ASTROSAT CZTI

Data Quality Report

Orbit 33378

Creation date: 2024-06-27T20:48:10.381614
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_064T02_9000004788_33378cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33378cztM0_level2_quad_clean.evt
Size (bytes)2,483,663,040431,328,960
Size2.3 GB 411.3 MB
Events in quadrant A13,490,1332,849,968
Events in quadrant B16,903,7162,868,799
Events in quadrant C15,073,0672,825,418
Events in quadrant D27,834,7072,562,525

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0589087
B0688496
C0617276
D01025276

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05820
B05820
C05820
D05820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28476350.122911%
B284766982.451187%
C284761590.558365%
D2847626589.334176%

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 38094 28482 11 11 0.03% 0.04%
B 38094 28482 401 401 1.05% 1.41%
C 38094 28482 118 118 0.31% 0.41%
D 38094 28482 2364 2364 6.21% 8.30%

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 12 16 352133 521.04 3361 3295 669.5
A 12 194 73057 104.2 3361 3295 669.5
A 15 174 58062 81.8 3361 3295 669.5
B 0 219 1914119 3012.64 3328 3238 634.3
B 5 172 1223406 1923.68 3328 3238 634.3
B 4 170 143933 221.82 3328 3238 634.3
C 15 214 1219231 1640.49 3246 3279 741.2
C 0 10 436108 583.95 3246 3279 741.2
C 15 208 292557 390.28 3246 3279 741.2
D 8 195 5125256 6698.59 3140 3053 764.7
D 2 250 4997916 6532.06 3140 3053 764.7
D 12 218 1613051 2105.48 3140 3053 764.7

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