ASTROSAT CZTI

Data Quality Report

Orbit 17073

Creation date: 2024-06-27T17:31:40.267257
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/AS1T03_004T01_9000002532_17073cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17073cztM0_level2_quad_clean.evt
Size (bytes)691,534,080124,983,360
Size659.5 MB 119.2 MB
Events in quadrant A4,668,553780,405
Events in quadrant B4,990,269787,456
Events in quadrant C4,880,901759,003
Events in quadrant D5,697,301736,941

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211501
B0216771
C0212221
D0242851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10414870.835414%
B104141081.037065%
C104141191.142693%
D104141671.603611%

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 10899 10414 0 0 0.00% 0.00%
B 10899 10414 8 8 0.07% 0.08%
C 10899 10415 0 0 0.00% 0.00%
D 10899 10415 64 64 0.59% 0.61%

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 10482 37.89 1213 1184 245.4
A 3 137 8781 30.96 1213 1184 245.4
A 12 194 8733 30.76 1213 1184 245.4
B 0 189 68048 283.86 1213 1180 235.6
B 4 216 54893 228.01 1213 1180 235.6
B 0 197 52251 216.8 1213 1180 235.6
C 14 238 180342 655.04 1167 1175 273.5
C 3 233 142582 516.99 1167 1175 273.5
C 7 247 11467 37.63 1167 1175 273.5
D 1 52 951535 3293.42 1181 1144 288.6
D 10 70 83265 284.58 1181 1144 288.6
D 2 152 81635 278.93 1181 1144 288.6

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