ASTROSAT CZTI

Data Quality Report

Orbit 20363

Creation date: 2024-06-27T18:14:25.289365
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/AS1A05_163T01_9000003010_20363cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20363cztM0_level2_quad_clean.evt
Size (bytes)171,106,56036,311,040
Size163.2 MB 34.6 MB
Events in quadrant A1,091,255249,787
Events in quadrant B886,303259,931
Events in quadrant C906,763251,658
Events in quadrant D2,180,876213,801

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044871
B037331
C037871
D076361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1686211.245552%
B168660.355872%
C1686241.423488%
D168640423.962040%

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 1686 1686 0 0 0.00% 0.00%
B 1686 1686 0 0 0.00% 0.00%
C 1686 1686 0 0 0.00% 0.00%
D 1686 1686 365 365 21.65% 21.65%

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 14 111 232992 5122.84 222 218 45.4
A 0 226 1924 37.55 222 218 45.4
A 3 137 1659 31.71 222 218 45.4
B 0 198 8361 188.01 223 218 43.3
B 12 111 4994 110.27 223 218 43.3
B 11 111 4442 97.52 223 218 43.3
C 14 238 35235 654.57 223 225 53.5
C 13 61 1515 24.12 223 225 53.5
C 3 233 725 9.35 223 225 53.5
D 1 52 909034 17901.28 204 199 50.8
D 7 238 457095 8999.46 204 199 50.8
D 2 153 38961 763.49 204 199 50.8

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