ASTROSAT CZTI

Data Quality Report

Orbit 13094

Creation date: 2024-06-27T16:36:27.011903
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_037T01_9000001928_13094cztM0_level2.evt modeM0/AS1G08_037T01_9000001928_13094cztM0_level2_quad_clean.evt
Size (bytes)543,651,84074,260,800
Size518.5 MB 70.8 MB
Events in quadrant A3,374,228474,120
Events in quadrant B6,483,033420,444
Events in quadrant C2,960,981468,782
Events in quadrant D3,222,803449,274

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140122
B0235121
C0129291
D0137601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6245831.329063%
B6245136821.905524%
C6245240.384307%
D6245260.416333%

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 7261 6247 35 35 0.48% 0.56%
B 7261 6247 922 922 12.70% 14.76%
C 7261 6247 7 7 0.10% 0.11%
D 7261 6247 14 14 0.19% 0.22%

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 15 223 169344 1100.23 749 733 153.3
A 12 189 146489 951.09 749 733 153.3
A 15 239 74563 481.76 749 733 153.3
B 4 239 2823386 22019.06 674 657 128.2
B 0 85 740081 5767.97 674 657 128.2
B 0 219 127848 992.17 674 657 128.2
C 15 208 57005 328.86 732 736 171.1
C 8 112 17939 100.54 732 736 171.1
C 14 234 13254 73.16 732 736 171.1
D 8 195 165560 930.15 728 708 177.2
D 14 34 138060 774.99 728 708 177.2
D 1 52 123800 694.53 728 708 177.2

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