ASTROSAT CZTI

Data Quality Report

Orbit 10420

Creation date: 2024-06-27T15:59:54.155254
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/AS1G07_068T02_9000001508_10420cztM0_level2.evt modeM0/AS1G07_068T02_9000001508_10420cztM0_level2_quad_clean.evt
Size (bytes)638,424,000104,906,880
Size608.8 MB 100.0 MB
Events in quadrant A5,140,078631,447
Events in quadrant B4,467,961637,891
Events in quadrant C3,931,790681,540
Events in quadrant D5,254,565671,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312136
B0312135
C0312132
D0296123

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04015
B04116
C04116
D0349

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03739917094
B03879020463
C03137314436
D03921318152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7700831.077922%
B77681231.583419%
C8233170.206486%
D80751862.303406%

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 11447 8357 23 23 0.20% 0.28%
B 11447 8402 55 55 0.48% 0.65%
C 11447 8791 7 7 0.06% 0.08%
D 11447 8332 183 183 1.60% 2.20%

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 13 251 1505889 8003.82 934 915 188.0
A 4 2 21862 111.4 934 915 188.0
A 1 162 10803 52.59 934 915 188.0
B 4 239 566203 3190.57 948 927 177.2
B 10 245 72079 401.6 948 927 177.2
B 0 214 67557 376.08 948 927 177.2
C 14 234 39227 168.08 997 1003 227.4
C 13 61 7385 28.06 997 1003 227.4
C 14 67 3073 9.1 997 1003 227.4
D 2 33 686692 3003.05 957 932 228.4
D 8 195 485262 2120.96 957 932 228.4
D 1 52 225236 982.26 957 932 228.4

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