ASTROSAT CZTI

Data Quality Report

Orbit 19147

Creation date: 2024-06-27T17:59:31.542218
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/AS1A05_046T01_9000002838_19147cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19147cztM0_level2_quad_clean.evt
Size (bytes)534,248,64083,387,520
Size509.5 MB 79.5 MB
Events in quadrant A3,261,619523,982
Events in quadrant B5,465,740528,240
Events in quadrant C3,373,045518,528
Events in quadrant D3,642,596505,224

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139132
B0205992
C0141372
D0151422

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6435961.491841%
B64354917.630148%
C64351292.004662%
D64351922.983683%

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 8640 6436 0 0 0.00% 0.00%
B 8640 6436 170 170 1.97% 2.64%
C 8640 6436 0 0 0.00% 0.00%
D 8640 6436 84 84 0.97% 1.31%

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 11 29 7942 42.04 841 824 169.3
A 8 144 7663 40.39 841 824 169.3
A 0 226 7436 39.05 841 824 169.3
B 3 64 1926465 12217.13 832 813 157.6
B 7 220 145859 920.23 832 813 157.6
B 4 216 50871 317.59 832 813 157.6
C 14 238 129277 680.6 811 817 188.7
C 3 233 68768 360.01 811 817 188.7
C 0 207 13576 67.6 811 817 188.7
D 1 52 570156 2891.23 811 790 196.9
D 2 234 28319 139.79 811 790 196.9
D 14 226 7988 36.55 811 790 196.9

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