ASTROSAT CZTI

Data Quality Report

Orbit 29122

Creation date: 2024-06-27T20:00:32.201342
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_099T01_9000004184_29122cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29122cztM0_level2_quad_clean.evt
Size (bytes)573,125,76073,817,280
Size546.6 MB 70.4 MB
Events in quadrant A3,561,516456,461
Events in quadrant B3,686,394461,768
Events in quadrant C3,900,776442,441
Events in quadrant D5,774,174427,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148182
B0150902
C0160622
D0215342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64051001.561280%
B64051201.873536%
C64051612.513661%
D640583413.021077%

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 7695 6405 0 0 0.00% 0.00%
B 7695 6405 14 14 0.18% 0.22%
C 7695 6405 1 1 0.01% 0.02%
D 7695 6405 733 733 9.53% 11.44%

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 13 254 10037 49.93 923 909 182.8
A 3 137 8116 39.42 923 909 182.8
A 0 226 8062 39.13 923 909 182.8
B 10 245 66764 390.26 910 892 168.8
B 0 190 59680 348.29 910 892 168.8
B 12 111 20070 113.62 910 892 168.8
C 3 233 334026 1654.13 874 884 201.4
C 14 238 143879 710.01 874 884 201.4
C 2 114 15346 71.81 874 884 201.4
D 1 52 2245258 11415.76 837 820 196.6
D 8 195 248178 1258.12 837 820 196.6
D 12 16 45488 227.19 837 820 196.6

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