ASTROSAT CZTI

Data Quality Report

Orbit 30132

Creation date: 2024-06-27T20:11:18.433897
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_097T01_9000004334_30132cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30132cztM0_level2_quad_clean.evt
Size (bytes)784,146,240105,393,600
Size747.8 MB 100.5 MB
Events in quadrant A3,471,323722,864
Events in quadrant B5,118,153721,448
Events in quadrant C11,267,052595,418
Events in quadrant D3,447,654692,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145752
B0199423
C0380492
D0144702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65771001.520450%
B6576951.444647%
C6576285843.461071%
D6576340.517032%

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 7582 6578 40 40 0.53% 0.61%
B 7581 6577 6 6 0.08% 0.09%
C 7581 6576 1844 1844 24.32% 28.04%
D 7581 6577 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 0 13 349363 2152.87 803 789 161.9
A 8 192 23041 137.43 803 789 161.9
A 13 254 12132 70.06 803 789 161.9
B 6 159 1925480 12540.99 796 774 153.5
B 3 64 45283 290.01 796 774 153.5
B 12 111 18857 117.82 796 774 153.5
C 3 233 8439567 52667.46 689 692 160.2
C 14 238 117030 726.07 689 692 160.2
C 14 254 15286 91.08 689 692 160.2
D 8 195 218453 1140.13 772 754 190.9
D 12 227 162282 845.95 772 754 190.9
D 2 250 40840 209.94 772 754 190.9

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