ASTROSAT CZTI

Data Quality Report

Orbit 30967

Creation date: 2024-06-27T20:21:43.991247
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/AS1A10_058T11_9000004474_30967cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30967cztM0_level2_quad_clean.evt
Size (bytes)1,564,266,240242,184,960
Size1.5 GB 231.0 MB
Events in quadrant A9,031,0681,545,536
Events in quadrant B14,516,2641,534,435
Events in quadrant C11,611,9891,488,709
Events in quadrant D10,954,7671,477,985

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0386633
B0572632
C0464412
D0443262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186883982.129709%
B186887203.852740%
C186888994.810574%
D186886003.210616%

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 19598 18690 0 0 0.00% 0.00%
B 19598 18691 20 20 0.10% 0.11%
C 19598 18689 193 193 0.98% 1.03%
D 19598 18691 296 296 1.51% 1.58%

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 32833 65.1 2336 2282 469.3
A 3 137 24240 46.79 2336 2282 469.3
A 11 47 20871 39.61 2336 2282 469.3
B 6 159 5134124 11681.14 2291 2229 439.3
B 4 80 239522 540.12 2291 2229 439.3
B 0 190 78910 174.54 2291 2229 439.3
C 3 233 2007016 3848.36 2228 2244 520.9
C 0 10 499267 954.09 2228 2244 520.9
C 14 238 356990 680.97 2228 2244 520.9
D 2 250 1213559 2248.94 2266 2204 538.6
D 8 195 891949 1651.86 2266 2204 538.6
D 13 174 233700 429.78 2266 2204 538.6

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