ASTROSAT CZTI

Data Quality Report

Orbit 08305

Creation date: 2024-06-27T15:31:04.213741
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/AS1G07_080T03_9000001154_08305cztM0_level2.evt modeM0/AS1G07_080T03_9000001154_08305cztM0_level2_quad_clean.evt
Size (bytes)407,335,68064,696,320
Size388.5 MB 61.7 MB
Events in quadrant A2,999,283384,345
Events in quadrant B3,120,396388,882
Events in quadrant C2,884,921379,043
Events in quadrant D2,904,397368,349

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128952
B0131831
C0128531
D0130951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6276400.637349%
B6276460.732951%
C6276300.478011%
D6276330.525813%

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 7416 6276 0 0 0.00% 0.00%
B 7416 6276 0 0 0.00% 0.00%
C 7416 6277 2 2 0.03% 0.03%
D 7416 6277 11 11 0.15% 0.18%

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 0 23 22311 141.34 757 742 152.6
A 1 162 19788 124.8 757 742 152.6
A 13 251 14458 89.88 757 742 152.6
B 0 214 93463 644.94 760 743 143.8
B 4 81 55778 382.81 760 743 143.8
B 12 111 15158 100.27 760 743 143.8
C 9 54 37695 219.67 726 729 168.3
C 10 9 14826 83.77 726 729 168.3
C 13 61 5682 29.43 726 729 168.3
D 2 14 58534 306.47 722 704 188.7
D 13 105 47520 248.1 722 704 188.7
D 2 234 18768 95.73 722 704 188.7

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