ASTROSAT CZTI

Data Quality Report

Orbit 17005

Creation date: 2024-06-27T17:30:32.881514
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_143T01_9000002524_17005cztM0_level2.evt modeM0/AS1A05_143T01_9000002524_17005cztM0_level2_quad_clean.evt
Size (bytes)506,116,800104,932,800
Size482.7 MB 100.1 MB
Events in quadrant A3,091,194691,847
Events in quadrant B3,302,538717,452
Events in quadrant C3,467,365683,596
Events in quadrant D5,035,947642,112

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133262
B0139612
C0143762
D0191892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6345330.520095%
B6345701.103231%
C6345741.166273%
D63454887.691095%

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 7571 6347 4 4 0.05% 0.06%
B 7571 6347 3 3 0.04% 0.05%
C 7571 6347 0 0 0.00% 0.00%
D 7571 6347 398 398 5.26% 6.27%

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 15 174 39015 239.2 794 780 159.8
A 0 226 7134 39.75 794 780 159.8
A 12 194 5682 30.67 794 780 159.8
B 0 197 72695 474.44 807 786 151.6
B 3 209 22551 143.6 807 786 151.6
B 12 111 17479 110.14 807 786 151.6
C 3 233 300175 1651.7 778 784 181.3
C 14 238 121211 664.38 778 784 181.3
C 5 112 11938 61.54 778 784 181.3
D 1 52 2138410 11709.23 752 729 182.6
D 2 234 25461 135.47 752 729 182.6
D 10 70 20495 108.27 752 729 182.6

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