ASTROSAT CZTI

Data Quality Report

Orbit 09736

Creation date: 2024-06-27T15:50:02.724033
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/AS1A03_119T01_9000001388_09736cztM0_level2.evt modeM0/AS1A03_119T01_9000001388_09736cztM0_level2_quad_clean.evt
Size (bytes)398,217,60086,569,920
Size379.8 MB 82.6 MB
Events in quadrant A2,886,045544,326
Events in quadrant B2,928,618559,266
Events in quadrant C2,876,133543,464
Events in quadrant D2,933,528528,246

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0151

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013600515
B013592436
C013639505
D013849491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01342
B01344
C01344
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372370.580665%
B6413410.639326%
C6375300.470588%
D6384370.579574%

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 7645 6594 0 0 0.00% 0.00%
B 7645 6600 0 0 0.00% 0.00%
C 7645 6591 0 0 0.00% 0.00%
D 7645 6599 5 5 0.07% 0.08%

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 0 226 6984 41.45 746 731 150.9
A 14 111 6925 41.06 746 731 150.9
A 12 194 5959 34.65 746 731 150.9
B 12 111 16734 109.99 754 739 145.4
B 11 111 13873 90.31 754 739 145.4
B 14 111 11277 72.46 754 739 145.4
C 9 237 7549 39.6 734 738 172.0
C 13 61 5387 27.03 734 738 172.0
C 8 222 3039 13.38 734 738 172.0
D 1 52 109555 573.5 725 711 189.8
D 8 195 46422 240.85 725 711 189.8
D 2 234 20049 101.89 725 711 189.8

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