ASTROSAT CZTI

Data Quality Report

Orbit 07536

Creation date: 2024-06-27T15:20:57.585164
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/AS1G06_076T01_9000001038_07536cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07536cztM0_level2_quad_clean.evt
Size (bytes)412,701,12081,630,720
Size393.6 MB 77.8 MB
Events in quadrant A2,824,249519,992
Events in quadrant B2,902,669522,547
Events in quadrant C2,807,620508,690
Events in quadrant D3,544,468490,042

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125352
B0126691
C0125861
D0148211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173360.583185%
B6173360.583185%
C6173350.566985%
D61731722.786328%

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 7208 6173 0 0 0.00% 0.00%
B 7208 6174 2 2 0.03% 0.03%
C 7208 6174 1 1 0.01% 0.02%
D 7208 6173 126 126 1.75% 2.04%

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 14 13348 84.43 731 715 149.6
A 0 226 6861 41.08 731 715 149.6
A 12 194 6310 37.39 731 715 149.6
B 0 213 39530 281.11 731 713 138.1
B 12 111 14082 96.82 731 713 138.1
B 11 111 11433 77.63 731 713 138.1
C 8 229 11086 62.7 713 716 165.4
C 1 16 11010 62.24 713 716 165.4
C 13 61 5565 29.32 713 716 165.4
D 5 184 389701 2257.24 708 685 172.3
D 2 152 236524 1368.44 708 685 172.3
D 12 233 89458 515.1 708 685 172.3

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