ASTROSAT CZTI

Data Quality Report

Orbit 03477

Creation date: 2024-06-27T14:30:09.503722
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/AS1SLEW_01234_9000000463_03477cztM0_level2.evt modeM0/AS1SLEW_01234_9000000463_03477cztM0_level2_quad_clean.evt
Size (bytes)41,935,6808,795,520
Size40.0 MB 8.4 MB
Events in quadrant A499,73652,756
Events in quadrant B282,41554,094
Events in quadrant C224,74756,894
Events in quadrant D221,41555,128

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018850
B011980
C011220
D011310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A558254.480287%
B55830.537634%
C55800.000000%
D55810.179211%

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 558 558 25 25 4.48% 4.48%
B 558 558 2 2 0.36% 0.36%
C 558 558 0 0 0.00% 0.00%
D 558 558 2 2 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 0 118 169083 12380.32 54 52 13.7
A 0 50 104076 7619.02 54 52 13.7
A 0 226 15618 1140.1 54 52 13.7
B 15 204 24695 1878.55 56 55 13.1
B 3 0 22234 1690.93 56 55 13.1
B 2 249 7948 601.76 56 55 13.1
C 7 220 5934 393.65 55 56 14.9
C 13 61 440 25.72 55 56 14.9
C 10 21 322 17.81 55 56 14.9
D 13 239 4931 325.27 54 52 15.0
D 13 223 4483 295.4 54 52 15.0
D 2 37 3264 214.13 54 52 15.0

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
Veto Counter