ASTROSAT CZTI

Data Quality Report

Orbit 28123

Creation date: 2024-06-27T19:48:19.556506
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/AS1A10_090T14_9000004064_28123cztM0_level2.evt modeM0/AS1A10_090T14_9000004064_28123cztM0_level2_quad_clean.evt
Size (bytes)579,864,96066,830,400
Size553.0 MB 63.7 MB
Events in quadrant A3,296,299417,715
Events in quadrant B3,404,912424,837
Events in quadrant C3,319,145400,573
Events in quadrant D7,108,070334,469

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137200
B0140720
C0138260
D0254010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6392290.453692%
B6392320.500626%
C6392741.157697%
D6391132720.763574%

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 7682 6393 0 0 0.00% 0.00%
B 7682 6393 0 0 0.00% 0.00%
C 7682 6393 1 1 0.01% 0.02%
D 7681 6392 1153 1153 15.01% 18.04%

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 9573 51.63 854 840 169.2
A 3 137 7641 40.21 854 840 169.2
A 0 226 7286 38.11 854 840 169.2
B 10 246 34023 209.3 851 830 158.6
B 10 245 24089 146.66 851 830 158.6
B 12 111 18917 114.05 851 830 158.6
C 14 238 134309 709.47 811 816 188.2
C 2 16 13302 66.36 811 816 188.2
C 3 233 7211 33.99 811 816 188.2
D 13 168 1808495 10551.2 725 709 171.3
D 12 2 1633824 9531.73 725 709 171.3
D 1 52 435232 2536.11 725 709 171.3

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