ASTROSAT CZTI

Data Quality Report

Orbit 13650

Creation date: 2024-06-27T16:44:03.041229
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_083T03_9000002022_13650cztM0_level2.evt modeM0/AS1G08_083T03_9000002022_13650cztM0_level2_quad_clean.evt
Size (bytes)468,596,16068,607,360
Size446.9 MB 65.4 MB
Events in quadrant A3,297,989412,060
Events in quadrant B3,488,002418,999
Events in quadrant C3,433,805411,733
Events in quadrant D3,546,635397,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134403
B0140232
C0138362
D0141492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62571071.710085%
B62571432.285440%
C62571081.726067%
D62571031.646156%

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 8928 6260 10 10 0.11% 0.16%
B 8928 6260 6 6 0.07% 0.10%
C 8928 6260 2 2 0.02% 0.03%
D 8928 6260 12 12 0.13% 0.19%

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 96 45085 260.67 845 828 169.8
A 0 226 7633 40.08 845 828 169.8
A 12 194 6490 33.35 845 828 169.8
B 3 64 59969 372.55 847 828 158.7
B 0 219 51199 317.31 847 828 158.7
B 0 214 39878 245.99 847 828 158.7
C 3 233 188227 991.24 830 835 189.0
C 14 234 10967 53.59 830 835 189.0
C 13 61 5969 27.16 830 835 189.0
D 8 195 325782 1511.17 817 800 215.1
D 2 136 40656 185.33 817 800 215.1
D 13 249 34731 157.78 817 800 215.1

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