ASTROSAT CZTI

Data Quality Report

Orbit 09914

Creation date: 2024-06-27T15:52:09.204742
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/AS1A03_009T01_9000001412_09914cztM0_level2.evt modeM0/AS1A03_009T01_9000001412_09914cztM0_level2_quad_clean.evt
Size (bytes)20,093,7605,345,280
Size19.2 MB 5.1 MB
Events in quadrant A145,81633,978
Events in quadrant B123,61634,790
Events in quadrant C112,94634,136
Events in quadrant D204,94032,115

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05851
B05260
C05090
D08030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25400.000000%
B25410.393701%
C25400.000000%
D25400.000000%

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 253 253 0 0 0.00% 0.00%
B 254 254 0 0 0.00% 0.00%
C 254 254 0 0 0.00% 0.00%
D 254 254 1 1 0.39% 0.39%

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 15 239 33099 4146.15 28 28 8.0
A 14 254 652 78.23 28 28 8.0
A 0 226 307 34.98 28 28 8.0
B 4 173 4993 643.38 29 29 7.7
B 4 239 2620 335.82 29 29 7.7
B 12 111 525 64.29 29 29 7.7
C 12 4 505 56.81 28 28 8.4
C 8 222 401 44.42 28 28 8.4
C 9 221 315 34.18 28 28 8.4
D 2 16 33433 3792.53 27 26 8.8
D 8 195 31692 3594.89 27 26 8.8
D 2 33 15230 1726.04 27 26 8.8

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