ASTROSAT CZTI

Data Quality Report

Orbit 03395

Creation date: 2024-06-27T14:28:26.831807
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_210T01_9000000454_03395cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03395cztM0_level2_quad_clean.evt
Size (bytes)223,640,64033,154,560
Size213.3 MB 31.6 MB
Events in quadrant A1,578,167192,601
Events in quadrant B1,799,937193,062
Events in quadrant C1,632,886191,073
Events in quadrant D1,530,000186,669

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069612
B074931
C070861
D070271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3388952.804014%
B33881073.158205%
C3388812.390791%
D3388752.213695%

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 4108 3389 0 0 0.00% 0.00%
B 4108 3389 14 14 0.34% 0.41%
C 4108 3389 3 3 0.07% 0.09%
D 4108 3389 2 2 0.05% 0.06%

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 0 118 9654 107.34 407 397 86.2
A 0 226 5035 53.78 407 397 86.2
A 12 194 4215 44.27 407 397 86.2
B 2 249 97462 1168.98 412 401 83.0
B 15 204 53528 639.85 412 401 83.0
B 4 81 29451 349.87 412 401 83.0
C 14 223 27397 288.38 396 396 93.6
C 1 192 16786 175.05 396 396 93.6
C 9 54 12056 124.53 396 396 93.6
D 2 206 29024 295.26 392 378 97.0
D 5 233 7688 75.34 392 378 97.0
D 10 172 6073 58.7 392 378 97.0

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
Veto Counter