ASTROSAT CZTI

Data Quality Report

Orbit 10317

Creation date: 2024-06-27T15:57:49.378239
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_124T01_9000001486_10317cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10317cztM0_level2_quad_clean.evt
Size (bytes)463,363,20084,277,440
Size441.9 MB 80.4 MB
Events in quadrant A3,214,427532,236
Events in quadrant B3,852,566533,051
Events in quadrant C3,038,081523,941
Events in quadrant D3,477,141500,164

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136632
B0158133
C0135811
D0143751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6630220.331825%
B66291852.790768%
C6630160.241327%
D6630230.346908%

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 8820 6632 0 0 0.00% 0.00%
B 8820 6631 114 114 1.29% 1.72%
C 8820 6632 2 2 0.02% 0.03%
D 8820 6632 13 13 0.15% 0.20%

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 8 15 93093 577.78 796 780 159.8
A 8 5 33576 205.27 796 780 159.8
A 3 1 14434 85.46 796 780 159.8
B 4 239 669928 4439.17 793 772 150.7
B 11 51 57450 376.0 793 772 150.7
B 0 214 26201 168.7 793 772 150.7
C 4 254 18462 98.6 772 776 179.4
C 12 4 5913 28.64 772 776 179.4
C 13 61 5900 28.57 772 776 179.4
D 8 195 322725 1758.23 764 744 183.1
D 1 52 81187 439.27 764 744 183.1
D 2 14 66871 361.1 764 744 183.1

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