ASTROSAT CZTI

Data Quality Report

Orbit 01412

Creation date: 2024-06-27T14:12:18.250297
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/AS1G04_003T01_9000000234_01412cztM0_level2.evt modeM0/AS1G04_003T01_9000000234_01412cztM0_level2_quad_clean.evt
Size (bytes)107,835,8408,720,640
Size102.8 MB 8.3 MB
Events in quadrant A1,049,86952,647
Events in quadrant B835,83955,907
Events in quadrant C682,30753,968
Events in quadrant D655,84652,376

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035370
B028920
C024350
D023590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A589172.886248%
B58910.169779%
C58900.000000%
D58900.000000%

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 589 589 161 161 27.33% 27.33%
B 589 589 37 37 6.28% 6.28%
C 589 589 8 8 1.36% 1.36%
D 589 589 3 3 0.51% 0.51%

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 15 127 244531 5059.83 191 193 48.3
A 4 32 64139 1324.22 191 193 48.3
A 12 251 4280 84.63 191 193 48.3
B 12 52 53801 1108.09 191 193 48.4
B 6 53 19479 398.65 191 193 48.4
B 15 22 17364 354.93 191 193 48.4
C 15 241 24312 492.67 167 172 49.0
C 3 111 2322 43.88 167 172 49.0
C 3 79 2062 38.57 167 172 49.0
D 13 138 16228 296.49 166 170 54.2
D 13 205 7244 130.61 166 170 54.2
D 2 88 3466 60.86 166 170 54.2

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