ASTROSAT CZTI

Data Quality Report

Orbit 03349

Creation date: 2024-06-27T14:27:53.301537
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/AS1G05_246T01_9000000450_03349cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03349cztM0_level2_quad_clean.evt
Size (bytes)1,511,052,480202,708,800
Size1.4 GB 193.3 MB
Events in quadrant A9,818,8781,168,900
Events in quadrant B11,802,9511,194,982
Events in quadrant C12,485,8881,161,067
Events in quadrant D10,208,3301,140,167

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0444734
B0486993
C0519873
D0466306

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04340
B04340
C04340
D04340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A213787343.433436%
B213787533.522313%
C2137811255.262419%
D213777313.419563%

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 25101 21382 4 4 0.02% 0.02%
B 25101 21382 39 39 0.16% 0.18%
C 25101 21382 485 485 1.93% 2.27%
D 25101 21381 134 134 0.53% 0.63%

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 14 249 53885 99.63 2517 2458 516.2
A 0 50 41796 76.21 2517 2458 516.2
A 0 226 27750 49.0 2517 2458 516.2
B 15 204 1343248 2695.82 2547 2482 497.3
B 14 167 196091 389.28 2547 2482 497.3
B 0 229 178469 353.85 2547 2482 497.3
C 8 208 1752987 3073.39 2435 2448 569.6
C 14 223 734053 1284.46 2435 2448 569.6
C 9 54 162758 281.45 2435 2448 569.6
D 13 223 826010 1381.2 2454 2376 596.3
D 4 160 42544 67.36 2454 2376 596.3
D 2 206 31993 49.67 2454 2376 596.3

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