ASTROSAT CZTI

Data Quality Report

Orbit 14122

Creation date: 2024-06-27T16:50:32.556902
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/AS1A04_149T01_9000002082_14122cztM0_level2.evt modeM0/AS1A04_149T01_9000002082_14122cztM0_level2_quad_clean.evt
Size (bytes)487,411,20091,609,920
Size464.8 MB 87.4 MB
Events in quadrant A3,030,518597,256
Events in quadrant B4,828,151588,020
Events in quadrant C3,103,146591,966
Events in quadrant D3,389,159575,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128652
B0182831
C0128471
D0139771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6045851.406121%
B604580513.316791%
C6045681.124897%
D6045841.389578%

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 7026 6046 9 9 0.13% 0.15%
B 7026 6047 459 459 6.53% 7.59%
C 7026 6046 2 2 0.03% 0.03%
D 7026 6047 20 20 0.28% 0.33%

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 12 189 146819 991.69 726 711 147.3
A 12 96 68393 459.38 726 711 147.3
A 8 15 13279 85.3 726 711 147.3
B 0 85 1928200 14674.81 692 675 131.3
B 0 189 101216 765.45 692 675 131.3
B 0 219 33529 250.13 692 675 131.3
C 3 233 318428 1946.02 709 714 163.3
C 0 207 13789 80.09 709 714 163.3
C 14 234 5805 31.18 709 714 163.3
D 1 52 472918 2574.59 706 688 183.4
D 10 157 64783 349.44 706 688 183.4
D 2 152 57110 307.61 706 688 183.4

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