ASTROSAT CZTI

Data Quality Report

Orbit 33359

Creation date: 2024-06-27T20:47:51.212016
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_058T15_9000004786_33359cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33359cztM0_level2_quad_clean.evt
Size (bytes)1,740,559,680178,056,000
Size1.6 GB 169.8 MB
Events in quadrant A9,712,5971,127,246
Events in quadrant B11,638,5671,109,225
Events in quadrant C9,634,2661,105,509
Events in quadrant D20,678,372971,048

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0393865
B0449554
C0381734
D0723214

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03200
B03200
C03200
D03200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156193562.279275%
B1561910236.549715%
C156194362.791472%
D15619353122.607081%

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 19798 15622 189 189 0.95% 1.21%
B 19798 15621 546 546 2.76% 3.50%
C 19798 15622 391 391 1.97% 2.50%
D 19798 15622 2937 2937 14.83% 18.80%

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 15 169 2554484 6944.82 1842 1805 367.6
A 13 254 25028 63.18 1842 1805 367.6
A 13 6 24642 62.13 1842 1805 367.6
B 0 219 1610460 4686.47 1815 1766 343.3
B 5 172 1171131 3406.61 1815 1766 343.3
B 5 200 384040 1113.65 1815 1766 343.3
C 1 23 1101373 2681.91 1776 1796 410.0
C 15 214 669461 1628.46 1776 1796 410.0
C 0 10 447831 1087.9 1776 1796 410.0
D 8 195 4664924 10903.18 1627 1593 427.7
D 12 218 2405699 5620.96 1627 1593 427.7
D 2 250 2243852 5242.55 1627 1593 427.7

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