ASTROSAT CZTI

Data Quality Report

Orbit 10729

Creation date: 2024-06-27T16:03:00.226820
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/AS1A03_078T01_9000001546_10729cztM0_level2.evt modeM0/AS1A03_078T01_9000001546_10729cztM0_level2_quad_clean.evt
Size (bytes)550,681,92099,020,160
Size525.2 MB 94.4 MB
Events in quadrant A3,636,305621,497
Events in quadrant B4,689,001624,200
Events in quadrant C3,480,152631,052
Events in quadrant D4,357,497594,380

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160103
B0191192
C0158302
D0179992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7587931.225781%
B75874385.773033%
C7587470.619481%
D75871091.436668%

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 8542 7590 2 2 0.02% 0.03%
B 8542 7589 157 157 1.84% 2.07%
C 8542 7590 0 0 0.00% 0.00%
D 8542 7590 57 57 0.67% 0.75%

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 14 254 48142 253.8 903 882 186.2
A 15 239 36834 193.07 903 882 186.2
A 13 251 31556 164.73 903 882 186.2
B 4 239 865502 4956.46 902 880 174.4
B 4 81 195614 1116.32 902 880 174.4
B 0 214 41168 230.95 902 880 174.4
C 14 234 22380 102.37 887 892 209.9
C 13 61 6538 26.9 887 892 209.9
C 3 202 2151 6.0 887 892 209.9
D 8 195 404835 1882.52 874 850 214.6
D 1 52 245405 1139.59 874 850 214.6
D 13 249 157932 731.98 874 850 214.6

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