ASTROSAT CZTI

Data Quality Report

Orbit 03309

Creation date: 2024-06-27T14:27:24.747613
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/AS1G05_241T02_9000000448_03309cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03309cztM0_level2_quad_clean.evt
Size (bytes)520,790,40071,737,920
Size496.7 MB 68.4 MB
Events in quadrant A3,880,761415,354
Events in quadrant B4,934,970434,219
Events in quadrant C3,173,608436,742
Events in quadrant D3,327,970418,409

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161433
B0191362
C0140682
D0148782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67022754.103253%
B67024036.013130%
C6702390.581916%
D6702911.357804%

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 7602 6703 183 183 2.41% 2.73%
B 7602 6703 191 191 2.51% 2.85%
C 7602 6703 16 16 0.21% 0.24%
D 7602 6703 67 67 0.88% 1.00%

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 0 50 776105 4811.37 779 760 161.1
A 8 15 61854 379.12 779 760 161.1
A 0 118 33332 202.12 779 760 161.1
B 15 204 1366550 8951.05 781 762 152.6
B 3 0 489481 3202.95 781 762 152.6
B 2 249 34604 221.79 781 762 152.6
C 6 80 103020 560.66 765 769 182.4
C 1 192 55640 300.87 765 769 182.4
C 12 4 9066 45.49 765 769 182.4
D 13 223 280485 1509.92 762 739 185.3
D 12 233 74639 398.87 762 739 185.3
D 13 239 41018 217.4 762 739 185.3

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