ASTROSAT CZTI

Data Quality Report

Orbit 28196

Creation date: 2024-06-27T19:49:02.725137
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_045T09_9000004072_28196cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28196cztM0_level2_quad_clean.evt
Size (bytes)326,214,72063,152,640
Size311.1 MB 60.2 MB
Events in quadrant A1,976,479422,247
Events in quadrant B1,979,243433,737
Events in quadrant C2,145,393404,275
Events in quadrant D3,518,502382,839

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082290
B082380
C087740
D0130930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3805411.077530%
B3793431.133667%
C37971102.897024%
D37832185.762622%

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 5338 3912 0 0 0.00% 0.00%
B 5338 3899 0 0 0.00% 0.00%
C 5338 3892 40 40 0.75% 1.03%
D 5337 3895 187 187 3.50% 4.80%

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 12 16 19146 181.89 506 497 102.5
A 12 194 6301 56.61 506 497 102.5
A 13 254 5283 46.68 506 497 102.5
B 12 111 11286 112.97 502 490 95.6
B 11 111 10537 105.14 502 490 95.6
B 14 111 10209 101.7 502 490 95.6
C 3 233 203951 1823.32 478 483 111.6
C 14 238 77901 693.76 478 483 111.6
C 13 61 3153 23.93 478 483 111.6
D 1 52 1076417 9503.16 473 461 113.2
D 5 222 612119 5402.34 473 461 113.2
D 8 195 28801 250.31 473 461 113.2

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