ASTROSAT CZTI

Data Quality Report

Orbit 31088

Creation date: 2024-06-27T20:23:12.820820
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/AS1A10_109T01_9000004492_31088cztM0_level2.evt modeM0/AS1A10_109T01_9000004492_31088cztM0_level2_quad_clean.evt
Size (bytes)571,645,44079,839,360
Size545.2 MB 76.1 MB
Events in quadrant A3,538,166499,506
Events in quadrant B5,418,975492,540
Events in quadrant C3,904,538475,885
Events in quadrant D3,985,290470,905

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147012
B0209512
C0157592
D0161582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68761241.803374%
B68772042.966410%
C68772383.460811%
D6877961.395958%

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 8791 6878 0 0 0.00% 0.00%
B 8792 6879 0 0 0.00% 0.00%
C 8792 6879 16 16 0.18% 0.23%
D 8792 6879 2 2 0.02% 0.03%

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 12321 63.21 915 900 180.7
A 3 137 9246 46.19 915 900 180.7
A 0 226 7757 37.95 915 900 180.7
B 6 159 1853092 10781.58 894 874 171.8
B 12 111 21528 120.22 894 874 171.8
B 0 230 21477 119.93 894 874 171.8
C 0 10 209614 1034.18 864 872 201.8
C 10 22 147945 728.65 864 872 201.8
C 14 238 140451 691.52 864 872 201.8
D 8 195 378564 1831.2 882 861 206.3
D 13 174 216490 1045.42 882 861 206.3
D 2 234 29688 139.76 882 861 206.3

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