ASTROSAT CZTI

Data Quality Report

Orbit 09334

Creation date: 2024-06-27T15:44:37.118267
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/AS1G07_022T01_9000001322_09334cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09334cztM0_level2_quad_clean.evt
Size (bytes)317,819,52052,557,120
Size303.1 MB 50.1 MB
Events in quadrant A2,805,476333,157
Events in quadrant B2,194,522331,478
Events in quadrant C2,320,641317,858
Events in quadrant D2,022,028316,551

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111372
B091391
C096711
D089241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4139912.198599%
B4139591.425465%
C41391062.561005%
D4139521.256342%

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 5364 4140 15 15 0.28% 0.36%
B 5364 4140 3 3 0.06% 0.07%
C 5364 4140 51 51 0.95% 1.23%
D 5364 4140 16 16 0.30% 0.39%

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 655476 6344.65 507 496 103.2
A 13 251 112691 1086.81 507 496 103.2
A 1 162 33697 321.61 507 496 103.2
B 0 219 130208 1333.2 510 497 97.3
B 0 214 31033 313.86 510 497 97.3
B 4 173 16243 161.84 510 497 97.3
C 4 254 428079 3821.34 483 485 111.9
C 13 61 3701 28.74 483 485 111.9
C 4 238 2930 21.85 483 485 111.9
D 7 71 87320 684.81 484 471 126.8
D 1 52 30840 239.46 484 471 126.8
D 2 152 28957 224.62 484 471 126.8

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