ASTROSAT CZTI

Data Quality Report

Orbit 33065

Creation date: 2024-06-27T20:44:33.813146
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/AS1A11_080T01_9000004756_33065cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33065cztM0_level2_quad_clean.evt
Size (bytes)689,955,84057,620,160
Size658.0 MB 55.0 MB
Events in quadrant A2,605,868372,680
Events in quadrant B4,348,940342,762
Events in quadrant C2,997,964363,894
Events in quadrant D10,559,266267,403

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115023
B0166352
C0125412
D0352782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5674130.229115%
B56745499.675714%
C5674891.568558%
D5674246843.496651%

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 7256 5675 3 3 0.04% 0.05%
B 7256 5675 402 402 5.54% 7.08%
C 7256 5675 69 69 0.95% 1.22%
D 7256 5675 2643 2643 36.43% 46.57%

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 10 248 12599 89.21 664 651 133.9
A 12 227 12216 86.35 664 651 133.9
A 13 254 10483 73.41 664 651 133.9
B 5 172 907615 7474.97 636 621 121.3
B 5 200 671952 5532.76 636 621 121.3
B 0 189 110345 904.29 636 621 121.3
C 0 10 235019 1567.05 643 651 149.6
C 7 221 154156 1026.38 643 651 149.6
C 1 23 72044 477.35 643 651 149.6
D 7 223 5585054 37847.38 556 544 147.6
D 8 195 1520253 10299.38 556 544 147.6
D 2 250 754360 5108.77 556 544 147.6

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