ASTROSAT CZTI

Data Quality Report

Orbit 07366

Creation date: 2024-06-27T15:18:59.759430
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/AS1G06_157T02_9000001008_07366cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07366cztM0_level2_quad_clean.evt
Size (bytes)512,107,20090,892,800
Size488.4 MB 86.7 MB
Events in quadrant A3,413,814574,495
Events in quadrant B3,281,590594,067
Events in quadrant C3,545,242589,294
Events in quadrant D4,836,468550,020

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144813
B0139792
C0145102
D0187502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63691221.915528%
B6369841.318888%
C6369771.208981%
D63693575.605276%

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 8909 6371 38 38 0.43% 0.60%
B 8909 6371 1 1 0.01% 0.02%
C 8909 6371 0 0 0.00% 0.00%
D 8909 6369 250 250 2.81% 3.93%

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 15 239 130201 793.28 804 788 163.1
A 15 234 109589 666.93 804 788 163.1
A 14 111 70553 427.65 804 788 163.1
B 0 214 71315 452.74 821 802 155.7
B 12 111 15013 91.24 821 802 155.7
B 11 111 11968 71.69 821 802 155.7
C 9 68 371008 1988.16 804 809 186.2
C 1 16 18701 96.09 804 809 186.2
C 8 229 18300 93.94 804 809 186.2
D 1 52 1025441 5292.53 784 761 193.6
D 2 216 309062 1592.39 784 761 193.6
D 14 34 204709 1053.4 784 761 193.6

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