ASTROSAT CZTI

Data Quality Report

Orbit 21366

Creation date: 2024-06-27T18:26:56.572676
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/AS1A06_009T05_9000003154_21366cztM0_level2.evt modeM0/AS1A06_009T05_9000003154_21366cztM0_level2_quad_clean.evt
Size (bytes)313,732,80038,102,400
Size299.2 MB 36.3 MB
Events in quadrant A1,924,234231,668
Events in quadrant B1,970,626233,032
Events in quadrant C2,798,369216,757
Events in quadrant D2,558,244212,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079151
B081411
C0107041
D099731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3661491.338432%
B3661641.748156%
C366143711.936629%
D3661752.048621%

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 4881 3662 0 0 0.00% 0.00%
B 4881 3663 1 1 0.02% 0.03%
C 4881 3662 92 92 1.88% 2.51%
D 4881 3662 60 60 1.23% 1.64%

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 5 168 77741 788.56 476 467 98.0
A 12 96 7251 69.23 476 467 98.0
A 13 254 5917 55.62 476 467 98.0
B 3 64 45976 499.45 472 461 91.1
B 0 190 34338 371.74 472 461 91.1
B 0 230 17251 184.24 472 461 91.1
C 3 233 1029049 10038.57 436 438 102.5
C 14 238 69333 672.37 436 438 102.5
C 13 61 3036 25.35 436 438 102.5
D 12 235 423357 3791.62 453 438 111.5
D 1 52 226364 2025.51 453 438 111.5
D 6 143 99525 888.35 453 438 111.5

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