ASTROSAT CZTI

Data Quality Report

Orbit 08530

Creation date: 2024-06-27T15:33:56.227936
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_060T01_9000001200_08530cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08530cztM0_level2_quad_clean.evt
Size (bytes)596,125,44092,499,840
Size568.5 MB 88.2 MB
Events in quadrant A4,420,762552,426
Events in quadrant B4,728,767553,313
Events in quadrant C4,127,040546,767
Events in quadrant D4,175,734534,117

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192934
B0198213
C0186193
D0189413

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88615736.466539%
B88616327.132378%
C88614234.773728%
D88614825.439567%

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 8986 8862 14 14 0.16% 0.16%
B 8986 8864 34 34 0.38% 0.38%
C 8986 8865 0 0 0.00% 0.00%
D 8986 8863 9 9 0.10% 0.10%

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 15 223 160403 716.44 1078 1050 222.4
A 15 239 49171 216.35 1078 1050 222.4
A 13 251 40706 178.29 1078 1050 222.4
B 10 16 235587 1122.75 1079 1048 208.9
B 15 255 89298 422.46 1079 1048 208.9
B 0 214 70466 332.31 1079 1048 208.9
C 13 61 8146 28.82 1054 1053 246.1
C 14 234 6723 23.04 1054 1053 246.1
C 8 222 6415 21.79 1054 1053 246.1
D 1 52 130066 498.78 1048 1018 258.7
D 2 234 25841 95.94 1048 1018 258.7
D 12 233 24899 92.3 1048 1018 258.7

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