ASTROSAT CZTI

Data Quality Report

Orbit 14986

Creation date: 2024-06-27T17:02:11.216913
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/AS1T02_056T01_9000002210_14986cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14986cztM0_level2_quad_clean.evt
Size (bytes)506,232,00094,550,400
Size482.8 MB 90.2 MB
Events in quadrant A3,729,938604,892
Events in quadrant B4,216,812599,604
Events in quadrant C3,400,446594,659
Events in quadrant D3,509,113576,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156722
B0170031
C0143961
D0153671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6998410.585882%
B69982253.215204%
C6998200.285796%
D6998901.286082%

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 7399 7000 0 0 0.00% 0.00%
B 7399 7000 108 108 1.46% 1.54%
C 7399 7000 0 0 0.00% 0.00%
D 7399 7000 50 50 0.68% 0.71%

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 12 189 298834 1768.2 829 808 168.5
A 1 162 109733 646.26 829 808 168.5
A 1 178 47751 278.52 829 808 168.5
B 0 245 289156 1824.08 818 795 158.1
B 0 229 232990 1468.8 818 795 158.1
B 7 220 201116 1267.17 818 795 158.1
C 3 233 255851 1362.6 803 806 187.2
C 13 61 5899 27.21 803 806 187.2
C 0 207 5512 25.14 803 806 187.2
D 7 38 149225 754.56 806 781 196.7
D 4 239 141202 713.78 806 781 196.7
D 7 223 57656 289.1 806 781 196.7

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