ASTROSAT CZTI

Data Quality Report

Orbit 16465

Creation date: 2024-06-27T17:23:05.025050
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/AS1C04_007T02_9000002432_16465cztM0_level2.evt modeM0/AS1C04_007T02_9000002432_16465cztM0_level2_quad_clean.evt
Size (bytes)235,935,36033,949,440
Size225.0 MB 32.4 MB
Events in quadrant A1,646,729198,838
Events in quadrant B1,871,193199,365
Events in quadrant C1,721,101191,119
Events in quadrant D1,665,535188,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072280
B077300
C072310
D074240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3517150.426500%
B3517110.312767%
C3517110.312767%
D3517160.454933%

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 3518 3518 3 3 0.09% 0.09%
B 3518 3518 2 2 0.06% 0.06%
C 3518 3518 1 1 0.03% 0.03%
D 3518 3518 12 12 0.34% 0.34%

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 15 174 62957 732.81 412 403 85.4
A 0 226 3633 37.84 412 403 85.4
A 12 194 3087 31.44 412 403 85.4
B 15 35 152921 1892.89 412 403 80.6
B 0 198 33036 405.0 412 403 80.6
B 4 48 28026 342.83 412 403 80.6
C 3 233 96087 1007.92 396 400 94.9
C 14 238 59809 625.79 396 400 94.9
C 0 207 17257 177.56 396 400 94.9
D 2 33 70064 686.77 402 389 101.5
D 5 222 31342 305.1 402 389 101.5
D 1 52 24383 236.5 402 389 101.5

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