ASTROSAT CZTI

Data Quality Report

Orbit 19080

Creation date: 2024-06-27T17:58:50.605930
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/AS1A05_046T01_9000002834_19080cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19080cztM0_level2_quad_clean.evt
Size (bytes)497,586,240102,119,040
Size474.5 MB 97.4 MB
Events in quadrant A3,416,914652,171
Events in quadrant B3,733,921668,938
Events in quadrant C3,659,544647,162
Events in quadrant D3,770,026623,171

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147832
B0156392
C0153002
D0159512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7200390.541667%
B7200851.180556%
C7200831.152778%
D72001241.722222%

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 8005 7201 0 0 0.00% 0.00%
B 8005 7201 21 21 0.26% 0.29%
C 8005 7201 4 4 0.05% 0.06%
D 8005 7201 58 58 0.72% 0.81%

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 15 174 14508 76.01 882 864 179.5
A 13 254 8416 42.07 882 864 179.5
A 0 226 7608 37.57 882 864 179.5
B 3 112 116524 688.44 880 859 168.0
B 7 220 106470 628.6 880 859 168.0
B 0 197 24977 143.55 880 859 168.0
C 3 233 143037 706.44 856 862 201.3
C 14 238 132277 652.98 856 862 201.3
C 0 207 44167 215.18 856 862 201.3
D 1 52 293349 1387.71 862 836 210.8
D 7 238 114116 537.41 862 836 210.8
D 11 176 101061 475.48 862 836 210.8

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