ASTROSAT CZTI

Data Quality Report

Orbit 19586

Creation date: 2024-06-27T18:04:29.766492
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_115T01_9000002914_19586cztM0_level2.evt modeM0/AS1T03_115T01_9000002914_19586cztM0_level2_quad_clean.evt
Size (bytes)95,981,76023,751,360
Size91.5 MB 22.7 MB
Events in quadrant A691,821154,653
Events in quadrant B693,965158,635
Events in quadrant C699,187152,424
Events in quadrant D721,287146,291

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029631
B029591
C029961
D030832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1437130.904662%
B1437161.113431%
C1437151.043841%
D1436312.158774%

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 1437 1437 0 0 0.00% 0.00%
B 1437 1437 0 0 0.00% 0.00%
C 1437 1437 0 0 0.00% 0.00%
D 1436 1436 24 24 1.67% 1.67%

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 13 254 2280 55.57 179 175 37.9
A 0 226 1593 37.43 179 175 37.9
A 3 137 1440 33.39 179 175 37.9
B 12 111 4102 109.36 175 172 35.9
B 11 111 3815 101.37 175 172 35.9
B 14 111 3177 83.62 175 172 35.9
C 14 238 26083 640.27 167 167 40.5
C 9 221 11511 280.26 167 167 40.5
C 3 233 5516 132.15 167 167 40.5
D 12 0 54460 1289.67 167 162 42.1
D 1 52 28948 683.72 167 162 42.1
D 7 238 4457 102.01 167 162 42.1

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