ASTROSAT CZTI

Data Quality Report

Orbit 32350

Creation date: 2024-06-27T20:39:10.191745
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/AS1A10_005T01_9000004700_32350cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32350cztM0_level2_quad_clean.evt
Size (bytes)588,853,44085,547,520
Size561.6 MB 81.6 MB
Events in quadrant A2,954,851588,640
Events in quadrant B6,162,009521,767
Events in quadrant C3,333,509549,599
Events in quadrant D4,987,274521,129

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125152
B0225091
C0136071
D0188391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5851300.512733%
B585172312.356862%
C58511101.880021%
D58513235.520424%

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 7081 5852 0 0 0.00% 0.00%
B 7081 5852 435 435 6.14% 7.43%
C 7081 5852 8 8 0.11% 0.14%
D 7081 5852 302 302 4.26% 5.16%

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 43475 289.12 749 735 147.8
A 13 6 17832 115.66 749 735 147.8
A 13 254 12122 77.03 749 735 147.8
B 6 159 1825459 13808.59 704 686 132.1
B 5 172 1232105 9318.51 704 686 132.1
B 0 190 160840 1211.93 704 686 132.1
C 0 10 133972 800.67 718 725 166.4
C 14 238 121492 725.68 718 725 166.4
C 4 175 88200 525.63 718 725 166.4
D 8 195 1051919 6206.35 715 698 169.4
D 7 38 436486 2572.87 715 698 169.4
D 12 218 338447 1994.05 715 698 169.4

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