ASTROSAT CZTI

Data Quality Report

Orbit 28533

Creation date: 2024-06-27T19:52:57.633992
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/AS1A10_058T09_9000004100_28533cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28533cztM0_level2_quad_clean.evt
Size (bytes)617,376,96092,246,400
Size588.8 MB 88.0 MB
Events in quadrant A3,518,252612,531
Events in quadrant B5,308,498569,732
Events in quadrant C3,395,777587,244
Events in quadrant D6,012,004547,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147973
B0201482
C0143592
D0225232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6828691.010545%
B682887012.741652%
C68281452.123609%
D68285197.601054%

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 7563 6829 46 46 0.61% 0.67%
B 7563 6828 603 603 7.97% 8.83%
C 7563 6829 5 5 0.07% 0.07%
D 7562 6828 548 548 7.25% 8.03%

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 15 174 271254 1605.8 836 820 168.4
A 8 192 14308 80.09 836 820 168.4
A 13 254 13969 78.08 836 820 168.4
B 10 245 1968585 13053.19 793 773 150.8
B 5 172 46996 306.61 793 773 150.8
B 5 255 46748 304.97 793 773 150.8
C 14 238 158057 835.92 796 801 188.1
C 3 233 48689 254.56 796 801 188.1
C 14 254 44444 231.99 796 801 188.1
D 1 52 1649981 8767.98 785 764 188.1
D 8 195 1184626 6293.95 785 764 188.1
D 2 250 54434 285.33 785 764 188.1

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