ASTROSAT CZTI

Data Quality Report

Orbit 01034

Creation date: 2024-06-27T14:06:28.798781
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/AS1P01_998T02_9000000190_01034cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01034cztM0_level2_quad_clean.evt
Size (bytes)569,272,32058,276,800
Size542.9 MB 55.6 MB
Events in quadrant A4,203,855388,447
Events in quadrant B4,404,272390,833
Events in quadrant C4,374,931375,760
Events in quadrant D4,033,316371,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015404541
B016020547
C015955572
D014931564

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0722
B0722
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A335930.089312%
B3358170.506254%
C334930.089579%
D3344220.657895%

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 3878 3399 128 128 3.30% 3.77%
B 3880 3396 166 166 4.28% 4.89%
C 3884 3396 171 171 4.40% 5.04%
D 3878 3393 117 117 3.02% 3.45%

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 8 14 15174 53.67 1088 1096 262.3
A 4 32 12505 43.5 1088 1096 262.3
A 13 9 3461 9.02 1088 1096 262.3
B 5 249 15543 53.45 1136 1139 269.5
B 0 220 14994 51.41 1136 1139 269.5
B 15 255 14281 48.77 1136 1139 269.5
C 15 241 156776 522.01 1061 1100 298.2
C 8 208 40564 132.33 1061 1100 298.2
C 3 111 14397 44.59 1061 1100 298.2
D 1 83 144886 452.99 1021 1056 317.5
D 13 88 24740 74.59 1021 1056 317.5
D 13 73 16926 49.98 1021 1056 317.5

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