ASTROSAT CZTI

Data Quality Report

Orbit 03386

Creation date: 2024-06-27T14:28:20.031583
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/AS1G05_112T01_9000000452_03386cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03386cztM0_level2_quad_clean.evt
Size (bytes)465,888,96087,621,120
Size444.3 MB 83.6 MB
Events in quadrant A3,098,773562,131
Events in quadrant B3,292,209570,011
Events in quadrant C4,309,456548,356
Events in quadrant D2,984,397536,390

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132913
B0139152
C0167152
D0132332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6256520.831202%
B6256661.054987%
C62562233.564578%
D6256300.479540%

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 7551 6257 7 7 0.09% 0.11%
B 7551 6257 2 2 0.03% 0.03%
C 7551 6257 202 202 2.68% 3.23%
D 7551 6257 17 17 0.23% 0.27%

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 0 118 108003 693.25 761 745 154.7
A 15 170 32442 204.87 761 745 154.7
A 0 226 17669 109.39 761 745 154.7
B 15 204 178355 1186.35 781 764 149.7
B 14 167 36964 241.82 781 764 149.7
B 0 229 24275 157.06 781 764 149.7
C 1 192 1352182 7804.09 745 753 173.2
C 14 67 21175 117.93 745 753 173.2
C 9 54 16216 89.29 745 753 173.2
D 13 223 129626 724.4 741 723 177.9
D 2 206 18030 97.26 741 723 177.9
D 2 107 12978 68.87 741 723 177.9

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