ASTROSAT CZTI

Data Quality Report

Orbit 28889

Creation date: 2024-06-27T19:57:37.475686
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_064T01_9000004144_28889cztM0_level2.evt modeM0/AS1A10_064T01_9000004144_28889cztM0_level2_quad_clean.evt
Size (bytes)734,512,32092,885,760
Size700.5 MB 88.6 MB
Events in quadrant A3,160,212628,402
Events in quadrant B3,164,491645,093
Events in quadrant C4,033,884601,654
Events in quadrant D11,447,218484,597

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135362
B0134952
C0164642
D0384272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6483100.154250%
B6483200.308499%
C64831261.943545%
D6483356855.036249%

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 7623 6484 0 0 0.00% 0.00%
B 7623 6484 0 0 0.00% 0.00%
C 7623 6483 1 1 0.01% 0.02%
D 7623 6483 3583 3583 47.00% 55.27%

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 6 48618 297.2 801 784 160.9
A 6 16 17208 102.04 801 784 160.9
A 13 254 11899 69.06 801 784 160.9
B 12 111 18429 116.09 800 779 152.0
B 11 111 16543 103.69 800 779 152.0
B 14 111 15131 94.4 800 779 152.0
C 3 233 824174 4558.64 775 781 180.6
C 14 238 138823 764.26 775 781 180.6
C 14 254 20660 110.06 775 781 180.6
D 8 195 8297544 52099.99 670 651 159.2
D 1 52 576181 3614.02 670 651 159.2
D 2 234 23199 141.59 670 651 159.2

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