ASTROSAT CZTI

Data Quality Report

Orbit 34020

Creation date: 2024-06-27T20:55:30.044321
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/AS1A06_003T04_9000004866_34020cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34020cztM0_level2_quad_clean.evt
Size (bytes)615,150,72083,033,280
Size586.7 MB 79.2 MB
Events in quadrant A2,496,433578,661
Events in quadrant B6,469,638521,361
Events in quadrant C3,258,852555,137
Events in quadrant D6,043,389484,359

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107783
B0227872
C0128592
D0216122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A534960.112170%
B5349130924.471864%
C5349931.738643%
D534991417.087306%

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 7112 5350 0 0 0.00% 0.00%
B 7112 5350 1089 1089 15.31% 20.36%
C 7112 5350 64 64 0.90% 1.20%
D 7112 5350 925 925 13.01% 17.29%

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 10 83 17503 132.07 635 623 127.8
A 13 6 13718 102.46 635 623 127.8
A 13 254 10295 75.68 635 623 127.8
B 5 31 1425026 12931.63 574 560 110.2
B 5 172 1222064 11089.09 574 560 110.2
B 5 15 600446 5445.9 574 560 110.2
C 3 233 338701 2417.71 604 608 139.8
C 15 214 253226 1806.48 604 608 139.8
C 0 10 240565 1715.94 604 608 139.8
D 8 230 1754223 11457.39 562 553 153.1
D 8 195 1041860 6803.25 562 553 153.1
D 13 249 332614 2169.48 562 553 153.1

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