ASTROSAT CZTI

Data Quality Report

Orbit 11443

Creation date: 2024-06-27T16:12:50.261529
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/AS1A04_021T02_9000001676_11443cztM0_level2.evt modeM0/AS1A04_021T02_9000001676_11443cztM0_level2_quad_clean.evt
Size (bytes)559,609,92073,946,880
Size533.7 MB 70.5 MB
Events in quadrant A3,630,562430,040
Events in quadrant B5,128,527413,519
Events in quadrant C3,334,933467,521
Events in quadrant D4,362,639423,690

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153093
B0199392
C0147952
D0181082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7240891.229282%
B72405888.121547%
C7240600.828729%
D72404636.395028%

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 8701 7243 0 0 0.00% 0.00%
B 8701 7243 307 307 3.53% 4.24%
C 8701 7243 0 0 0.00% 0.00%
D 8701 7242 374 374 4.30% 5.16%

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 1 162 112680 632.9 858 838 176.7
A 1 178 67010 374.46 858 838 176.7
A 1 161 55820 311.14 858 838 176.7
B 4 239 1709492 10593.12 840 818 161.3
B 15 204 43277 263.23 840 818 161.3
B 0 214 25339 152.02 840 818 161.3
C 8 128 10109 46.88 849 856 197.4
C 13 61 6259 27.38 849 856 197.4
C 8 112 6120 26.67 849 856 197.4
D 1 52 1107741 5655.36 804 781 195.7
D 2 120 58939 297.12 804 781 195.7
D 10 253 51290 258.04 804 781 195.7

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