ASTROSAT CZTI

Data Quality Report

Orbit 05862

Creation date: 2024-06-27T15:00:08.609949
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/AS1G06_033T01_9000000760_05862cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05862cztM0_level2_quad_clean.evt
Size (bytes)425,678,40059,037,120
Size406.0 MB 56.3 MB
Events in quadrant A2,947,642346,998
Events in quadrant B3,075,671350,607
Events in quadrant C2,838,298348,390
Events in quadrant D3,625,841325,977

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124372
B0126801
C0122661
D0145401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5947761.277955%
B5947921.546998%
C5947570.958466%
D59471462.455019%

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 7222 5948 5 5 0.07% 0.08%
B 7222 5948 5 5 0.07% 0.08%
C 7222 5948 0 0 0.00% 0.00%
D 7222 5948 76 76 1.05% 1.28%

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 15 234 45337 294.93 750 736 151.2
A 15 174 11989 74.41 750 736 151.2
A 0 226 7320 43.54 750 736 151.2
B 15 204 66435 447.91 762 745 146.7
B 15 255 23933 158.11 762 745 146.7
B 0 219 21937 144.5 762 745 146.7
C 14 67 6008 31.51 726 732 167.4
C 13 61 6007 31.51 726 732 167.4
C 3 202 1814 6.46 726 732 167.4
D 2 152 252793 1423.56 721 701 177.1
D 12 233 190919 1074.16 721 701 177.1
D 2 63 174361 980.65 721 701 177.1

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