ASTROSAT CZTI

Data Quality Report

Orbit 14803

Creation date: 2024-06-27T16:59:53.046201
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/AS1A04_022T02_9000002184_14803cztM0_level2.evt modeM0/AS1A04_022T02_9000002184_14803cztM0_level2_quad_clean.evt
Size (bytes)95,791,68028,823,040
Size91.4 MB 27.5 MB
Events in quadrant A688,373196,106
Events in quadrant B723,763196,617
Events in quadrant C758,612190,929
Events in quadrant D635,677188,032

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286919
B029938
C030785
D028076

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118
B0105
C0116
D0106

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271
B0282
C0271
D0282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134750.371195%
B1353191.404287%
C135210.073964%
D135140.296077%

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 1355 1353 1 1 0.07% 0.07%
B 1355 1355 10 10 0.74% 0.74%
C 1355 1355 0 0 0.00% 0.00%
D 1355 1354 2 2 0.15% 0.15%

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 4 2 15291 419.39 171 168 36.1
A 12 189 10083 274.96 171 168 36.1
A 7 32 2175 55.66 171 168 36.1
B 10 16 37523 1106.38 169 165 33.8
B 0 214 10916 318.4 169 165 33.8
B 3 64 8707 252.98 169 165 33.8
C 3 233 120095 3082.52 162 163 38.9
C 8 128 3387 82.86 162 163 38.9
C 8 112 1767 41.23 162 163 38.9
D 13 249 9399 231.99 161 157 39.8
D 10 70 8475 208.8 161 157 39.8
D 2 234 4319 104.47 161 157 39.8

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