ASTROSAT CZTI

Data Quality Report

Orbit 24544

Creation date: 2024-06-27T19:07:06.605864
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/AS1T03_183T01_9000003606_24544cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24544cztM0_level2_quad_clean.evt
Size (bytes)442,160,640101,566,080
Size421.7 MB 96.9 MB
Events in quadrant A3,014,727669,448
Events in quadrant B3,099,403680,796
Events in quadrant C3,054,213650,625
Events in quadrant D3,793,589634,672

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130711
B0131631
C0131901
D0154101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304590.935914%
B6305671.062649%
C63051141.808089%
D6305731.157811%

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 7284 6304 0 0 0.00% 0.00%
B 7285 6305 1 1 0.01% 0.02%
C 7285 6305 1 1 0.01% 0.02%
D 7285 6305 8 8 0.11% 0.13%

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 13 254 9697 57.03 781 764 156.6
A 3 137 6967 39.6 781 764 156.6
A 0 226 6628 37.43 781 764 156.6
B 12 111 17861 116.87 776 757 146.4
B 3 64 17804 116.48 776 757 146.4
B 3 209 16528 107.76 776 757 146.4
C 14 238 119017 684.7 748 753 172.7
C 5 112 12779 69.63 748 753 172.7
C 13 61 5192 25.7 748 753 172.7
D 8 195 315902 1709.47 762 739 184.4
D 12 218 294698 1594.46 762 739 184.4
D 1 52 233090 1260.29 762 739 184.4

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