ASTROSAT CZTI

Data Quality Report

Orbit 30352

Creation date: 2024-06-27T20:14:07.181140
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_053T15_9000004364_30352cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30352cztM0_level2_quad_clean.evt
Size (bytes)587,312,64065,162,880
Size560.1 MB 62.1 MB
Events in quadrant A3,181,401401,098
Events in quadrant B4,831,671402,750
Events in quadrant C4,350,006375,026
Events in quadrant D5,016,473373,090

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132151
B0183131
C0165825
D0191051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6031611.011441%
B6031921.525452%
C60304928.159204%
D6031761.260156%

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 7241 6031 4 4 0.06% 0.07%
B 7241 6031 0 0 0.00% 0.00%
C 7240 6030 162 162 2.24% 2.69%
D 7241 6031 9 9 0.12% 0.15%

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 8 192 13406 78.09 820 808 161.3
A 13 254 11157 64.15 820 808 161.3
A 3 137 7874 43.8 820 808 161.3
B 6 159 1658342 10900.87 809 789 152.1
B 12 111 17913 112.62 809 789 152.1
B 11 111 16564 103.74 809 789 152.1
C 3 233 1164077 6706.12 755 761 173.5
C 14 238 156208 896.1 755 761 173.5
C 14 254 43872 248.52 755 761 173.5
D 1 52 1776002 9128.57 777 761 194.5
D 2 250 110847 566.08 777 761 194.5
D 8 195 102123 521.22 777 761 194.5

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