ASTROSAT CZTI

Data Quality Report

Orbit 35045

Creation date: 2022-03-23T01:07:32.561978
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_123T17_9000005018_35045cztM0_level2.evt modeM0/AS1A10_123T17_9000005018_35045cztM0_level2_quad_clean.evt
Size (bytes)191,013,12049,656,960
Size182.2 MB 47.4 MB
Events in quadrant A1,162,378340,732
Events in quadrant B1,269,022344,753
Events in quadrant C1,283,581343,997
Events in quadrant D1,919,966316,429

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048711
B051271
C051621
D072911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A218540.183066%
B2185281.281465%
C2185221.006865%
D2185833.798627%

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 2185 2185 0 0 0.00% 0.00%
B 2185 2185 23 23 1.05% 1.05%
C 2185 2185 12 12 0.55% 0.55%
D 2185 2185 73 73 3.34% 3.34%

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 10 83 36705 642.7 282 278 56.7
A 15 169 23431 408.5 282 278 56.7
A 13 6 7346 124.7 282 278 56.7
B 5 172 140737 2629.55 279 272 53.4
B 0 190 20326 375.42 279 272 53.4
B 4 232 12249 224.21 279 272 53.4
C 15 214 92604 1407.1 284 287 65.6
C 0 10 72393 1099.04 284 287 65.6
C 14 67 6696 97.69 284 287 65.6
D 8 195 467258 6734.65 280 273 69.3
D 5 223 143559 2066.41 280 273 69.3
D 12 227 75614 1086.53 280 273 69.3

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