ASTROSAT CZTI

Data Quality Report

Orbit 28021

Creation date: 2024-06-27T19:47:09.210797
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_045T01_9000004046_28021cztM0_level2.evt modeM0/AS1A10_045T01_9000004046_28021cztM0_level2_quad_clean.evt
Size (bytes)573,485,76066,683,520
Size546.9 MB 63.6 MB
Events in quadrant A3,415,371408,566
Events in quadrant B3,456,912406,172
Events in quadrant C3,682,475382,037
Events in quadrant D6,379,265375,016

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140120
B0141710
C0150610
D0235160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408410.639825%
B6408671.045568%
C64081432.231586%
D640873611.485643%

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 7608 6408 1 1 0.01% 0.02%
B 7608 6408 0 0 0.00% 0.00%
C 7608 6408 7 7 0.09% 0.11%
D 7608 6408 710 710 9.33% 11.08%

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 9927 51.95 881 866 174.4
A 0 13 9036 46.84 881 866 174.4
A 8 192 8022 41.03 881 866 174.4
B 10 245 27696 162.62 873 853 165.1
B 12 111 19987 115.92 873 853 165.1
B 11 111 17856 103.01 873 853 165.1
C 3 233 289153 1488.61 833 840 193.7
C 14 238 136562 700.76 833 840 193.7
C 2 16 14912 72.66 833 840 193.7
D 1 52 2463018 12983.45 799 780 189.6
D 8 195 713335 3757.32 799 780 189.6
D 7 80 93765 490.31 799 780 189.6

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