ASTROSAT CZTI

Data Quality Report

Orbit 29103

Creation date: 2024-06-27T20:00:12.896176
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_063T01_9000004182_29103cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29103cztM0_level2_quad_clean.evt
Size (bytes)1,688,163,840220,167,360
Size1.6 GB 210.0 MB
Events in quadrant A8,577,1791,394,768
Events in quadrant B8,935,5241,426,395
Events in quadrant C9,022,3071,372,315
Events in quadrant D23,361,9621,217,106

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370603
B0379133
C0379263
D0819403

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182291790.981952%
B182292071.135553%
C182302591.420735%
D18230439724.119583%

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 20014 18232 0 0 0.00% 0.00%
B 20014 18232 21 21 0.10% 0.12%
C 20015 18233 3 3 0.01% 0.02%
D 20015 18233 4286 4286 21.41% 23.51%

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 6 16 32331 68.03 2208 2159 443.5
A 13 254 31279 65.66 2208 2159 443.5
A 3 137 22157 45.09 2208 2159 443.5
B 10 245 217773 515.31 2189 2132 418.5
B 0 190 61595 142.1 2189 2132 418.5
B 12 111 53287 122.24 2189 2132 418.5
C 3 233 380160 756.53 2114 2122 499.7
C 14 238 338735 673.63 2114 2122 499.7
C 2 114 42960 81.72 2114 2122 499.7
D 1 52 10500928 22790.46 1929 1877 460.7
D 8 195 5243736 11378.59 1929 1877 460.7
D 12 233 158499 339.98 1929 1877 460.7

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