ASTROSAT CZTI

Data Quality Report

Orbit 24262

Creation date: 2024-06-27T19:04:05.157049
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/AS1A07_118T01_9000003586_24262cztM0_level2.evt modeM0/AS1A07_118T01_9000003586_24262cztM0_level2_quad_clean.evt
Size (bytes)532,543,68094,331,520
Size507.9 MB 90.0 MB
Events in quadrant A3,204,214605,139
Events in quadrant B3,325,346621,398
Events in quadrant C3,302,123594,189
Events in quadrant D5,843,543570,183

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137031
B0139931
C0137761
D0218511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6680260.389222%
B6681500.748391%
C6681630.942973%
D66813104.640024%

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 7630 6681 0 0 0.00% 0.00%
B 7631 6682 11 11 0.14% 0.16%
C 7631 6682 0 0 0.00% 0.00%
D 7631 6681 244 244 3.20% 3.65%

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 13 254 9810 53.62 831 816 167.7
A 3 137 7056 37.2 831 816 167.7
A 0 226 6996 36.85 831 816 167.7
B 0 245 32905 202.83 831 813 158.2
B 12 111 18548 112.09 831 813 158.2
B 11 111 16703 100.43 831 813 158.2
C 14 238 129014 676.59 807 813 189.5
C 7 247 20544 104.13 807 813 189.5
C 13 61 5557 25.04 807 813 189.5
D 8 195 1730040 8894.15 805 785 194.4
D 1 52 385142 1976.88 805 785 194.4
D 1 239 304053 1559.81 805 785 194.4

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