ASTROSAT CZTI

Data Quality Report

Orbit 28209

Creation date: 2024-06-27T19:49:11.423109
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/AS1A10_045T09_9000004072_28209cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28209cztM0_level2_quad_clean.evt
Size (bytes)512,493,12088,427,520
Size488.8 MB 84.3 MB
Events in quadrant A3,342,290560,773
Events in quadrant B3,407,462572,296
Events in quadrant C3,486,617551,871
Events in quadrant D4,836,115531,938

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142650
B0144690
C0146940
D0189500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605600.908403%
B6605831.256624%
C66051291.953066%
D66051962.967449%

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 8855 6606 0 0 0.00% 0.00%
B 8855 6605 2 2 0.02% 0.03%
C 8855 6606 0 0 0.00% 0.00%
D 8855 6605 104 104 1.17% 1.57%

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 8 192 9093 47.76 861 846 172.7
A 13 254 9046 47.49 861 846 172.7
A 3 137 8352 43.47 861 846 172.7
B 12 111 19996 118.31 858 837 161.9
B 11 111 18442 108.72 858 837 161.9
B 14 111 17588 103.44 858 837 161.9
C 14 238 135931 697.02 834 840 193.8
C 3 233 92716 474.04 834 840 193.8
C 13 61 5649 24.81 834 840 193.8
D 1 52 1392720 7100.55 830 807 196.0
D 8 195 191755 974.08 830 807 196.0
D 12 250 30601 151.99 830 807 196.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter