ASTROSAT CZTI

Data Quality Report

Orbit 20200220_A07_113T01_9000003526_level2

Creation date: 2020-02-27T19:49:19.524252
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1A07_113T01_9000003526cztM0_level2_bc.evt modeM0/AS1A07_113T01_9000003526cztM0_level2_quad_clean.evt
Size (bytes)13,198,440,9603,066,537,600
Size12.3 GB 2.9 GB
Events in quadrant A49,678,62419,798,163
Events in quadrant B61,873,55520,111,519
Events in quadrant C50,564,68119,725,520
Events in quadrant D221,711,10317,218,053

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03310
B03310
C03310
D03310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047520
B047520
C047560
D047520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04895810
B05429770
C04985900
D011027030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23395624531.048488%
B23399180003.418935%
C23396842901.833584%
D2336986254526.763173%

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 314643 234093 0 0 0.00% 0.00%
B 314643 234101 265 265 0.08% 0.11%
C 314643 234093 11 11 0.00% 0.00%
D 314643 233838 12215 12215 3.88% 5.22%

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 377401 132.56 12831 12628 2751.8
A 0 226 82371 25.34 12831 12628 2751.8
A 12 194 79700 24.37 12831 12628 2751.8
B 3 64 10416873 4327.78 12908 12615 2404.1
B 15 33 811324 332.23 12908 12615 2404.1
B 4 216 317731 126.92 12908 12615 2404.1
C 0 239 609031 201.95 12580 12574 2953.4
C 7 247 541025 178.93 12580 12574 2953.4
C 0 10 410483 134.73 12580 12574 2953.4
D 8 195 108792322 40350.68 11467 11089 2695.9
D 13 174 43048910 15964.2 11467 11089 2695.9
D 1 52 21955161 8139.81 11467 11089 2695.9

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