ASTROSAT CZTI

Data Quality Report

Orbit 23360

Creation date: 2024-06-27T18:53:17.874435
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/AS1A07_135T01_9000003452_23360cztM0_level2.evt modeM0/AS1A07_135T01_9000003452_23360cztM0_level2_quad_clean.evt
Size (bytes)491,909,76080,801,280
Size469.1 MB 77.1 MB
Events in quadrant A3,309,266511,385
Events in quadrant B3,413,519517,715
Events in quadrant C4,052,709494,518
Events in quadrant D3,700,846489,631

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136282
B0138642
C0161252
D0148482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6202370.596582%
B6202480.773944%
C62031262.031275%
D6203580.935031%

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 7457 6202 0 0 0.00% 0.00%
B 7457 6202 9 9 0.12% 0.15%
C 7458 6204 9 9 0.12% 0.15%
D 7458 6203 36 36 0.48% 0.58%

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 2 79 9002 48.16 856 841 169.5
A 13 254 8909 47.61 856 841 169.5
A 0 226 7445 38.97 856 841 169.5
B 0 189 70583 443.5 841 822 157.3
B 0 190 20971 128.1 841 822 157.3
B 12 111 18515 112.48 841 822 157.3
C 0 239 627875 3315.2 821 832 189.1
C 14 238 132215 694.63 821 832 189.1
C 7 247 57318 298.64 821 832 189.1
D 1 52 190334 933.59 839 818 203.0
D 12 233 127213 622.64 839 818 203.0
D 9 85 124227 607.93 839 818 203.0

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