ASTROSAT CZTI

Data Quality Report

Orbit 29649

Creation date: 2024-06-27T20:06:28.725704
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/AS1C05_019T01_9000004270_29649cztM0_level2.evt modeM0/AS1C05_019T01_9000004270_29649cztM0_level2_quad_clean.evt
Size (bytes)554,538,240112,795,200
Size528.8 MB 107.6 MB
Events in quadrant A3,229,042730,442
Events in quadrant B3,448,155753,422
Events in quadrant C3,573,536734,082
Events in quadrant D6,055,510697,564

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146674
B0151822
C0153312
D0229352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71801001.392758%
B71811452.019217%
C71811472.047069%
D71816719.344102%

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 7355 7183 0 0 0.00% 0.00%
B 7356 7183 14 14 0.19% 0.19%
C 7356 7184 20 20 0.27% 0.28%
D 7356 7184 543 543 7.38% 7.56%

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 13 254 13068 72.85 834 816 168.2
A 3 137 8535 45.9 834 816 168.2
A 0 13 8028 42.88 834 816 168.2
B 10 245 128954 797.89 834 812 160.6
B 12 111 20617 123.32 834 812 160.6
B 11 111 18147 107.94 834 812 160.6
C 3 233 197586 1046.14 806 810 188.1
C 14 238 129484 684.08 806 810 188.1
C 7 247 60750 318.66 806 810 188.1
D 7 80 1241762 6659.8 781 760 186.3
D 7 238 971803 5211.07 781 760 186.3
D 8 195 630504 3379.5 781 760 186.3

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