ASTROSAT CZTI

Data Quality Report

Orbit 04547

Creation date: 2024-06-27T14:43:39.176485
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_233T10_9000000570_04547cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04547cztM0_level2_quad_clean.evt
Size (bytes)678,335,04080,490,240
Size646.9 MB 76.8 MB
Events in quadrant A9,863,754425,972
Events in quadrant B3,404,199528,582
Events in quadrant C3,449,432523,092
Events in quadrant D3,388,265508,420

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338192
B0144641
C0148031
D0147131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462295145.666976%
B64622273.512844%
C64621382.135562%
D64622013.110492%

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 7277 6462 1790 1790 24.60% 27.70%
B 7277 6463 47 47 0.65% 0.73%
C 7277 6463 30 30 0.41% 0.46%
D 7277 6463 61 61 0.84% 0.94%

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 13 7516593 61940.51 592 579 121.3
A 15 234 15663 124.31 592 579 121.3
A 13 251 14093 111.37 592 579 121.3
B 10 16 298810 2105.72 744 726 141.6
B 14 167 97891 686.39 744 726 141.6
B 15 204 44651 310.29 744 726 141.6
C 14 48 618794 3720.04 717 719 166.1
C 9 247 20049 116.34 717 719 166.1
C 9 54 10522 59.0 717 719 166.1
D 13 235 174200 1013.26 713 691 171.2
D 1 20 172735 1004.7 713 691 171.2
D 9 35 145037 842.95 713 691 171.2

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