ASTROSAT CZTI

Data Quality Report

Orbit 14216

Creation date: 2024-06-27T16:52:02.591107
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/AS1G08_084T01_9000002100_14216cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14216cztM0_level2_quad_clean.evt
Size (bytes)504,236,160103,982,400
Size480.9 MB 99.2 MB
Events in quadrant A3,035,978695,015
Events in quadrant B3,376,455695,738
Events in quadrant C3,331,186673,480
Events in quadrant D5,108,470654,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129762
B0138841
C0136621
D0196721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61711252.025604%
B61711863.014098%
C6171861.393615%
D61714597.438017%

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 7032 6173 14 14 0.20% 0.23%
B 7032 6173 48 48 0.68% 0.78%
C 7032 6173 0 0 0.00% 0.00%
D 7032 6173 202 202 2.87% 3.27%

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 12 189 69238 455.32 740 725 150.5
A 15 222 49509 324.21 740 725 150.5
A 8 15 33205 215.86 740 725 150.5
B 0 229 233111 1667.2 736 717 139.4
B 4 97 78486 557.92 736 717 139.4
B 0 219 65961 468.06 736 717 139.4
C 3 233 540323 3312.56 712 716 162.9
C 0 207 9208 52.13 712 716 162.9
C 13 61 5217 27.63 712 716 162.9
D 5 222 782041 4649.86 695 677 168.0
D 13 122 725456 4313.13 695 677 168.0
D 8 195 707428 4205.84 695 677 168.0

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