ASTROSAT CZTI

Data Quality Report

Orbit 08496

Creation date: 2024-06-27T15:33:30.085699
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/AS1G07_060T01_9000001200_08496cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08496cztM0_level2_quad_clean.evt
Size (bytes)409,455,36082,673,280
Size390.5 MB 78.8 MB
Events in quadrant A2,915,448526,038
Events in quadrant B3,139,376532,513
Events in quadrant C2,864,140518,852
Events in quadrant D3,062,822496,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01282
C01282
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012816137
B013365175
C012816133
D013129178

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6162180.292113%
B6145560.911310%
C6161110.178542%
D6143150.244180%

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 8857 6224 0 0 0.00% 0.00%
B 8857 6223 24 24 0.27% 0.39%
C 8857 6223 0 0 0.00% 0.00%
D 8856 6222 3 3 0.03% 0.05%

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 0 226 7042 41.27 756 740 152.7
A 12 194 6589 38.31 756 740 152.7
A 13 251 5208 29.26 756 740 152.7
B 4 173 124610 863.67 757 741 143.4
B 0 214 69557 479.81 757 741 143.4
B 12 111 15742 104.59 757 741 143.4
C 12 4 6250 32.5 732 737 169.6
C 13 61 5647 28.94 732 737 169.6
C 8 222 2870 12.57 732 737 169.6
D 1 52 252087 1463.09 719 703 171.8
D 8 195 30081 170.98 719 703 171.8
D 2 234 17398 97.17 719 703 171.8

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