ASTROSAT CZTI

Data Quality Report

Orbit 07028

Creation date: 2024-06-27T15:14:39.382684
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_029T01_9000000964_07028cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07028cztM0_level2_quad_clean.evt
Size (bytes)1,296,976,320245,234,880
Size1.2 GB 233.9 MB
Events in quadrant A8,560,3261,567,574
Events in quadrant B8,657,1701,583,180
Events in quadrant C8,243,0681,566,217
Events in quadrant D12,588,0321,456,235

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0377534
B0377643
C0370693
D0494923

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182072751.510408%
B182071190.653595%
C18207370.203219%
D182079485.206789%

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 20107 18210 0 0 0.00% 0.00%
B 20107 18210 6 6 0.03% 0.03%
C 20107 18210 3 3 0.01% 0.02%
D 20107 18210 794 794 3.95% 4.36%

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 14 111 173692 390.95 2142 2094 438.9
A 15 234 81206 180.24 2142 2094 438.9
A 8 15 43107 93.44 2142 2094 438.9
B 0 214 89582 211.01 2168 2115 414.5
B 7 202 57087 132.61 2168 2115 414.5
B 0 219 41441 94.87 2168 2115 414.5
C 12 4 22928 42.6 2100 2118 488.5
C 1 16 20595 37.83 2100 2118 488.5
C 13 61 16064 28.55 2100 2118 488.5
D 2 216 3129403 6090.89 2067 2008 513.5
D 12 233 767039 1489.97 2067 2008 513.5
D 8 195 550000 1067.26 2067 2008 513.5

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