ASTROSAT CZTI

Data Quality Report

Orbit 10352

Creation date: 2024-06-27T15:58:14.985818
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/AS1C02_038T02_9000001490_10352cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10352cztM0_level2_quad_clean.evt
Size (bytes)509,463,36075,493,440
Size485.9 MB 72.0 MB
Events in quadrant A3,441,188445,216
Events in quadrant B4,124,929447,126
Events in quadrant C3,424,832449,200
Events in quadrant D3,939,325433,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152453
B0170932
C0152812
D0163412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73431722.342367%
B73433004.085524%
C73431151.566117%
D73431492.029143%

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 7898 7343 0 0 0.00% 0.00%
B 7898 7343 78 78 0.99% 1.06%
C 7898 7343 1 1 0.01% 0.01%
D 7898 7343 27 27 0.34% 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 3 1 9481 47.55 889 867 181.2
A 13 251 8858 44.11 889 867 181.2
A 0 226 8069 39.76 889 867 181.2
B 4 239 477961 2791.57 885 861 170.9
B 0 214 72806 420.96 885 861 170.9
B 0 219 43574 249.92 885 861 170.9
C 14 234 20322 95.67 871 876 203.3
C 4 175 7985 34.98 871 876 203.3
C 13 61 6528 27.81 871 876 203.3
D 8 195 278107 1338.03 867 843 207.2
D 1 52 135337 649.05 867 843 207.2
D 2 33 96784 462.99 867 843 207.2

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