ASTROSAT CZTI

Data Quality Report

Orbit 25564

Creation date: 2024-06-27T19:19:04.355424
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/AS1A09_043T02_9000003726_25564cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25564cztM0_level2_quad_clean.evt
Size (bytes)560,266,56087,768,000
Size534.3 MB 83.7 MB
Events in quadrant A3,388,225581,288
Events in quadrant B3,482,638586,768
Events in quadrant C3,364,276542,624
Events in quadrant D6,304,880506,357

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136070
B0139340
C0135930
D0231720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323871.375929%
B63231101.739681%
C63231272.008540%
D632367310.643682%

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 7483 6324 0 0 0.00% 0.00%
B 7483 6324 0 0 0.00% 0.00%
C 7483 6324 1 1 0.01% 0.02%
D 7483 6324 573 573 7.66% 9.06%

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 13 254 10544 55.14 878 862 175.6
A 3 137 7602 38.39 878 862 175.6
A 0 226 7562 38.16 878 862 175.6
B 3 112 33635 201.35 862 842 162.9
B 0 219 31022 185.31 862 842 162.9
B 0 190 24224 143.57 862 842 162.9
C 14 238 131040 685.21 817 822 190.0
C 2 16 26269 133.9 817 822 190.0
C 3 233 25983 132.4 817 822 190.0
D 8 195 1581468 7912.52 816 793 199.8
D 1 52 1014876 5076.28 816 793 199.8
D 2 244 307710 1536.36 816 793 199.8

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