ASTROSAT CZTI

Data Quality Report

Orbit 28354

Creation date: 2024-06-27T19:50:50.318823
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_116T01_9000004082_28354cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28354cztM0_level2_quad_clean.evt
Size (bytes)523,880,640101,525,760
Size499.6 MB 96.8 MB
Events in quadrant A3,518,532678,096
Events in quadrant B3,333,921696,183
Events in quadrant C3,205,813640,313
Events in quadrant D5,368,462608,463

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146780
B0140580
C0136590
D0203370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473360.556156%
B6474420.648749%
C6474640.988570%
D64733525.437973%

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 7703 6474 29 29 0.38% 0.45%
B 7704 6475 3 3 0.04% 0.05%
C 7704 6475 0 0 0.00% 0.00%
D 7702 6472 259 259 3.36% 4.00%

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 266862 1602.17 836 821 166.1
A 12 96 29831 174.71 836 821 166.1
A 13 254 11474 64.16 836 821 166.1
B 0 230 28681 177.24 834 815 157.2
B 12 111 18992 115.62 834 815 157.2
B 11 111 17304 104.88 834 815 157.2
C 14 238 131351 707.59 788 793 184.5
C 13 61 5329 24.58 788 793 184.5
C 3 233 3595 15.19 788 793 184.5
D 1 52 1264250 6887.63 779 758 183.4
D 8 195 1059318 5770.49 779 758 183.4
D 2 250 75588 407.92 779 758 183.4

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