ASTROSAT CZTI

Data Quality Report

Orbit 07122

Creation date: 2024-06-27T15:15:52.065073
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/AS1A02_090T01_9000000970_07122cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07122cztM0_level2_quad_clean.evt
Size (bytes)211,512,96017,904,960
Size201.7 MB 17.1 MB
Events in quadrant A1,341,85685,859
Events in quadrant B1,983,94587,974
Events in quadrant C1,325,61986,791
Events in quadrant D1,562,34280,949

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057731
B076191
C057061
D064611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2794190.680029%
B27941846.585540%
C279430.107373%
D2794582.075877%

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 2794 2794 0 0 0.00% 0.00%
B 2794 2794 154 154 5.51% 5.51%
C 2794 2794 0 0 0.00% 0.00%
D 2794 2794 49 49 1.75% 1.75%

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 12984 180.68 341 335 70.0
A 14 238 6547 88.73 341 335 70.0
A 0 226 3178 40.61 341 335 70.0
B 3 220 613148 9336.5 343 337 65.6
B 4 81 28469 428.61 343 337 65.6
B 10 246 7749 112.93 343 337 65.6
C 9 68 12563 155.78 334 337 78.5
C 4 254 6124 73.74 334 337 78.5
C 7 247 3651 42.23 334 337 78.5
D 2 216 242223 3005.1 324 314 80.5
D 8 195 87327 1080.91 324 314 80.5
D 13 137 9258 111.11 324 314 80.5

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