ASTROSAT CZTI

Data Quality Report

Orbit 09380

Creation date: 2024-06-27T15:45:18.239514
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_057T01_9000001330_09380cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09380cztM0_level2_quad_clean.evt
Size (bytes)468,092,16094,098,240
Size446.4 MB 89.7 MB
Events in quadrant A3,983,835609,185
Events in quadrant B3,084,631621,653
Events in quadrant C2,838,584600,857
Events in quadrant D3,841,524578,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01616093
B01338779
C01305876
D01557792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01282
C01280
D01282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63031081.713470%
B6301741.174417%
C6302210.333228%
D6299430.682648%

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 6336 52 52 0.69% 0.82%
B 7549 6336 3 3 0.04% 0.05%
C 7549 6340 1 1 0.01% 0.02%
D 7549 6338 7 7 0.09% 0.11%

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 976725 6378.99 752 735 153.0
A 13 251 44350 285.06 752 735 153.0
A 5 16 26405 167.78 752 735 153.0
B 0 219 53011 362.68 763 747 144.1
B 8 234 30624 207.33 763 747 144.1
B 12 111 14738 97.09 763 747 144.1
C 13 61 5628 29.42 725 728 166.6
C 10 22 5294 27.41 725 728 166.6
C 8 222 2243 9.09 725 728 166.6
D 1 52 897819 4847.31 716 695 185.1
D 2 136 65167 348.35 716 695 185.1
D 8 195 57901 309.09 716 695 185.1

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