ASTROSAT CZTI

Data Quality Report

Orbit 08929

Creation date: 2024-06-27T15:39:05.900253
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/AS1A03_092T01_9000001240_08929cztM0_level2.evt modeM0/AS1A03_092T01_9000001240_08929cztM0_level2_quad_clean.evt
Size (bytes)466,678,08076,412,160
Size445.1 MB 72.9 MB
Events in quadrant A3,830,674467,736
Events in quadrant B3,203,910477,219
Events in quadrant C3,105,785471,027
Events in quadrant D3,563,865456,712

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153896
B0134112
C0133172
D0145172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63131171.853319%
B6314931.472917%
C6314921.457080%
D6314861.362053%

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 7549 6314 24 24 0.32% 0.38%
B 7549 6314 3 3 0.04% 0.05%
C 7549 6314 0 0 0.00% 0.00%
D 7549 6314 11 11 0.15% 0.17%

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 5 630769 3864.58 814 799 163.0
A 15 174 38593 231.85 814 799 163.0
A 13 164 13183 75.97 814 799 163.0
B 12 111 15971 99.39 818 800 152.6
B 0 229 13424 82.71 818 800 152.6
B 11 111 12817 78.73 818 800 152.6
C 13 61 6007 28.65 795 801 181.7
C 8 222 2037 6.8 795 801 181.7
C 3 202 2031 6.77 795 801 181.7
D 8 195 242729 1265.35 793 776 191.2
D 1 52 131286 682.53 793 776 191.2
D 5 239 78840 408.25 793 776 191.2

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