ASTROSAT CZTI

Data Quality Report

Orbit 47986

Creation date: 2024-08-12T15:14:33.262761
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/AS1A13_062T02_9000006384_47986cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47986cztM0_level2_quad_clean.evt
Size (bytes)532,105,920128,485,440
Size507.5 MB 122.5 MB
Events in quadrant A7,650,525847,327
Events in quadrant B3,583,858885,715
Events in quadrant C3,792,324849,356
Events in quadrant D4,073,066772,895

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279231
B0162751
C0168731
D0178751

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76962883.742204%
B76961772.299896%
C76971231.598025%
D76971141.481097%

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 7725 7696 0 0 0.00% 0.00%
B 7725 7695 3 3 0.04% 0.04%
C 7726 7696 46 46 0.60% 0.60%
D 7726 7696 28 28 0.36% 0.36%

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 10 83 4189341 22651.19 888 868 184.9
A 14 248 20970 108.71 888 868 184.9
A 7 3 15441 78.81 888 868 184.9
B 12 111 22922 125.1 893 867 176.3
B 11 111 21138 114.98 893 867 176.3
B 14 111 20531 111.54 893 867 176.3
C 14 254 215802 1017.06 889 894 211.3
C 15 208 78745 368.43 889 894 211.3
C 14 67 23080 105.0 889 894 211.3
D 13 29 241391 1063.44 892 865 226.2
D 2 249 191676 843.64 892 865 226.2
D 2 37 98686 432.5 892 865 226.2

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