ASTROSAT CZTI

Data Quality Report

Orbit 11530

Creation date: 2024-06-27T16:14:19.199842
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/AS1A04_022T05_9000001690_11530cztM0_level2.evt modeM0/AS1A04_022T05_9000001690_11530cztM0_level2_quad_clean.evt
Size (bytes)585,950,40091,177,920
Size558.8 MB 87.0 MB
Events in quadrant A5,079,302541,474
Events in quadrant B4,305,160555,652
Events in quadrant C3,455,596586,823
Events in quadrant D4,393,907551,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200223
B0177742
C0153432
D0181822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75433464.587034%
B75431712.267003%
C7543360.477264%
D75431171.551107%

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 9084 7546 154 154 1.70% 2.04%
B 9084 7546 56 56 0.62% 0.74%
C 9084 7546 0 0 0.00% 0.00%
D 9084 7546 79 79 0.87% 1.05%

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 8 5 1415318 7799.79 880 859 181.3
A 9 143 133339 730.54 880 859 181.3
A 1 162 45944 248.61 880 859 181.3
B 4 239 479796 2796.85 893 870 171.2
B 15 204 187140 1087.78 893 870 171.2
B 0 229 30334 172.06 893 870 171.2
C 14 67 10615 46.89 884 889 207.4
C 13 61 6469 26.9 884 889 207.4
C 3 202 2200 6.32 884 889 207.4
D 1 52 497679 2362.69 871 846 210.3
D 13 104 117460 554.56 871 846 210.3
D 5 222 96684 455.76 871 846 210.3

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