ASTROSAT CZTI

Data Quality Report

Orbit 03421

Creation date: 2024-06-27T14:28:47.949402
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/AS1G05_167T01_9000000456_03421cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03421cztM0_level2_quad_clean.evt
Size (bytes)544,325,76089,017,920
Size519.1 MB 84.9 MB
Events in quadrant A3,318,509558,616
Events in quadrant B3,914,212557,424
Events in quadrant C5,443,143537,415
Events in quadrant D3,319,013539,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149252
B0162821
C0211391
D0152881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72121872.592901%
B72122473.424847%
C72125537.667776%
D72121261.747088%

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 7227 7213 0 0 0.00% 0.00%
B 7227 7213 47 47 0.65% 0.65%
C 7227 7213 297 297 4.11% 4.12%
D 7227 7213 11 11 0.15% 0.15%

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 14 249 40928 230.91 836 816 173.7
A 8 15 22031 122.13 836 816 173.7
A 0 118 13728 74.33 836 816 173.7
B 2 249 248127 1495.15 840 818 165.4
B 5 70 161010 968.47 840 818 165.4
B 15 204 139129 836.18 840 818 165.4
C 7 220 1466663 7890.82 788 792 185.8
C 1 192 634079 3409.0 788 792 185.8
C 14 223 219846 1179.17 788 792 185.8
D 9 85 99515 509.38 802 777 193.8
D 12 246 39881 201.73 802 777 193.8
D 1 31 38565 194.94 802 777 193.8

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