ASTROSAT CZTI

Data Quality Report

Orbit 29316

Creation date: 2024-06-27T20:02:39.686522
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_050T03_9000004216_29316cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29316cztM0_level2_quad_clean.evt
Size (bytes)394,240,32042,670,080
Size376.0 MB 40.7 MB
Events in quadrant A2,019,072266,515
Events in quadrant B1,901,854271,362
Events in quadrant C4,458,264253,680
Events in quadrant D3,318,396248,176

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081091
B077941
C0157171
D0122091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3555812.278481%
B3555922.587904%
C355590725.513361%
D35553269.170183%

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 3885 3556 9 9 0.23% 0.25%
B 3885 3556 1 1 0.03% 0.03%
C 3885 3556 296 296 7.62% 8.32%
D 3885 3555 198 198 5.10% 5.57%

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 14 235 166437 1722.43 468 457 96.4
A 1 113 19525 197.88 468 457 96.4
A 13 248 17777 179.74 468 457 96.4
B 0 190 44089 478.54 462 449 91.2
B 5 172 21305 228.7 462 449 91.2
B 3 209 11048 116.23 462 449 91.2
C 3 233 2725442 27025.45 424 427 100.8
C 14 238 66167 651.98 424 427 100.8
C 2 114 8806 83.1 424 427 100.8
D 1 52 1271134 11705.88 442 429 108.6
D 8 195 237390 2182.91 442 429 108.6
D 2 250 44451 405.53 442 429 108.6

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