ASTROSAT CZTI

Data Quality Report

Orbit 16412

Creation date: 2024-06-27T17:22:18.493697
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_069T01_9000002424_16412cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16412cztM0_level2_quad_clean.evt
Size (bytes)489,458,88090,264,960
Size466.8 MB 86.1 MB
Events in quadrant A3,432,884582,909
Events in quadrant B3,450,991609,862
Events in quadrant C3,396,480571,829
Events in quadrant D4,122,014535,697

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142333
B0142732
C0139702
D0164852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62051282.062853%
B6205300.483481%
C6205681.095890%
D62052353.787268%

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 7476 6207 119 119 1.59% 1.92%
B 7476 6207 10 10 0.13% 0.16%
C 7476 6207 11 11 0.15% 0.18%
D 7476 6207 204 204 2.73% 3.29%

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 15 174 439510 2852.7 766 751 153.8
A 9 143 33299 211.62 766 751 153.8
A 15 223 15538 96.14 766 751 153.8
B 10 16 107623 725.66 781 762 147.3
B 15 35 107209 722.85 781 762 147.3
B 0 189 48403 323.52 781 762 147.3
C 3 233 349966 2001.49 746 754 174.5
C 14 238 115468 657.48 746 754 174.5
C 7 247 11660 62.51 746 754 174.5
D 15 0 489191 2734.49 735 714 178.6
D 2 122 486924 2721.8 735 714 178.6
D 12 218 204150 1138.83 735 714 178.6

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