ASTROSAT CZTI

Data Quality Report

Orbit 47590

Creation date: 2024-07-16T18:38:22.840247
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/AS1A13_037T05_9000006338_47590cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47590cztM0_level2_quad_clean.evt
Size (bytes)215,038,08024,788,160
Size205.1 MB 23.6 MB
Events in quadrant A1,926,062193,019
Events in quadrant B1,200,905215,136
Events in quadrant C871,431203,765
Events in quadrant D3,834,91420,987

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069611
B047261
C034911
D0125021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A159922013.758599%
B15991147.129456%
C1599633.939962%
D1599147292.057536%

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 2804 1600 34 34 1.21% 2.12%
B 2804 1599 7 7 0.25% 0.44%
C 2804 1599 0 0 0.00% 0.00%
D 2804 1599 1376 1376 49.07% 86.05%

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 1055370 22415.81 219 214 47.1
A 9 191 22958 483.18 219 214 47.1
A 3 137 2378 45.97 219 214 47.1
B 0 200 160372 3607.3 220 213 44.4
B 5 172 124522 2799.84 220 213 44.4
B 14 16 40764 913.34 220 213 44.4
C 12 249 6196 112.49 220 221 53.1
C 3 233 2779 48.16 220 221 53.1
C 15 208 1566 25.32 220 221 53.1
D 2 165 3173178 100858.97 119 115 31.5
D 14 34 73612 2336.18 119 115 31.5
D 2 249 65157 2067.42 119 115 31.5

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