ASTROSAT CZTI

Data Quality Report

Orbit 29326

Creation date: 2024-06-27T20:02:45.177927
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_050T03_9000004216_29326cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29326cztM0_level2_quad_clean.evt
Size (bytes)735,744,96078,209,280
Size701.7 MB 74.6 MB
Events in quadrant A2,992,415554,220
Events in quadrant B4,079,823555,348
Events in quadrant C3,587,722529,071
Events in quadrant D11,244,721338,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119521
B0155541
C0145861
D0370831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5578400.717103%
B55783937.045536%
C5579921.649041%
D5579395170.819143%

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 6883 5579 0 0 0.00% 0.00%
B 6883 5579 246 246 3.57% 4.41%
C 6884 5580 0 0 0.00% 0.00%
D 6884 5580 3644 3644 52.93% 65.30%

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 0 13 14496 89.84 769 756 152.9
A 13 254 11245 68.58 769 756 152.9
A 0 226 6759 39.25 769 756 152.9
B 10 245 872637 6389.06 728 712 136.5
B 5 255 226040 1651.1 728 712 136.5
B 0 190 74142 538.06 728 712 136.5
C 3 233 486379 2850.21 731 737 170.4
C 14 238 120190 701.07 731 737 170.4
C 10 9 111271 648.72 731 737 170.4
D 12 33 8805966 82305.78 438 427 107.0
D 8 195 335151 3128.68 438 427 107.0
D 1 52 246047 2295.82 438 427 107.0

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