ASTROSAT CZTI

Data Quality Report

Orbit 19066

Creation date: 2024-06-27T17:58:41.549432
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/AS1A05_046T01_9000002834_19066cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19066cztM0_level2_quad_clean.evt
Size (bytes)475,623,36073,408,320
Size453.6 MB 70.0 MB
Events in quadrant A2,745,838462,072
Events in quadrant B3,078,913470,181
Events in quadrant C2,876,781460,013
Events in quadrant D5,309,576425,974

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01246
B01246
C01246
D01248

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012530645
B013414705
C012717642
D0210501457

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57961212.087647%
B57811582.733091%
C57961452.501725%
D576082314.288194%

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 6575 5901 0 0 0.00% 0.00%
B 6562 5874 16 16 0.24% 0.27%
C 6581 5890 0 0 0.00% 0.00%
D 6467 5841 389 389 6.02% 6.66%

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 6873 42.73 711 695 144.6
A 0 226 6141 37.67 711 695 144.6
A 3 137 5572 33.73 711 695 144.6
B 7 220 90075 654.72 705 688 136.5
B 3 112 71180 516.32 705 688 136.5
B 4 216 51862 374.83 705 688 136.5
C 14 238 106211 654.42 688 695 161.2
C 3 233 86745 533.69 688 695 161.2
C 13 61 4814 25.55 688 695 161.2
D 1 20 1493327 9214.74 663 644 162.0
D 12 218 993664 6130.18 663 644 162.0
D 1 52 159301 979.43 663 644 162.0

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