ASTROSAT CZTI

Data Quality Report

Orbit 29568

Creation date: 2024-06-27T20:05:33.884080
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_9000004264_29568cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29568cztM0_level2_quad_clean.evt
Size (bytes)500,192,640114,894,720
Size477.0 MB 109.6 MB
Events in quadrant A3,125,333768,974
Events in quadrant B3,209,760789,863
Events in quadrant C3,514,154730,000
Events in quadrant D4,854,308734,282

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137582
B0139452
C0147772
D0189542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6540490.749235%
B6541630.963155%
C654169510.625287%
D65413114.754625%

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 7585 6541 0 0 0.00% 0.00%
B 7586 6542 1 1 0.01% 0.02%
C 7586 6541 0 0 0.00% 0.00%
D 7586 6542 136 136 1.79% 2.08%

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 12236 70.55 807 790 162.2
A 3 137 7995 44.41 807 790 162.2
A 0 13 7652 42.3 807 790 162.2
B 0 190 28698 182.23 808 786 153.2
B 12 111 18550 115.98 808 786 153.2
B 11 111 16859 104.94 808 786 153.2
C 14 238 297291 1684.05 753 756 176.1
C 14 254 247344 1400.4 753 756 176.1
C 2 114 15139 81.68 753 756 176.1
D 12 33 630821 3366.48 781 759 187.2
D 8 195 446673 2382.56 781 759 187.2
D 13 153 417053 2224.3 781 759 187.2

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