ASTROSAT CZTI

Data Quality Report

Orbit 30919

Creation date: 2024-06-27T20:21:10.919132
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/AS1C06_007T01_9000004470_30919cztM0_level2.evt modeM0/AS1C06_007T01_9000004470_30919cztM0_level2_quad_clean.evt
Size (bytes)583,246,08068,757,120
Size556.2 MB 65.6 MB
Events in quadrant A3,041,432444,180
Events in quadrant B6,152,543436,284
Events in quadrant C3,398,206401,732
Events in quadrant D4,669,861384,435

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124501
B0221901
C0136751
D0178111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5940330.555556%
B59414106.901195%
C59414397.389328%
D59413886.530887%

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 7300 5941 0 0 0.00% 0.00%
B 7301 5942 221 221 3.03% 3.72%
C 7301 5942 3 3 0.04% 0.05%
D 7301 5942 304 304 4.16% 5.12%

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 0 13 22180 136.69 781 767 156.7
A 13 254 11300 67.24 781 767 156.7
A 3 137 7345 41.99 781 767 156.7
B 6 159 1730211 12007.62 776 759 144.0
B 6 36 1228530 8524.44 776 759 144.0
B 5 172 65687 450.8 776 759 144.0
C 14 238 234468 1384.73 724 729 168.8
C 14 254 162704 959.58 724 729 168.8
C 3 233 105884 622.96 724 729 168.8
D 12 218 1006094 5918.01 718 700 169.9
D 8 195 495314 2911.42 718 700 169.9
D 12 233 132503 775.83 718 700 169.9

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