ASTROSAT CZTI

Data Quality Report

Orbit 10336

Creation date: 2024-06-27T15:58:04.898140
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/AS1C02_038T02_9000001490_10336cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10336cztM0_level2_quad_clean.evt
Size (bytes)502,263,36071,956,800
Size479.0 MB 68.6 MB
Events in quadrant A4,137,618429,242
Events in quadrant B3,638,473436,273
Events in quadrant C3,218,277431,557
Events in quadrant D3,761,344414,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169213
B0149402
C0138662
D0152422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67081362.027430%
B67082002.981515%
C67081001.490757%
D67081762.623733%

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 7818 6708 0 0 0.00% 0.00%
B 7818 6708 47 47 0.60% 0.70%
C 7818 6708 3 3 0.04% 0.04%
D 7818 6708 46 46 0.59% 0.69%

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 8 15 649663 3827.77 838 819 169.5
A 13 251 246893 1451.68 838 819 169.5
A 0 226 7777 41.05 838 819 169.5
B 4 239 234197 1484.44 833 813 157.2
B 11 51 57041 357.64 833 813 157.2
B 0 214 35667 221.69 833 813 157.2
C 14 234 26140 134.97 818 821 187.6
C 13 61 6059 27.92 818 821 187.6
C 1 3 2656 9.78 818 821 187.6
D 2 33 189172 967.15 814 791 194.8
D 8 195 159295 813.76 814 791 194.8
D 2 14 116547 594.29 814 791 194.8

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