815 818 188.8
D 13 105 671116 3421.78 811 789 195.9
D 1 20 298762 1521.04 811 789 195.9
D 12 221 136164 691.04 811 789 195.9

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