ASTROSAT CZTI

Data Quality Report

Orbit 26316

Creation date: 2024-06-27T19:27:23.234454
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/AS1A09_008T02_9000003796_26316cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26316cztM0_level2_quad_clean.evt
Size (bytes)452,073,600125,363,520
Size431.1 MB 119.6 MB
Events in quadrant A3,115,413840,766
Events in quadrant B3,193,983865,568
Events in quadrant C3,311,362838,581
Events in quadrant D3,644,465814,786

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130280
B0132580
C0134610
D0147390

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6266290.462815%
B6266480.766039%
C6266891.420364%
D62661492.377913%

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 7606 6267 0 0 0.00% 0.00%
B 7606 6268 0 0 0.00% 0.00%
C 7606 6267 0 0 0.00% 0.00%
D 7606 6268 92 92 1.21% 1.47%

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 9911 57.77 804 789 157.9
A 3 137 7022 39.47 804 789 157.9
A 0 226 6762 37.83 804 789 157.9
B 12 111 17387 111.02 811 791 149.5
B 11 111 15744 100.03 811 791 149.5
B 14 111 14360 90.77 811 791 149.5
C 14 238 129920 704.06 798 805 183.4
C 3 233 44492 238.22 798 805 183.4
C 2 16 26464 139.92 798 805 183.4
D 1 52 466243 2499.96 792 775 186.2
D 11 176 91750 488.61 792 775 186.2
D 12 233 38344 201.78 792 775 186.2

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