ASTROSAT CZTI

Data Quality Report

Orbit 14140

Creation date: 2024-06-27T16:50:52.030585
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/AS1A04_218T04_9000002086_14140cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14140cztM0_level2_quad_clean.evt
Size (bytes)583,395,84073,506,240
Size556.4 MB 70.1 MB
Events in quadrant A3,513,482454,830
Events in quadrant B3,541,537456,009
Events in quadrant C3,611,581462,503
Events in quadrant D6,564,651401,984

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143033
B0144902
C0143892
D0240602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64551392.153369%
B64551281.982959%
C6455791.223857%
D645586413.384973%

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 7681 6457 26 26 0.34% 0.40%
B 7681 6457 0 0 0.00% 0.00%
C 7681 6457 2 2 0.03% 0.03%
D 7681 6457 688 688 8.96% 10.66%

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 11 29 83405 474.05 878 862 174.1
A 12 189 30688 171.29 878 862 174.1
A 9 143 10919 57.76 878 862 174.1
B 0 214 51554 310.81 867 848 163.1
B 0 189 35770 214.06 867 848 163.1
B 3 209 21878 128.91 867 848 163.1
C 3 233 309862 1591.18 844 851 194.2
C 14 234 11080 52.67 844 851 194.2
C 13 61 6164 27.36 844 851 194.2
D 7 80 3122020 16503.92 809 794 189.1
D 8 195 125238 658.02 809 794 189.1
D 1 52 60202 314.13 809 794 189.1

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