ASTROSAT CZTI

Data Quality Report

Orbit 14809

Creation date: 2024-06-27T16:59:58.127018
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/AS1A04_130T03_9000002186_14809cztM0_level2.evt modeM0/AS1A04_130T03_9000002186_14809cztM0_level2_quad_clean.evt
Size (bytes)478,618,56076,685,760
Size456.4 MB 73.1 MB
Events in quadrant A3,342,696479,837
Events in quadrant B3,642,741476,251
Events in quadrant C3,810,172455,595
Events in quadrant D3,259,861458,703

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138243
B0147072
C0155282
D0138682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64801011.558642%
B64801812.793210%
C6480620.956790%
D6480570.879630%

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 7556 6482 0 0 0.00% 0.00%
B 7556 6482 37 37 0.49% 0.57%
C 7556 6482 1 1 0.01% 0.02%
D 7556 6482 8 8 0.11% 0.12%

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 12 189 65218 376.88 847 828 170.8
A 14 237 10066 54.07 847 828 170.8
A 13 248 9594 51.31 847 828 170.8
B 3 64 171862 1079.0 836 817 158.5
B 4 173 76285 476.07 836 817 158.5
B 15 35 36084 222.47 836 817 158.5
C 3 233 638660 3440.41 805 809 185.4
C 0 207 23478 122.27 805 809 185.4
C 10 22 6286 29.54 805 809 185.4
D 10 199 58513 296.87 815 796 194.4
D 10 70 39207 197.57 815 796 194.4
D 13 249 27426 136.97 815 796 194.4

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