ASTROSAT CZTI

Data Quality Report

Orbit 03404

Creation date: 2024-06-27T14:28:33.876751
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_210T01_9000000454_03404cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03404cztM0_level2_quad_clean.evt
Size (bytes)467,432,64075,513,600
Size445.8 MB 72.0 MB
Events in quadrant A3,111,177454,378
Events in quadrant B3,994,211453,637
Events in quadrant C3,535,506450,415
Events in quadrant D3,039,521440,423

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143723
B0166002
C0155392
D0144502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7007721.027544%
B70071151.641216%
C70071081.541316%
D7007240.342515%

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 7677 7009 1 1 0.01% 0.01%
B 7677 7009 1 1 0.01% 0.01%
C 7677 7009 49 49 0.64% 0.70%
D 7677 7009 6 6 0.08% 0.09%

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 0 118 24657 143.12 800 781 166.8
A 0 226 10439 57.89 800 781 166.8
A 12 194 8348 45.36 800 781 166.8
B 15 204 729260 4598.03 814 793 158.4
B 14 167 63176 393.76 814 793 158.4
B 0 182 23942 146.11 814 793 158.4
C 7 220 302061 1650.51 779 780 182.5
C 1 16 146580 798.74 779 780 182.5
C 6 80 14507 75.2 779 780 182.5
D 13 223 33655 174.15 775 753 188.9
D 2 54 23064 118.09 775 753 188.9
D 12 246 16861 85.26 775 753 188.9

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