ASTROSAT CZTI

Data Quality Report

Orbit 04445

Creation date: 2024-06-27T14:42:05.023986
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/AS1G05_213T02_9000000558_04445cztM0_level2.evt modeM0/AS1G05_213T02_9000000558_04445cztM0_level2_quad_clean.evt
Size (bytes)181,569,60026,985,600
Size173.2 MB 25.7 MB
Events in quadrant A1,386,419153,621
Events in quadrant B1,311,794155,681
Events in quadrant C1,298,537155,830
Events in quadrant D1,306,470148,324

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059380
B057010
C057390
D058070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2845100.351494%
B284510.035149%
C284520.070299%
D284510.035149%

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 2845 2845 5 5 0.18% 0.18%
B 2845 2845 0 0 0.00% 0.00%
C 2845 2845 2 2 0.07% 0.07%
D 2845 2845 4 4 0.14% 0.14%

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 50 79034 1129.24 336 330 69.7
A 0 13 9112 126.0 336 330 69.7
A 0 226 3497 45.44 336 330 69.7
B 12 111 5731 82.22 338 330 65.7
B 11 111 4736 67.07 338 330 65.7
B 8 61 3342 45.85 338 330 65.7
C 9 247 9514 119.93 327 329 76.6
C 0 239 3106 36.26 327 329 76.6
C 9 16 2952 34.25 327 329 76.6
D 9 35 22860 284.17 326 317 79.3
D 4 95 21084 261.78 326 317 79.3
D 7 223 11249 137.8 326 317 79.3

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