ASTROSAT CZTI

Data Quality Report

Orbit 16372

Creation date: 2024-06-27T17:21:43.857254
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_069T04_9000002418_16372cztM0_level2.evt modeM0/AS1A05_069T04_9000002418_16372cztM0_level2_quad_clean.evt
Size (bytes)470,047,68068,999,040
Size448.3 MB 65.8 MB
Events in quadrant A3,295,982421,027
Events in quadrant B3,662,546426,172
Events in quadrant C3,596,263402,661
Events in quadrant D3,249,325396,205

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135653
B0146512
C0144532
D0137392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63461101.733375%
B63462103.309171%
C63461472.316420%
D6346801.260637%

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 7512 6347 0 0 0.00% 0.00%
B 7512 6347 35 35 0.47% 0.55%
C 7512 6348 0 0 0.00% 0.00%
D 7512 6348 24 24 0.32% 0.38%

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 70705 420.21 830 815 166.3
A 3 1 15060 85.65 830 815 166.3
A 15 223 13457 76.01 830 815 166.3
B 10 16 187372 1179.56 830 811 158.2
B 4 173 119715 751.79 830 811 158.2
B 0 189 34941 215.79 830 811 158.2
C 3 233 402154 2185.86 785 791 183.6
C 14 238 123558 668.6 785 791 183.6
C 7 247 8677 42.95 785 791 183.6
D 10 70 126465 648.24 795 774 193.9
D 12 218 65861 335.68 795 774 193.9
D 2 234 22995 114.6 795 774 193.9

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