ASTROSAT CZTI

Data Quality Report

Orbit 20074

Creation date: 2024-06-27T18:10:55.097084
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/AS1T03_120T01_9000002990_20074cztM0_level2.evt modeM0/AS1T03_120T01_9000002990_20074cztM0_level2_quad_clean.evt
Size (bytes)426,510,72078,341,760
Size406.8 MB 74.7 MB
Events in quadrant A2,551,222549,633
Events in quadrant B2,531,050552,433
Events in quadrant C2,206,660539,635
Events in quadrant D5,339,132430,979

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101921
B0101791
C091691
D0187911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42471152.707794%
B4247701.648222%
C4248310.729755%
D4248109425.753296%

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 4247 4247 70 70 1.65% 1.65%
B 4247 4247 37 37 0.87% 0.87%
C 4248 4248 0 0 0.00% 0.00%
D 4248 4248 1107 1107 26.06% 26.06%

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 14 238 369216 3299.6 558 550 111.7
A 4 2 18540 161.01 558 550 111.7
A 14 254 7891 65.7 558 550 111.7
B 7 220 156179 1487.67 556 546 104.6
B 10 245 80231 761.7 556 546 104.6
B 4 80 41541 391.87 556 546 104.6
C 14 238 87861 701.66 541 547 124.4
C 3 233 8314 62.42 541 547 124.4
C 13 61 3756 25.79 541 547 124.4
D 7 38 2547878 21734.12 487 476 117.2
D 1 52 826823 7050.29 487 476 117.2
D 12 218 82792 702.31 487 476 117.2

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