ASTROSAT CZTI

Data Quality Report

Orbit 10344

Creation date: 2024-06-27T15:58:09.663677
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/AS1C02_038T02_9000001490_10344cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10344cztM0_level2_quad_clean.evt
Size (bytes)1,634,172,480293,653,440
Size1.5 GB 280.0 MB
Events in quadrant A11,150,0671,829,078
Events in quadrant B12,444,9211,848,773
Events in quadrant C10,446,0221,840,676
Events in quadrant D13,854,9431,751,144

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04780
B04780
C04780
D04780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490545
B0531554
C0477424
D0567824

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23616800.338753%
B236163711.570969%
C23616480.203252%
D236164471.892785%

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 26741 23620 1 1 0.00% 0.00%
B 26741 23619 198 198 0.74% 0.84%
C 26741 23620 3 3 0.01% 0.01%
D 26741 23620 370 370 1.38% 1.57%

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 15 427222 773.67 2712 2650 548.8
A 13 251 217275 391.1 2712 2650 548.8
A 8 5 66326 116.03 2712 2650 548.8
B 4 239 1275682 2475.85 2717 2645 514.2
B 11 51 218904 420.59 2717 2645 514.2
B 0 219 178402 341.82 2717 2645 514.2
C 14 234 29592 43.99 2664 2672 612.0
C 13 61 19994 28.3 2664 2672 612.0
C 8 128 14560 19.42 2664 2672 612.0
D 2 33 1480115 2357.95 2623 2548 626.6
D 8 195 1391243 2216.13 2623 2548 626.6
D 13 104 229335 361.91 2623 2548 626.6

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