ASTROSAT CZTI

Data Quality Report

Orbit 03996

Creation date: 2024-06-27T14:36:09.137725
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_247T01_9000000512_03996cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03996cztM0_level2_quad_clean.evt
Size (bytes)455,008,320105,966,720
Size433.9 MB 101.1 MB
Events in quadrant A3,014,554700,532
Events in quadrant B3,022,878707,139
Events in quadrant C2,796,726695,622
Events in quadrant D4,513,235661,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133233
B0132132
C0128772
D0179502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370620.973312%
B6370380.596546%
C6370260.408163%
D63701592.496075%

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 7600 6372 15 15 0.20% 0.24%
B 7600 6372 4 4 0.05% 0.06%
C 7600 6372 0 0 0.00% 0.00%
D 7600 6372 103 103 1.36% 1.62%

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 0 50 86907 589.05 726 711 146.3
A 0 118 38240 256.47 726 711 146.3
A 8 4 35489 237.67 726 711 146.3
B 3 0 51818 367.9 738 720 138.9
B 14 167 49451 350.86 738 720 138.9
B 12 18 19505 135.25 738 720 138.9
C 13 61 6018 32.22 714 717 164.5
C 2 37 2448 10.52 714 717 164.5
C 9 247 2136 8.62 714 717 164.5
D 2 63 1728306 10356.6 701 681 166.8
D 8 112 35889 211.06 701 681 166.8
D 2 232 34965 205.52 701 681 166.8

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