ASTROSAT CZTI

Data Quality Report

Orbit 10406

Creation date: 2024-06-27T15:58:58.415040
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/AS1G07_057T02_9000001504_10406cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10406cztM0_level2_quad_clean.evt
Size (bytes)90,682,56021,317,760
Size86.5 MB 20.3 MB
Events in quadrant A634,136131,511
Events in quadrant B665,688138,703
Events in quadrant C661,838142,445
Events in quadrant D695,469137,772

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01990017290
B02338420684
C02079318063
D02585623102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02617
B02922
C02816
D02517

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206181
B0206183
C0207185
D0192165

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127220.157233%
B125220.159744%
C132210.075643%
D121340.329761%

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 5769 1844 0 0 0.00% 0.00%
B 5766 1790 0 0 0.00% 0.00%
C 5916 1899 0 0 0.00% 0.00%
D 5928 1646 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 0 226 1562 40.62 163 160 34.5
A 12 194 1303 33.12 163 160 34.5
A 13 253 1147 28.6 163 160 34.5
B 4 239 19300 593.88 161 158 32.2
B 0 219 11216 343.07 161 158 32.2
B 4 81 4033 120.22 161 158 32.2
C 14 234 3105 74.35 168 170 39.5
C 13 61 1251 27.39 168 170 39.5
C 14 67 524 8.97 168 170 39.5
D 8 195 73062 1934.48 153 149 37.7
D 1 52 17432 458.54 153 149 37.7
D 1 20 15887 417.55 153 149 37.7

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