ASTROSAT CZTI

Data Quality Report

Orbit 28590

Creation date: 2024-06-27T19:53:44.265713
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_102T03_9000004106_28590cztM0_level2.evt modeM0/AS1A10_102T03_9000004106_28590cztM0_level2_quad_clean.evt
Size (bytes)533,520,00084,991,680
Size508.8 MB 81.1 MB
Events in quadrant A3,593,666534,788
Events in quadrant B3,565,984541,760
Events in quadrant C3,529,492525,104
Events in quadrant D5,020,907511,752

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147602
B0146752
C0145362
D0195852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6603821.241860%
B66031141.726488%
C66031311.983947%
D66031632.468575%

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 7648 6603 14 14 0.18% 0.21%
B 7648 6603 9 9 0.12% 0.14%
C 7648 6603 4 4 0.05% 0.06%
D 7648 6603 94 94 1.23% 1.42%

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 15 174 202571 1154.15 875 859 174.8
A 8 192 12145 64.58 875 859 174.8
A 13 254 11632 61.64 875 859 174.8
B 4 171 93303 555.92 867 847 166.3
B 0 230 34405 201.78 867 847 166.3
B 12 111 19565 112.55 867 847 166.3
C 14 238 137570 695.54 846 854 196.6
C 7 247 41785 208.23 846 854 196.6
C 0 207 31555 156.19 846 854 196.6
D 8 195 1035683 5116.2 852 833 202.3
D 1 52 602648 2975.32 852 833 202.3
D 2 250 84381 413.05 852 833 202.3

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