ASTROSAT CZTI

Data Quality Report

Orbit 10184

Creation date: 2024-06-27T15:56:05.020478
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/AS1A03_133T01_9000001464_10184cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10184cztM0_level2_quad_clean.evt
Size (bytes)477,685,44071,107,200
Size455.6 MB 67.8 MB
Events in quadrant A3,134,562428,305
Events in quadrant B3,419,404429,149
Events in quadrant C3,022,922430,077
Events in quadrant D4,434,430397,918

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138139
B0144382
C0136014
D0175952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6698520.776351%
B6701670.999851%
C6700360.537313%
D67011792.671243%

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 7651 6702 23 23 0.30% 0.34%
B 7651 6701 23 23 0.30% 0.34%
C 7651 6701 0 0 0.00% 0.00%
D 7651 6701 147 147 1.92% 2.19%

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 15 223 59128 362.88 788 772 160.8
A 15 239 21459 128.64 788 772 160.8
A 0 226 7139 39.59 788 772 160.8
B 4 239 119002 774.76 795 776 152.6
B 0 214 68475 443.64 795 776 152.6
B 11 51 54680 353.24 795 776 152.6
C 14 67 11244 58.74 771 776 178.2
C 13 61 5728 27.79 771 776 178.2
C 14 234 5237 25.03 771 776 178.2
D 1 52 938542 4641.5 746 730 202.0
D 8 195 350453 1730.88 746 730 202.0
D 7 71 99584 489.26 746 730 202.0

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