ASTROSAT CZTI

Data Quality Report

Orbit 06334

Creation date: 2024-06-27T15:05:47.972487
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_151T01_9000000836_06334cztM0_level2.evt modeM0/AS1G06_151T01_9000000836_06334cztM0_level2_quad_clean.evt
Size (bytes)2,136,582,720274,694,400
Size2.0 GB 262.0 MB
Events in quadrant A11,652,1111,726,908
Events in quadrant B13,867,6621,696,749
Events in quadrant C10,806,0961,712,940
Events in quadrant D26,752,0451,518,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0510076
B0576615
C0494635
D0962165

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04940
B04940
C04940
D04940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A241842561.058551%
B241848833.651174%
C24184810.334932%
D24184371015.340721%

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 27219 24190 94 94 0.35% 0.39%
B 27219 24190 486 486 1.79% 2.01%
C 27219 24190 6 6 0.02% 0.02%
D 27219 24190 3108 3108 11.42% 12.85%

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 14 111 400755 700.1 2793 2730 568.5
A 13 251 288964 503.47 2793 2730 568.5
A 8 15 180068 311.93 2793 2730 568.5
B 3 64 2851689 5362.79 2783 2716 531.2
B 4 81 82888 150.91 2783 2716 531.2
B 15 204 78334 142.34 2783 2716 531.2
C 10 22 66676 101.52 2714 2725 629.9
C 9 16 59542 90.2 2714 2725 629.9
C 9 54 39269 58.01 2714 2725 629.9
D 12 221 6080040 9771.98 2534 2458 621.9
D 4 95 5684562 9136.1 2534 2458 621.9
D 12 220 3567296 5731.8 2534 2458 621.9

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