ASTROSAT CZTI

Data Quality Report

Orbit 30272

Creation date: 2024-06-27T20:12:58.762700
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/AS1A10_007T01_9000004350_30272cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30272cztM0_level2_quad_clean.evt
Size (bytes)433,725,12061,709,760
Size413.6 MB 58.9 MB
Events in quadrant A2,750,637372,292
Events in quadrant B4,140,991348,377
Events in quadrant C2,826,211377,468
Events in quadrant D3,028,048369,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014826
B014826
C014830
D014628

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164494655
B0225546035
C0156553815
D0163383848

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5729430.750567%
B5494360.655260%
C5782510.882048%
D5796480.828157%

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 7399 6201 5 5 0.07% 0.08%
B 7401 5957 0 0 0.00% 0.00%
C 7400 6261 0 0 0.00% 0.00%
D 7401 6292 23 23 0.31% 0.37%

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 14 239 124054 902.04 680 666 136.8
A 13 254 10440 71.45 680 666 136.8
A 3 137 7056 46.71 680 666 136.8
B 6 159 1532995 12128.65 643 626 126.3
B 6 36 57637 451.24 643 626 126.3
B 0 190 25721 198.63 643 626 126.3
C 14 238 111194 705.45 665 670 156.7
C 3 233 102252 648.38 665 670 156.7
C 2 114 13311 80.69 665 670 156.7
D 8 195 191298 1089.41 669 658 175.0
D 2 250 169263 963.49 669 658 175.0
D 12 227 30830 172.42 669 658 175.0

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