ASTROSAT CZTI

Data Quality Report

Orbit 29982

Creation date: 2024-06-27T20:09:40.303721
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/AS1A10_094T16_9000004304_29982cztM0_level2.evt modeM0/AS1A10_094T16_9000004304_29982cztM0_level2_quad_clean.evt
Size (bytes)93,078,72021,634,560
Size88.8 MB 20.6 MB
Events in quadrant A503,806146,453
Events in quadrant B971,541142,624
Events in quadrant C610,895139,536
Events in quadrant D652,600139,729

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022630
B036570
C025660
D026510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112910.088574%
B1130110.973451%
C113010.088496%
D1130131.150442%

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 1129 1129 0 0 0.00% 0.00%
B 1130 1130 1 1 0.09% 0.09%
C 1130 1130 0 0 0.00% 0.00%
D 1130 1130 13 13 1.15% 1.15%

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 2464 83.65 130 128 27.9
A 3 137 1193 38.14 130 128 27.9
A 0 226 1185 37.85 130 128 27.9
B 6 159 361129 13499.05 127 125 26.7
B 0 190 105528 3941.34 127 125 26.7
B 6 36 4806 175.04 127 125 26.7
C 3 233 118788 3954.95 120 120 30.0
C 14 238 19716 653.09 120 120 30.0
C 2 114 2793 89.09 120 120 30.0
D 12 233 69885 2253.93 123 120 31.0
D 8 195 60919 1964.26 123 120 31.0
D 7 80 23305 749.05 123 120 31.0

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