ASTROSAT CZTI

Data Quality Report

Orbit 15115

Creation date: 2024-06-27T17:03:53.110609
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_130T03_9000002224_15115cztM0_level2.evt modeM0/AS1A04_130T03_9000002224_15115cztM0_level2_quad_clean.evt
Size (bytes)660,216,960102,263,040
Size629.6 MB 97.5 MB
Events in quadrant A4,190,466633,270
Events in quadrant B5,801,778638,984
Events in quadrant C5,297,096634,502
Events in quadrant D4,147,598617,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178303
B0224802
C0207362
D0180272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82264855.895940%
B822699212.059324%
C82265196.309263%
D82264014.874787%

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 8832 8228 13 13 0.15% 0.16%
B 8832 8227 442 442 5.00% 5.37%
C 8832 8229 89 89 1.01% 1.08%
D 8832 8228 15 15 0.17% 0.18%

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 12 189 82895 384.13 1036 1008 213.2
A 15 69 79230 366.94 1036 1008 213.2
A 13 248 26443 119.31 1036 1008 213.2
B 10 245 1433751 7295.35 1006 979 196.4
B 3 64 281237 1427.01 1006 979 196.4
B 0 229 55168 275.92 1006 979 196.4
C 4 254 751561 3191.69 1010 1012 235.2
C 3 233 583449 2476.8 1010 1012 235.2
C 7 247 9060 34.22 1010 1012 235.2
D 2 14 107545 423.25 1027 996 251.7
D 2 152 44065 171.09 1027 996 251.7
D 2 234 34028 131.21 1027 996 251.7

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