ASTROSAT CZTI

Data Quality Report

Orbit 29206

Creation date: 2024-06-27T20:01:29.235571
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_053T41_9000004194_29206cztM0_level2.evt modeM0/AS1A10_053T41_9000004194_29206cztM0_level2_quad_clean.evt
Size (bytes)456,986,88040,944,960
Size435.8 MB 39.0 MB
Events in quadrant A1,905,579256,214
Events in quadrant B2,175,018259,568
Events in quadrant C7,099,055204,237
Events in quadrant D2,389,984238,356

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080731
B088611
C0238501
D097061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A397950.125660%
B3979330.829354%
C3979199550.138226%
D3979280.703694%

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 3979 3979 0 0 0.00% 0.00%
B 3979 3979 12 12 0.30% 0.30%
C 3979 3979 1518 1518 38.15% 38.15%
D 3979 3979 21 21 0.53% 0.53%

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 7645 71.47 493 483 100.2
A 3 137 4772 42.8 493 483 100.2
A 0 226 3972 34.81 493 483 100.2
B 10 245 102998 1089.55 489 478 94.1
B 0 183 79125 835.83 489 478 94.1
B 0 229 44022 462.77 489 478 94.1
C 3 233 5387177 56488.23 410 412 95.4
C 14 238 69656 726.12 410 412 95.4
C 9 54 27613 285.24 410 412 95.4
D 8 195 357229 3145.62 470 459 113.4
D 1 52 150839 1325.89 470 459 113.4
D 12 233 40075 349.29 470 459 113.4

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