ASTROSAT CZTI

Data Quality Report

Orbit 32434

Creation date: 2024-06-27T20:40:08.579749
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/AS1A09_108T02_9000004706_32434cztM0_level2.evt modeM0/AS1A09_108T02_9000004706_32434cztM0_level2_quad_clean.evt
Size (bytes)576,342,72068,400,000
Size549.6 MB 65.2 MB
Events in quadrant A3,299,279408,139
Events in quadrant B5,901,950421,369
Events in quadrant C3,880,439390,837
Events in quadrant D3,923,886387,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139353
B0223202
C0156242
D0160882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6631450.678631%
B66311972.970894%
C66312103.166943%
D6631560.844518%

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 7686 6632 0 0 0.00% 0.00%
B 7686 6632 23 23 0.30% 0.35%
C 7686 6632 49 49 0.64% 0.74%
D 7686 6632 27 27 0.35% 0.41%

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 11492 63.08 851 836 168.9
A 13 6 10818 59.09 851 836 168.9
A 3 137 8784 47.05 851 836 168.9
B 6 159 1744812 10826.38 840 817 161.1
B 4 80 858682 5325.46 840 817 161.1
B 12 111 20183 120.22 840 817 161.1
C 3 233 319689 1693.75 802 806 188.3
C 14 238 138377 730.71 802 806 188.3
C 10 22 94803 499.26 802 806 188.3
D 8 195 589892 3056.54 816 796 192.7
D 2 250 153276 791.15 816 796 192.7
D 12 1 33022 167.21 816 796 192.7

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