ASTROSAT CZTI

Data Quality Report

Orbit 14484

Creation date: 2024-06-27T16:55:50.448171
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/AS1G08_034T02_9000002136_14484cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14484cztM0_level2_quad_clean.evt
Size (bytes)469,376,64073,759,680
Size447.6 MB 70.3 MB
Events in quadrant A3,267,782454,502
Events in quadrant B3,540,226448,225
Events in quadrant C3,567,838441,538
Events in quadrant D3,398,564436,503

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140323
B0147692
C0151282
D0144982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482681.049059%
B6482771.187905%
C6482580.894786%
D6483721.110597%

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 7518 6484 0 0 0.00% 0.00%
B 7518 6484 5 5 0.07% 0.08%
C 7518 6484 1 1 0.01% 0.02%
D 7519 6485 18 18 0.24% 0.28%

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 12 189 66371 392.78 820 803 166.9
A 11 29 11463 63.86 820 803 166.9
A 4 2 11162 62.05 820 803 166.9
B 0 189 121946 787.9 814 797 153.8
B 3 209 61001 391.54 814 797 153.8
B 0 219 49989 319.92 814 797 153.8
C 3 233 410888 2238.87 792 796 183.2
C 0 207 62538 337.07 792 796 183.2
C 14 234 6984 33.78 792 796 183.2
D 12 110 148814 754.2 795 773 196.3
D 2 120 77988 393.37 795 773 196.3
D 10 199 77751 392.17 795 773 196.3

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