ASTROSAT CZTI

Data Quality Report

Orbit 07398

Creation date: 2024-06-27T15:19:18.257251
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/AS1A02_031T01_9000001014_07398cztM0_level2.evt modeM0/AS1A02_031T01_9000001014_07398cztM0_level2_quad_clean.evt
Size (bytes)430,266,24085,147,200
Size410.3 MB 81.2 MB
Events in quadrant A2,856,422535,173
Events in quadrant B3,085,300553,971
Events in quadrant C2,896,825547,562
Events in quadrant D3,776,353515,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226
B0224
C02410
D0228

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013711
B01367
C013610
D013610

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139381230
B0148001372
C0139401138
D0167491324

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6092480.787919%
B6100621.016393%
C6122260.424698%
D60931592.609552%

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 8860 6231 0 0 0.00% 0.00%
B 8860 6242 3 3 0.03% 0.05%
C 8876 6258 0 0 0.00% 0.00%
D 8815 6236 104 104 1.18% 1.67%

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 13 248 10592 65.31 736 721 151.1
A 0 226 7228 43.05 736 721 151.1
A 12 194 6587 38.81 736 721 151.1
B 0 214 73645 510.09 748 731 142.9
B 10 252 72204 500.01 748 731 142.9
B 0 229 16575 110.84 748 731 142.9
C 10 22 37059 215.04 728 733 168.9
C 12 4 10303 56.65 728 733 168.9
C 1 16 6237 32.58 728 733 168.9
D 2 216 462401 2615.86 714 694 176.5
D 14 34 206388 1165.39 714 694 176.5
D 1 52 127451 718.16 714 694 176.5

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