ASTROSAT CZTI

Data Quality Report

Orbit 12226

Creation date: 2024-06-27T16:24:05.004456
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/AS1C03_014T02_9000001806_12226cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12226cztM0_level2_quad_clean.evt
Size (bytes)543,818,880124,061,760
Size518.6 MB 118.3 MB
Events in quadrant A3,856,502843,318
Events in quadrant B5,311,535805,995
Events in quadrant C3,061,546847,002
Events in quadrant D3,791,538799,920

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157663
B0201982
C0135412
D0157682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605811.226344%
B660572310.946253%
C6605380.575322%
D66052193.315670%

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 7671 6606 10 10 0.13% 0.15%
B 7671 6606 474 474 6.18% 7.18%
C 7671 6606 2 2 0.03% 0.03%
D 7671 6606 168 168 2.19% 2.54%

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 13 251 216172 1351.6 786 769 159.4
A 1 162 180035 1124.85 786 769 159.4
A 1 178 101851 634.26 786 769 159.4
B 4 239 2162597 15356.73 749 731 140.8
B 11 51 100863 711.28 749 731 140.8
B 0 229 30688 212.8 749 731 140.8
C 7 221 12799 67.79 773 776 177.3
C 4 175 8678 44.56 773 776 177.3
C 8 128 8574 43.97 773 776 177.3
D 1 52 603822 3336.96 759 737 180.7
D 13 104 128189 705.21 759 737 180.7
D 5 222 35466 192.16 759 737 180.7

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