ASTROSAT CZTI

Data Quality Report

Orbit 08076

Creation date: 2024-06-27T15:27:37.278400
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/AS1A02_055T01_9000001114_08076cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08076cztM0_level2_quad_clean.evt
Size (bytes)484,793,28090,604,800
Size462.3 MB 86.4 MB
Events in quadrant A3,264,009571,390
Events in quadrant B3,373,246589,356
Events in quadrant C3,250,152595,053
Events in quadrant D4,371,816553,273

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137923
B0140652
C0137152
D0171712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62281071.718048%
B62281292.071291%
C6228891.429030%
D62284998.012203%

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 8873 6230 0 0 0.00% 0.00%
B 8873 6230 8 8 0.09% 0.13%
C 8873 6230 0 0 0.00% 0.00%
D 8873 6230 407 407 4.59% 6.53%

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 0 128 116582 706.92 818 802 163.8
A 0 226 7584 41.41 818 802 163.8
A 12 194 7433 40.49 818 802 163.8
B 11 51 89827 575.78 828 810 154.6
B 10 16 34980 221.02 828 810 154.6
B 4 81 19438 120.49 828 810 154.6
C 1 16 44652 235.06 819 825 186.5
C 9 15 6611 31.03 819 825 186.5
C 13 61 6302 29.37 819 825 186.5
D 1 52 1088956 5173.14 790 774 210.4
D 7 71 204375 967.9 790 774 210.4
D 12 233 29330 135.75 790 774 210.4

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