ASTROSAT CZTI

Data Quality Report

Orbit 05874

Creation date: 2024-06-27T15:00:18.197999
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/AS1G06_023T01_9000000762_05874cztM0_level2.evt modeM0/AS1G06_023T01_9000000762_05874cztM0_level2_quad_clean.evt
Size (bytes)129,107,52025,637,760
Size123.1 MB 24.5 MB
Events in quadrant A753,104169,563
Events in quadrant B812,716173,579
Events in quadrant C751,124167,000
Events in quadrant D1,486,946152,973

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032212
B033971
C031971
D054791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1519150.987492%
B1519352.304147%
C1519150.987492%
D1519734.805793%

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 2674 1520 0 0 0.00% 0.00%
B 2674 1520 0 0 0.00% 0.00%
C 2674 1520 0 0 0.00% 0.00%
D 2674 1520 51 51 1.91% 3.36%

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 8 6 7992 191.4 191 187 40.8
A 15 236 2689 61.35 191 187 40.8
A 8 5 2612 59.47 191 187 40.8
B 0 214 21018 530.55 197 193 39.3
B 15 204 17440 439.39 197 193 39.3
B 4 48 4074 98.87 197 193 39.3
C 1 16 3123 63.56 191 191 46.1
C 13 61 1513 28.66 191 191 46.1
C 7 159 566 8.13 191 191 46.1
D 13 105 359505 7653.88 185 179 46.9
D 2 152 178824 3805.26 185 179 46.9
D 2 136 126272 2685.86 185 179 46.9

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