ASTROSAT CZTI

Data Quality Report

Orbit 19383

Creation date: 2024-06-27T18:02:12.747775
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/AS1A05_104T05_9000002870_19383cztM0_level2.evt modeM0/AS1A05_104T05_9000002870_19383cztM0_level2_quad_clean.evt
Size (bytes)278,818,56024,488,640
Size265.9 MB 23.4 MB
Events in quadrant A1,246,086163,428
Events in quadrant B1,263,877166,323
Events in quadrant C1,248,247157,436
Events in quadrant D4,532,72592,611

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049811
B050541
C049861
D0149971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2221934.187303%
B22211024.592526%
C22211195.357947%
D2221163873.750563%

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 3386 2221 0 0 0.00% 0.00%
B 3386 2221 0 0 0.00% 0.00%
C 3386 2221 0 0 0.00% 0.00%
D 3385 2220 1284 1284 37.93% 57.84%

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 96 3612 49.69 321 315 66.4
A 0 226 2806 37.54 321 315 66.4
A 3 137 2575 34.06 321 315 66.4
B 0 198 10267 156.36 318 309 63.7
B 12 111 7705 116.13 318 309 63.7
B 11 111 6751 101.15 318 309 63.7
C 14 238 47316 637.35 307 309 73.8
C 13 61 2132 24.72 307 309 73.8
C 3 233 1852 20.92 307 309 73.8
D 7 238 2561273 47304.98 218 210 54.1
D 10 66 1081719 19976.38 218 210 54.1
D 1 52 33114 607.76 218 210 54.1

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