ASTROSAT CZTI

Data Quality Report

Orbit 34266

Creation date: 2022-07-18T16:11:02.900961
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/AS1A11_059T09_9000004888_34266cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34266cztM0_level2_quad_clean.evt
Size (bytes)450,679,68076,959,360
Size429.8 MB 73.4 MB
Events in quadrant A2,386,557500,242
Events in quadrant B3,173,025505,637
Events in quadrant C2,745,775499,214
Events in quadrant D4,990,196460,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106320
B0129480
C0113670
D0184140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5206210.403381%
B52061593.054168%
C5206380.729927%
D52063296.319631%

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 7029 5207 11 11 0.16% 0.21%
B 7029 5207 106 106 1.51% 2.04%
C 7029 5207 28 28 0.40% 0.54%
D 7029 5207 230 230 3.27% 4.42%

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 9 143 55266 454.21 594 581 120.4
A 10 83 24280 196.84 594 581 120.4
A 13 6 10030 78.48 594 581 120.4
B 5 172 565693 5002.46 588 573 113.0
B 0 189 113409 998.83 588 573 113.0
B 0 229 99882 879.09 588 573 113.0
C 15 214 226803 1705.0 576 581 132.7
C 0 10 114689 860.02 576 581 132.7
C 14 67 64416 481.12 576 581 132.7
D 8 195 1886572 13599.36 560 542 138.7
D 2 250 469740 3383.19 560 542 138.7
D 13 249 306816 2208.41 560 542 138.7

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