ASTROSAT CZTI

Data Quality Report

Orbit 32994

Creation date: 2024-06-27T20:44:22.496112
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/AS1A11_080T01_9000004756_32994cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_32994cztM0_level2_quad_clean.evt
Size (bytes)591,500,16084,401,280
Size564.1 MB 80.5 MB
Events in quadrant A2,780,692572,105
Events in quadrant B3,474,029560,941
Events in quadrant C3,060,533553,060
Events in quadrant D8,189,403447,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121803
B0142352
C0130222
D0284582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A605030.049587%
B60501141.884298%
C6050370.611570%
D6050141923.454545%

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 8824 6052 0 0 0.00% 0.00%
B 8824 6052 84 84 0.95% 1.39%
C 8824 6052 21 21 0.24% 0.35%
D 8824 6052 1372 1372 15.55% 22.67%

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 13 254 11315 73.52 714 700 144.4
A 15 47 9215 58.98 714 700 144.4
A 3 137 6371 39.28 714 700 144.4
B 5 172 487559 3624.14 707 692 134.3
B 0 219 86049 635.38 707 692 134.3
B 15 85 36735 268.3 707 692 134.3
C 0 10 241730 1489.24 689 696 161.8
C 1 23 58267 355.7 689 696 161.8
C 14 67 30083 181.57 689 696 161.8
D 12 227 2209634 13382.79 621 610 165.1
D 8 195 1877318 11369.54 621 610 165.1
D 12 6 420208 2542.02 621 610 165.1

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