ASTROSAT CZTI

Data Quality Report

Orbit 29900

Creation date: 2024-06-27T20:08:40.981772
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/AS1A10_102T10_9000004282_29900cztM0_level2.evt modeM0/AS1A10_102T10_9000004282_29900cztM0_level2_quad_clean.evt
Size (bytes)123,883,20030,628,800
Size118.1 MB 29.2 MB
Events in quadrant A751,817208,796
Events in quadrant B1,120,559208,654
Events in quadrant C1,023,951199,966
Events in quadrant D755,272202,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030161
B043401
C040731
D030312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1440201.388889%
B1440261.805556%
C1440463.194444%
D143920.138985%

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 1440 1440 0 0 0.00% 0.00%
B 1440 1440 0 0 0.00% 0.00%
C 1440 1440 3 3 0.21% 0.21%
D 1439 1439 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 8 192 13108 325.26 191 187 39.7
A 13 254 2412 56.01 191 187 39.7
A 3 137 1873 42.44 191 187 39.7
B 6 159 382554 10031.83 187 183 38.1
B 12 111 4528 113.99 187 183 38.1
B 11 111 4209 105.63 187 183 38.1
C 3 233 250613 5804.49 179 180 43.1
C 14 238 36980 852.94 179 180 43.1
C 15 208 21933 504.19 179 180 43.1
D 8 195 49294 1092.95 185 180 44.9
D 2 234 4393 93.75 185 180 44.9
D 7 223 4291 91.48 185 180 44.9

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