ASTROSAT CZTI

Data Quality Report

Orbit 14219

Creation date: 2024-06-27T16:52:05.552127
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/AS1G08_084T01_9000002100_14219cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14219cztM0_level2_quad_clean.evt
Size (bytes)521,945,280115,715,520
Size497.8 MB 110.4 MB
Events in quadrant A3,588,852764,381
Events in quadrant B3,800,383767,242
Events in quadrant C3,662,351737,166
Events in quadrant D4,248,511716,057

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155552
B0161521
C0156121
D0175161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7475300.401338%
B7475570.762542%
C7475110.147157%
D7475720.963211%

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 7821 7477 1 1 0.01% 0.01%
B 7821 7477 8 8 0.10% 0.11%
C 7821 7477 5 5 0.06% 0.07%
D 7821 7477 46 46 0.59% 0.62%

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 93395 518.78 875 855 178.4
A 12 189 91862 510.19 875 855 178.4
A 8 6 20996 112.91 875 855 178.4
B 0 219 112757 664.93 876 853 168.3
B 4 97 73272 430.31 876 853 168.3
B 0 229 68201 400.18 876 853 168.3
C 3 233 364791 1866.65 839 844 195.0
C 14 234 26682 132.52 839 844 195.0
C 13 61 6112 27.02 839 844 195.0
D 5 222 548881 2443.3 829 810 224.3
D 8 195 301001 1338.25 829 810 224.3
D 2 33 63988 281.65 829 810 224.3

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