ASTROSAT CZTI

Data Quality Report

Orbit 04440

Creation date: 2024-06-27T14:42:06.608085
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_245T01_9000000554_04440cztM0_level2.evt modeM0/AS1G05_245T01_9000000554_04440cztM0_level2_quad_clean.evt
Size (bytes)76,109,7604,268,160
Size72.6 MB 4.1 MB
Events in quadrant A567,4268,252
Events in quadrant B572,2998,109
Events in quadrant C543,9537,516
Events in quadrant D530,1537,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025911
B025920
C025870
D025930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129310.077340%
B129300.000000%
C129300.000000%
D129300.000000%

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 1293 1293 0 0 0.00% 0.00%
B 1293 1293 0 0 0.00% 0.00%
C 1293 1293 0 0 0.00% 0.00%
D 1293 1293 0 0 0.00% 0.00%

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 12 194 1480 41.37 147 144 32.3
A 0 226 1465 40.91 147 144 32.3
A 13 14 563 12.97 147 144 32.3
B 12 111 2760 85.54 146 143 30.6
B 11 111 2169 66.22 146 143 30.6
B 4 48 2115 64.45 146 143 30.6
C 13 61 1095 27.91 138 139 34.3
C 9 247 773 18.51 138 139 34.3
C 9 16 672 15.56 138 139 34.3
D 2 206 4371 121.57 138 134 34.9
D 8 112 2217 59.77 138 134 34.9
D 13 239 1779 47.2 138 134 34.9

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