ASTROSAT CZTI

Data Quality Report

Orbit 04596

Creation date: 2024-06-27T14:44:22.511741
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/AS1G05_191T01_9000000572_04596cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04596cztM0_level2_quad_clean.evt
Size (bytes)10,831,6801,154,880
Size10.3 MB 1.1 MB
Events in quadrant A75,4544,251
Events in quadrant B81,4834,558
Events in quadrant C70,3613,591
Events in quadrant D87,7543,993

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12247644991680
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0475176
B0493168
C0450174
D0547206

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13310.751880%
B13710.729927%
C13100.000000%
D13010.769231%

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 152 142 0 0 0.00% 0.00%
B 153 143 0 0 0.00% 0.00%
C 145 138 0 0 0.00% 0.00%
D 146 139 0 0 0.00% 0.00%

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 14 667 107.88 19 18 6.0
A 13 11 358 56.52 19 18 6.0
A 0 226 215 32.75 19 18 6.0
B 14 167 1663 282.97 19 19 5.8
B 4 80 1030 174.01 19 19 5.8
B 10 246 918 154.74 19 19 5.8
C 5 250 211 31.71 17 17 6.1
C 13 61 133 18.96 17 17 6.1
C 3 14 61 7.19 17 17 6.1
D 2 136 11369 1861.47 17 16 6.1
D 12 217 6440 1053.3 17 16 6.1
D 13 235 1074 173.47 17 16 6.1

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