ASTROSAT CZTI

Data Quality Report

Orbit 04430

Creation date: 2024-06-27T14:41:54.442576
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_214T01_9000000552_04430cztM0_level2.evt modeM0/AS1G05_214T01_9000000552_04430cztM0_level2_quad_clean.evt
Size (bytes)159,883,2006,439,680
Size152.5 MB 6.1 MB
Events in quadrant A1,081,09519,489
Events in quadrant B1,112,09816,998
Events in quadrant C868,02721,019
Events in quadrant D1,666,93015,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042972
B043441
C036561
D061121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16401489.024390%
B16401177.134146%
C1640623.780488%
D164022313.597561%

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 2820 1641 25 25 0.89% 1.52%
B 2820 1641 20 20 0.71% 1.22%
C 2820 1641 0 0 0.00% 0.00%
D 2820 1641 96 96 3.40% 5.85%

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 13 210739 4332.87 225 220 48.6
A 12 194 2200 40.75 225 220 48.6
A 0 226 2183 40.4 225 220 48.6
B 14 167 163018 3514.46 224 219 46.3
B 10 16 81382 1752.12 224 219 46.3
B 12 111 4197 85.88 224 219 46.3
C 9 247 7608 137.86 218 219 53.6
C 7 237 2750 47.22 218 219 53.6
C 13 61 1934 32.0 218 219 53.6
D 13 114 399583 7637.61 207 200 52.3
D 13 53 393535 7521.96 207 200 52.3
D 2 136 67698 1290.8 207 200 52.3

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