ASTROSAT CZTI

Data Quality Report

Orbit 20030

Creation date: 2024-06-27T18:10:19.168646
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_180T01_9000002986_20030cztM0_level2.evt modeM0/AS1A05_180T01_9000002986_20030cztM0_level2_quad_clean.evt
Size (bytes)280,143,36048,378,240
Size267.2 MB 46.1 MB
Events in quadrant A1,672,852329,392
Events in quadrant B1,758,007328,957
Events in quadrant C1,665,314314,889
Events in quadrant D3,181,066275,639

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068211
B070701
C066991
D0113971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3027642.114305%
B3026762.511566%
C3026702.313285%
D302666822.075347%

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 4197 3028 0 0 0.00% 0.00%
B 4196 3027 3 3 0.07% 0.10%
C 4196 3027 0 0 0.00% 0.00%
D 4196 3027 597 597 14.23% 19.72%

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 16 9475 104.23 430 422 86.9
A 11 29 5550 59.04 430 422 86.9
A 13 254 4954 52.18 430 422 86.9
B 0 189 40492 488.5 425 416 82.0
B 0 245 22565 269.98 425 416 82.0
B 0 197 13263 156.6 425 416 82.0
C 14 238 65264 679.86 407 411 95.4
C 3 233 5014 48.25 407 411 95.4
C 4 254 4358 41.37 407 411 95.4
D 7 38 1585652 16665.57 392 381 95.1
D 8 195 32472 337.36 392 381 95.1
D 1 52 32144 333.92 392 381 95.1

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