ASTROSAT CZTI

Data Quality Report

Orbit 28243

Creation date: 2024-06-27T19:49:35.020715
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_067T01_9000004076_28243cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28243cztM0_level2_quad_clean.evt
Size (bytes)512,657,28095,869,440
Size488.9 MB 91.4 MB
Events in quadrant A3,347,161624,283
Events in quadrant B3,316,677630,325
Events in quadrant C3,365,661598,212
Events in quadrant D5,036,001577,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140730
B0139510
C0140990
D0193420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6783971.430046%
B6783931.371075%
C67821011.489236%
D67824096.030669%

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 7643 6783 1 1 0.01% 0.01%
B 7643 6783 1 1 0.01% 0.01%
C 7642 6782 0 0 0.00% 0.00%
D 7642 6782 338 338 4.42% 4.98%

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 12 96 75267 438.77 847 830 169.6
A 13 254 10239 55.46 847 830 169.6
A 3 137 8243 43.7 847 830 169.6
B 12 111 20070 120.08 835 812 160.4
B 11 111 18461 110.04 835 812 160.4
B 14 111 17226 102.34 835 812 160.4
C 14 238 129638 684.54 806 809 188.2
C 3 233 46137 240.85 806 809 188.2
C 2 16 44304 231.11 806 809 188.2
D 1 52 1498278 7804.3 805 785 191.9
D 8 195 280388 1457.17 805 785 191.9
D 7 238 135768 703.47 805 785 191.9

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