ASTROSAT CZTI

Data Quality Report

Orbit 07192

Creation date: 2024-06-27T15:16:36.554687
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/AS1A02_073T02_9000000982_07192cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07192cztM0_level2_quad_clean.evt
Size (bytes)334,272,96060,874,560
Size318.8 MB 58.1 MB
Events in quadrant A2,240,615376,983
Events in quadrant B2,324,968393,375
Events in quadrant C2,213,250382,854
Events in quadrant D3,023,799359,266

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097242
B099731
C096771
D0121081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4709300.637078%
B4709220.467190%
C470950.106180%
D4709380.806965%

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 6009 4710 1 1 0.02% 0.02%
B 6009 4710 3 3 0.05% 0.06%
C 6009 4710 0 0 0.00% 0.00%
D 6009 4710 29 29 0.48% 0.62%

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 14 111 20510 170.34 572 560 117.1
A 14 238 6988 54.88 572 560 117.1
A 0 226 5471 41.93 572 560 117.1
B 0 214 57034 504.07 580 568 112.0
B 4 239 12839 109.54 580 568 112.0
B 0 219 11147 94.44 580 568 112.0
C 9 68 26072 196.89 559 563 129.6
C 14 67 5232 36.04 559 563 129.6
C 13 61 4433 29.87 559 563 129.6
D 8 195 681430 4973.42 554 537 136.9
D 2 14 88759 644.4 554 537 136.9
D 2 216 57605 416.84 554 537 136.9

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